Tools

These are some of the top open-source tools we have identified in use across all of the companies we are profiling. We have prioritized the tooling that is relevant to conversations we are having and a variety of capabilities we are working to develop.

198
Tools
253
companies
86%
PowerShell Optimizing

A cross-platform task automation and configuration management framework from Microsoft, consisting of a command-line shell and scripting language built on .NET.

Scripting Automation Shell Command Line Microsoft
253
companies
86%
Elasticsearch Optimizing

A distributed, RESTful search and analytics engine built on Apache Lucene, designed for horizontal scalability, real-time search, and handling large volumes of data.

Search Engine Analytics Distributed System NoSQL Real-Time
253
companies
86%
React Native Optimizing

React Native is a framework developed by Meta for building native mobile applications for iOS and Android using React and JavaScript. It allows developers to share code across platforms while delivering native performance and platform-specific UI components.

Mobile Development JavaScript Cross-Platform Frontend
253
companies
86%
ClickHouse Optimizing

Open-source column-oriented database management system designed for online analytical processing (OLAP) with exceptional query performance on large datasets.

Database Analytics OLAP Column Store Big Data
253
companies
86%
Angular Optimizing

Angular is a TypeScript-based web application framework developed and maintained by Google for building dynamic single-page and multi-page applications. It provides a comprehensive set of tools including dependency injection, two-way data binding, routing, and form handling out of the box.

Angular
251
companies
85%
Terraform Optimizing

Infrastructure as Code tool for building, changing, and versioning infrastructure safely and efficiently across multiple cloud providers

Infrastructure As Code DevOps Cloud Automation
251
companies
85%
TensorFlow Optimizing

An open-source machine learning framework developed by Google for building and training neural networks and deep learning models.

Machine Learning Deep Learning Python Neural Networks AI
251
companies
85%
Matplotlib Optimizing

A comprehensive library for creating static, animated, and interactive visualizations in Python

Python Data Visualization Plotting Charts Graphing
251
companies
85%
Semantic Kernel Optimizing

An open-source SDK that lets you easily build agents that can call your existing code, enabling AI orchestration with LLMs like GPT-4, plugins, and memory capabilities. It forms a core part of modern AI/ML pipelines and intelligent automation systems.

AI LLM Orchestration SDK Agents
248
companies
84%
Pandas Optimizing

A fast, powerful, flexible and easy to use open source data analysis and manipulation tool, built on top of the Python programming language.

Python Data Analysis Data Manipulation Data Science
245
companies
83%
Ethereum Optimizing

Ethereum is a decentralized, open-source blockchain platform that supports smart contracts—self-executing programs that run on its distributed network. It is the foundation for a vast ecosystem of decentralized applications (dApps), tokens, DeFi protocols, and NFTs, and uses a proof-of-stake consensus mechanism.

Ethereum
243
companies
83%
NumPy Optimizing

Fundamental package for scientific computing with Python, providing support for large, multi-dimensional arrays and matrices, along with a collection of mathematical functions to operate on these arrays.

Python Scientific Computing Data Science Machine Learning Mathematics
241
companies
82%
Git Optimizing

Distributed version control system for tracking changes in source code during software development

Version Control Development Tools Open Source
241
companies
82%
Kubeflow Optimizing

An open-source machine learning platform designed to orchestrate complicated ML workflows on Kubernetes, providing tools for model training, deployment, and pipeline management.

Machine Learning Kubernetes MLOps Data Science Model Training
240
companies
82%
PostgreSQL Optimizing

A powerful, open source object-relational database system with over 35 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.

Database SQL Open Source Relational Database
238
companies
81%
jQuery Optimizing

A fast, small, and feature-rich JavaScript library that simplifies HTML document traversal, event handling, animation, and Ajax interactions for rapid web development.

JavaScript Library DOM Manipulation Ajax Web Development
238
companies
81%
Kotlin Optimizing

Kotlin is a modern, statically typed programming language developed by JetBrains that runs on the Java Virtual Machine and compiles to JavaScript or native code. It is Google's preferred language for Android development and is widely adopted for its concise syntax, null safety, and full interoperability with Java.

Kotlin
237
companies
81%
Spring Boot Optimizing

An opinionated framework built on top of the Spring Framework that simplifies the development of production-ready applications with minimal configuration through auto-configuration and embedded servers.

Java Framework Web Development Microservices Backend
237
companies
81%
SonarQube Optimizing

SonarQube is a continuous code quality inspection platform that detects bugs, vulnerabilities, and code smells in over 30 programming languages. It integrates with CI/CD pipelines to enforce quality gates and track code health metrics across projects.

Code Quality Static Analysis Security DevOps
237
companies
81%
Python Optimizing

Python is a high-level, interpreted programming language known for its clear syntax, readability, and versatility. It is widely used in web development, data science, machine learning, automation, and scripting, supported by a vast ecosystem of libraries and frameworks.

Python
233
companies
79%
Prometheus Optimizing

Open-source monitoring and alerting toolkit designed for reliability and scalability, featuring a multi-dimensional data model, flexible query language (PromQL), and time series database.

Monitoring Observability Time Series Alerting Metrics
233
companies
79%
Buildpacks Optimizing

Transform application source code into container images without writing Dockerfiles by automatically detecting dependencies and configuring the runtime environment

Containers Build Tools CI/CD Cloud Native
223
companies
76%
Consul Optimizing

Service mesh and service discovery platform that provides a full-featured control plane with service discovery, configuration, and segmentation functionality

Service Mesh Service Discovery Distributed Systems Infrastructure Networking
223
companies
76%
Scala Optimizing

Scala is a programming language that combines object-oriented and functional programming paradigms, running on the Java Virtual Machine. It is known for its expressive type system, concise syntax, and strong support for concurrent and distributed computing, particularly through frameworks like Apache Spark.

Scala
208
companies
71%
SPIRE Optimizing

SPIFFE Runtime Environment - A toolchain for establishing trust between software systems across a wide variety of hosting platforms through automated attestation and workload identity distribution

Security Identity Authentication Zero Trust Cloud Native
203
companies
69%
React Optimizing

React is an open-source JavaScript library developed by Meta for building user interfaces through reusable, composable components. Its virtual DOM, declarative syntax, and large ecosystem make it one of the most popular choices for building modern web and mobile applications.

React
201
companies
68%
Perl Optimizing

Perl is a technology or concept used in computing and information technology to address specific technical challenges. It provides capabilities that help practitioners build, manage, or improve systems and processes in their domain.

Perl
196
companies
67%
Pixie Optimizing

Kubernetes observability platform that uses eBPF to automatically collect telemetry data including full-body application requests, resource and network metrics, and application profiles without manual instrumentation.

Observability Kubernetes Monitoring eBPF
195
companies
66%
Node.js Optimizing

Node.js is a JavaScript runtime built on Chrome's V8 engine that enables server-side execution of JavaScript. It uses an event-driven, non-blocking I/O model that makes it efficient for building scalable network applications, APIs, and real-time services.

Node.js
194
companies
66%
Open Policy Agent Optimizing

Policy-based control for cloud native environments that enables unified, context-aware policy enforcement across the stack using a declarative policy language called Rego. It plays a critical role in protecting organizational assets and maintaining a strong security posture.

Policy As Code Security Authorization Cloud Native Governance
193
companies
66%
WordPress Optimizing

WordPress is an open-source content management system (CMS) that powers a significant portion of websites on the internet. Its extensive plugin and theme ecosystem, combined with an intuitive editing interface, makes it accessible for building everything from personal blogs to complex enterprise websites.

WordPress
191
companies
65%
Spring Optimizing

Spring is a comprehensive framework for building enterprise Java applications, providing infrastructure support for dependency injection, data access, security, and web development. It simplifies Java development with a modular approach and extensive ecosystem of projects.

Java Framework Backend Enterprise Dependency Injection
191
companies
65%
Spring Framework Optimizing

Comprehensive framework for building enterprise Java applications with dependency injection, aspect-oriented programming, and extensive infrastructure support

Java Framework Enterprise Dependency Injection Backend
178
companies
60%
OpenTelemetry Optimizing

Vendor-neutral open-source observability framework for cloud-native software, providing a collection of tools, APIs, and SDKs for instrumenting, generating, collecting, and exporting telemetry data including metrics, logs, and traces.

Observability Monitoring Tracing Metrics Logging
176
companies
60%
Vite Optimizing

Vite is a next-generation frontend build tool that provides lightning-fast hot module replacement and optimized production builds. It leverages native ES modules for rapid development server startup and supports frameworks like Vue, React, and Svelte.

Build Tool Frontend Development Server
176
companies
60%
Score Optimizing

A framework for evaluating and scoring AI model outputs and responses

Evaluation AI Scoring
171
companies
58%
Apache Spark Optimizing

Open-source unified analytics engine for large-scale data processing with built-in modules for streaming, SQL, machine learning and graph processing

Big Data Data Processing Analytics Distributed Computing
171
companies
58%
Apache Spark Optimizing

Apache Spark is a specialized technology or methodology in the apache domain that addresses specific technical or business requirements. It provides targeted capabilities that help practitioners and organizations solve problems and improve outcomes in their area of focus.

Apache Spark
162
companies
55%
Keycloak Optimizing

Open source identity and access management solution for modern applications and services

Authentication Authorization Identity Management SSO OAuth
160
companies
54%
Kafka Connect Optimizing

A framework for connecting Apache Kafka with external systems such as databases, key-value stores, search indexes, and file systems using source and sink connectors.

Data Integration Streaming ETL Apache Kafka
156
companies
53%
Vitess Optimizing

A database clustering system for horizontal scaling of MySQL through generalized sharding

Database MySQL Distributed Systems Sharding Cloud Native
155
companies
53%
Kubernetes Optimizing

Open-source container orchestration platform for automating deployment, scaling, and management of containerized applications

Container Orchestration DevOps Cloud Native Infrastructure
154
companies
52%
Vue.js Optimizing

A progressive JavaScript framework for building user interfaces with a focus on declarability and component composition.

JavaScript Frontend Framework Web Development SPA
154
companies
52%
Lima Optimizing

Linux virtual machines on macOS with automatic file sharing, port forwarding, and containerd integration for running containers

Virtualization Containers macOS Linux
153
companies
52%
Argo Optimizing

Open source tool for Kubernetes-native workflows, events, CI/CD, and progressive delivery

Kubernetes Workflows CI/CD GitOps
151
companies
51%

A community project to manage and monitor Spring Boot applications via a simple UI, providing insights into metrics, health status, and application details.

Java Spring Boot Monitoring Administration Dashboard
149
companies
51%
werf Optimizing

A CLI tool that implements the full application lifecycle (build, deploy, cleanup) using Git as a single source of truth, with built-in support for Helm and integration with CI/CD systems.

DevOps CI/CD Kubernetes Deployment GitOps
145
companies
49%
Linux Optimizing

Open-source Unix-like operating system kernel first released by Linus Torvalds in 1991, serving as the foundation for numerous distributions and powering everything from servers to embedded systems.

Operating System Open Source Kernel Unix Server
143
companies
48%
C++ Optimizing

C++ is a technology or concept used in computing and information technology to address specific technical challenges. It provides capabilities that help practitioners build, manage, or improve systems and processes in their domain.

C++
139
companies
47%
Docker Optimizing

Docker is a platform for developing, shipping, and running applications inside lightweight containers. It enables developers to package applications with their dependencies for consistent deployment across development, testing, and production environments.

Containers Containerization DevOps Infrastructure Platform
138
companies
47%
Fluid Established

A responsive front-end framework for building flexible and adaptive web layouts

CSS Framework Responsive Design Front-End
137
companies
46%

A method of packaging, deploying, and managing Kubernetes applications that extends the Kubernetes API to create, configure, and manage instances of complex applications on behalf of a Kubernetes user.

Kubernetes Automation Infrastructure DevOps Cloud Native
134
companies
45%
Porter Established

A package manager for Kubernetes that uses Cloud Native Application Bundles (CNAB) to package and deploy applications along with their dependencies and configuration.

Kubernetes Package Manager CNAB DevOps Cloud Native
132
companies
45%
C# Established

C# is a modern, object-oriented programming language developed by Microsoft as part of the .NET platform. It is used for building Windows applications, web services, games (via Unity), and enterprise software, offering strong typing, garbage collection, and rich framework support.

C#
131
companies
44%
Elastic Stack Optimizing

A collection of open-source products (Elasticsearch, Logstash, Kibana, and Beats) for searching, analyzing, and visualizing data in real time from any source.

Search Analytics Logging Monitoring Visualization
131
companies
44%
Elk Stack Optimizing

A collection of three open-source products - Elasticsearch, Logstash, and Kibana - used for searching, analyzing, and visualizing log data in real time.

Logging Monitoring Analytics Search Visualization
127
companies
43%
Swift Optimizing

Swift is a powerful, intuitive programming language developed by Apple for building applications across iOS, macOS, watchOS, and tvOS. It combines modern language features like type safety, optionals, and closures with high performance, making it the primary language for Apple platform development.

Programming Language iOS macOS Apple Mobile Development
125
companies
42%
Radius Established

Application platform for cloud-native applications that enables developers to define, deploy, and manage applications across multiple clouds and on-premises environments using a unified model.

Cloud Native Application Platform Multi Cloud Infrastructure
123
companies
42%
MongoDB Optimizing

A document-oriented NoSQL database program that uses JSON-like documents with optional schemas for storing and retrieving data.

Database NoSQL Document Store
118
companies
40%
PyTorch Optimizing

An open source machine learning framework that accelerates the path from research prototyping to production deployment with dynamic computational graphs and intuitive Python-first development.

Machine Learning Deep Learning Python Artificial Intelligence Neural Networks
115
companies
39%
Jenkins Optimizing

A suite of plugins that supports implementing and integrating continuous delivery pipelines into Jenkins. It provides an extensible set of tools for modeling simple-to-complex delivery pipelines as code via the Pipeline DSL.

CI/CD Automation DevOps Continuous Integration Continuous Delivery
114
companies
39%
Chef Optimizing

A powerful automation platform that transforms infrastructure into code, enabling teams to automate how they build, deploy, and manage infrastructure across cloud, on-premises, and hybrid environments.

Configuration Management Infrastructure As Code DevOps Automation
114
companies
39%
Apache Established

Apache HTTP Server is one of the most widely used open-source web servers, known for its flexibility, reliability, and extensive module system. It has been a cornerstone of the internet since 1995, serving static and dynamic content through a configurable, cross-platform architecture.

Apache
113
companies
38%
Vault Optimizing

A tool for securely accessing secrets, managing encryption keys, and providing identity-based access across distributed infrastructure

Security Secrets Management Encryption Identity Management
113
companies
38%
Hashicorp Vault Optimizing

A tool for securely accessing secrets, managing encryption keys, and protecting sensitive data through a unified interface with support for dynamic secrets and encryption as a service.

Security Secrets Management Encryption DevOps
109
companies
37%
Elk Optimizing

Elk is a nimble Mastodon web client built with Vue 3 and Nuxt 3, offering a modern and responsive interface for browsing the fediverse.

Mastodon Social Media Fediverse Vue Nuxt
102
companies
34%
Redis Optimizing

An open-source, in-memory data structure store used as a database, cache, and message broker, known for its high performance and support for various data structures like strings, hashes, lists, sets, and sorted sets.

Database Cache In-Memory NoSQL Key-Value Store
102
companies
34%
Rook Established

Cloud-native storage orchestrator for Kubernetes, providing the platform, framework, and support for distributed storage systems to natively integrate with cloud-native environments

Kubernetes Storage Cloud Native Orchestration
97
companies
33%
Apache Airflow Optimizing

A platform to programmatically author, schedule, and monitor workflows using directed acyclic graphs (DAGs)

Workflow Orchestration Data Engineering Python Scheduling ETL
96
companies
32%
Helm Established

Package manager for Kubernetes that helps you define, install, and upgrade complex Kubernetes applications using charts

Kubernetes Package Manager DevOps Container Orchestration
94
companies
32%
Ansible Optimizing

Open-source automation tool for configuration management, application deployment, and task automation using simple YAML playbooks

Automation Configuration Management Infrastructure As Code DevOps Orchestration
92
companies
31%
Grafana Optimizing

Grafana is an open-source platform for data visualization, monitoring, and observability. It allows users to create interactive dashboards from diverse data sources including Prometheus, Elasticsearch, and cloud databases.

Observability Analytics Monitoring Visualization Dashboard
89
companies
30%
BFE Established

BFE (Beyond Front End) is an open-source layer 7 load balancer developed by Baidu. It provides advanced traffic routing, forwarding, and load balancing capabilities with support for HTTP, HTTPS, SPDY, HTTP/2, WebSocket, and TLS protocols.

Load Balancer Networking Open Source Traffic Management
88
companies
30%
MySQL Optimizing

An open-source relational database management system that uses SQL (Structured Query Language) for data management and queries.

Database SQL Open Source Relational Database
85
companies
29%
Llama Established

A family of large language models developed by Meta AI, designed for natural language processing tasks with various model sizes optimized for different use cases.

Large Language Models Natural Language Processing Machine Learning Artificial Intelligence Open Source
85
companies
29%
PHP Established

PHP is a widely-used server-side scripting language especially suited for web development and embedded in HTML. It powers a large portion of the web including platforms like WordPress, and provides extensive database support, framework options, and a mature ecosystem.

PHP
84
companies
28%
Flux Established

An open-source text-to-image AI model developed by Black Forest Labs that generates high-quality images from text prompts with improved prompt following and visual quality.

AI Image Generation Machine Learning Text To Image Open Source
82
companies
28%

Open-source library providing thousands of pre-trained models for natural language processing, computer vision, and audio tasks with simple APIs for PyTorch, TensorFlow, and JAX.

Machine Learning Natural Language Processing Deep Learning Python Open Source
79
companies
27%
Redux Established

A predictable state container for JavaScript apps, commonly used with React for managing application state through a unidirectional data flow pattern.

State Management JavaScript React Frontend
76
companies
26%
Jest Established

A delightful JavaScript testing framework with a focus on simplicity, featuring zero configuration, snapshot testing, and built-in code coverage.

Testing JavaScript Unit Testing Snapshot Testing
75
companies
25%
ORAS Established

OCI Registry As Storage - A way to push and pull OCI artifacts to and from OCI registries

Container Registry OCI Artifact Storage Cloud Native
74
companies
25%
Spring Cloud Stream Established

A framework for building highly scalable event-driven microservices connected with shared messaging systems

Java Messaging Microservices Event-Driven Spring
73
companies
25%
RabbitMQ Optimizing

Open-source message broker software that implements the Advanced Message Queuing Protocol (AMQP) for reliable message delivery and routing between distributed systems.

Message Queue Message Broker AMQP Distributed Systems Asynchronous Processing
70
companies
23%
PySpark Established

Python API for Apache Spark, enabling scalable data processing and analytics using Python programming language with distributed computing capabilities.

Big Data Python Distributed Computing Data Processing Apache Spark
64
companies
21%
Apache Beam Established

Apache Beam is a unified programming model for defining both batch and streaming data processing pipelines that can run on multiple execution engines. It provides a portable API that lets developers write pipeline logic once and deploy it to Apache Flink, Spark, Google Dataflow, or other supported runners.

Apache Beam
62
companies
21%
SVN Optimizing

Apache Subversion (SVN) is a centralized version control system that tracks changes to files and directories over time, allowing teams to collaborate on code and maintain a history of revisions.

Version Control Source Control Apache
61
companies
20%
FastAPI Established

Modern, fast (high-performance) web framework for building APIs with Python based on standard Python type hints

Python Web Framework API Asynchronous
59
companies
20%
Cloud Custodian Established

Rules engine for cloud security, compliance, and cost optimization that enables users to define policies to manage cloud resources across AWS, Azure, and GCP. It helps organizations meet regulatory requirements and demonstrate accountability to stakeholders.

Cloud Security Compliance Cost Optimization Policy as Code Multi-Cloud
57
companies
19%
Sonar Established

A code quality and security analysis platform that continuously inspects code for bugs, vulnerabilities, and code smells across multiple programming languages.

Code Quality Static Analysis Security DevOps CI/CD
56
companies
19%
Selenium Optimizing

Selenium is an open-source framework for automating web browser interactions, widely used for testing web applications. It supports multiple programming languages and browsers, enabling teams to write automated functional and regression tests.

Testing Automation Web Development
55
companies
18%
Envoy Established

Envoy is a high-performance, open-source edge and service proxy designed for cloud-native applications and microservice architectures. It provides advanced load balancing, observability, and traffic management features, and serves as the data plane for many service mesh implementations including Istio.

Envoy
54
companies
18%
Nexus Established

A repository manager that supports multiple artifact formats including Maven, npm, Docker, and more, enabling centralized storage and distribution of software components.

Repository Manager Artifact Management DevOps CI/CD
51
companies
17%
Apache Flink Established

A framework and distributed processing engine for stateful computations over unbounded and bounded data streams.

Stream Processing Big Data Distributed Computing Real-Time Analytics
50
companies
17%
Harbor Established

Open source cloud native registry that stores, signs, and scans container images for vulnerabilities

Container Registry Security Cloud Native Artifact Management
48
companies
16%
Django Optimizing

A high-level Python web framework that encourages rapid development and clean, pragmatic design. Django follows the model-template-views architectural pattern and includes an ORM, admin interface, and robust security features out of the box.

Python Web Framework Backend MVC ORM
48
companies
16%
Playwright Established

A framework for web testing and automation that enables reliable end-to-end testing for modern web apps across all browsers.

Testing Automation Web Development Browser Testing
47
companies
16%
HAMI Established

A platform or tool (insufficient context to provide detailed description)

Technology
45
companies
15%
JUnit Optimizing

JUnit is a widely used testing framework for Java applications that enables developers to write and run repeatable automated tests. It supports test-driven development with annotations, assertions, and test lifecycle management for ensuring code quality.

Java Testing Unit Testing
45
companies
15%
Copa Established

A causal reasoning evaluation dataset that tests models' ability to make plausible inferences about causes and effects by selecting the more plausible alternative for a given premise.

Benchmarks Causal Reasoning Common Sense
42
companies
14%
Puppet Established

Configuration management tool that automates the provisioning, configuration, and management of infrastructure using declarative language and model-driven approach.

Configuration Management Infrastructure As Code DevOps Automation
42
companies
14%
gRPC Developing

A high-performance, open-source universal RPC framework that uses HTTP/2 for transport, Protocol Buffers as the interface description language, and provides features such as authentication, bidirectional streaming and flow control, blocking or nonblocking bindings, and cancellation and timeouts.

RPC API Protocol Buffers HTTP/2 Microservices
41
companies
14%
NATS Developing

A high-performance, cloud-native messaging system for microservices, IoT, and edge computing. Provides pub-sub, request-reply, and queue-based messaging patterns with at-most-once and at-least-once delivery guarantees.

Message Broker Pub Sub Microservices Cloud Native IoT
40
companies
13%

A modern JavaScript framework from Salesforce for building fast, enterprise-grade web components on the Salesforce platform using web standards.

JavaScript Web Components Salesforce Frontend Framework
39
companies
13%
Jupyter Developing

Jupyter is a technology or concept used in computing and information technology to address specific technical challenges. It provides capabilities that help practitioners build, manage, or improve systems and processes in their domain.

Jupyter
37
companies
12%
eBPF Developing

eBPF (extended Berkeley Packet Filter) is a technology that allows programs to run in a sandboxed virtual machine within the Linux kernel without changing kernel source code or loading kernel modules. It enables high-performance networking, security monitoring, and observability capabilities at the operating system level with minimal overhead.

eBPF
36
companies
12%
Nginx Established

High-performance HTTP server and reverse proxy known for its stability, rich feature set, simple configuration, and low resource consumption.

Web Server Reverse Proxy Load Balancer HTTP Server
34
companies
11%
Eclipse Optimizing

An integrated development environment (IDE) used in computer programming, containing a base workspace and an extensible plug-in system for customizing the environment.

IDE Java Development Tools
34
companies
11%
Kibana Established

Open-source data visualization and exploration tool for Elasticsearch, providing search, analysis, and visualization capabilities through interactive dashboards and charts.

Data Visualization Analytics Monitoring Elasticsearch Dashboard
34
companies
11%
Blender Optimizing

Free and open-source 3D creation suite supporting modeling, animation, rendering, compositing, motion tracking, and video editing

3D Modeling Animation Rendering Open Source
34
companies
11%
Zot Developing

A decentralized communication protocol and platform for federated social networking, enabling secure and private content sharing across distributed servers.

Decentralized Social Networking Federation Privacy
33
companies
11%
Cucumber Established

Behavior-driven development (BDD) tool that allows writing tests in plain language using Gherkin syntax, enabling collaboration between technical and non-technical team members.

Testing BDD Automation Quality Assurance
33
companies
11%
Apache Tomcat Optimizing

Open-source implementation of Jakarta Servlet, Jakarta Server Pages, and other Jakarta EE specifications, providing a pure Java HTTP web server environment for running Java code.

Java Web Server Servlet Container Application Server
32
companies
10%
Hibernate Optimizing

Object-relational mapping framework for Java that simplifies database interactions by mapping Java objects to database tables

Java ORM Database Persistence JPA
32
companies
10%
Istio Developing

Open source service mesh that provides traffic management, security, and observability for microservices

Service Mesh Microservices Kubernetes Cloud Native
32
companies
10%
bootc Developing

A transactional, in-place operating system update system that operates on OCI/Docker container images as the source for OS updates

Container Images Operating Systems System Updates Infrastructure
30
companies
10%
Wireshark Optimizing

A free and open-source packet analyzer used for network troubleshooting, analysis, software and communications protocol development, and education.

Network Analysis Packet Capture Security Monitoring
30
companies
10%
OpenSearch Established

Open source search and analytics suite derived from Elasticsearch, providing distributed search and analytics capabilities with visualization through OpenSearch Dashboards. Organizations use it to track key metrics, identify trends, and optimize business outcomes.

Search Analytics Distributed Systems Open Source
29
companies
9%
Mockito Established

A mocking framework for unit tests in Java that allows creation of test double objects in automated unit tests for the purpose of test-driven development or behavior-driven development.

Java Testing Mocking Unit Testing
29
companies
9%
Kuma Developing

Universal control plane for service mesh built on Envoy proxy that can run on both Kubernetes and VMs across multiple clouds and platforms

Service Mesh Envoy Kubernetes Multi Cloud
27
companies
9%
Ubuntu Established

A popular open-source Linux distribution based on Debian, known for its ease of use and regular release cycle.

Operating System Linux Open Source Debian
27
companies
9%
Packer Established

Packer is an open-source tool by HashiCorp for creating identical machine images for multiple platforms from a single source configuration. It automates the creation of pre-configured virtual machine and container images, ensuring consistency across development, staging, and production environments.

Infrastructure As Code DevOps Automation Image Building
26
companies
8%
Apache JMeter Optimizing

Open-source Java application designed to load test functional behavior and measure performance of web applications and services

Performance Testing Load Testing Testing Java
26
companies
8%
Cortex Developing

An open-source platform for deploying, managing, and scaling machine learning models in production as APIs.

Machine Learning Model Deployment API MLOps Open Source
26
companies
8%
K3s Developing

Lightweight Kubernetes distribution designed for resource-constrained environments, edge computing, IoT devices, and CI/CD pipelines. K3s is a fully compliant Kubernetes distribution with a reduced memory footprint and simplified installation.

Kubernetes Container Orchestration Edge Computing DevOps Cloud Native
25
companies
8%
KCL Developing

KCL (Kusion Configuration Language) is a constraint-based record and functional programming language designed for configuration and policy scenarios. It provides features like type safety, automation, and validation for cloud-native configurations.

Configuration Language Policy As Code Cloud Native Infrastructure As Code
24
companies
8%
Appium Established

Open-source test automation framework for mobile applications supporting iOS, Android, and Windows apps with native, hybrid, and mobile web testing capabilities.

Mobile Testing Test Automation iOS Android Cross-Platform
24
companies
8%
Vineyard Developing

An in-memory metadata service for sharing, discovering, and accessing distributed objects in Python, developed for big data analytics workflows.

Distributed Systems Python Metadata Management Big Data In-Memory Storage
23
companies
7%
Kubeflow Pipelines Established

A platform for building and deploying portable, scalable machine learning workflows based on Docker containers

Machine Learning MLOps Orchestration Kubernetes Workflows
22
companies
7%
Pulumi Established

Infrastructure as Code platform that enables developers to define and manage cloud infrastructure using familiar programming languages like TypeScript, Python, Go, and C# instead of domain-specific languages.

Infrastructure As Code Cloud DevOps Automation
22
companies
7%
cURL Optimizing

A command-line tool and library for transferring data with URLs, supporting various protocols including HTTP, HTTPS, FTP, and more.

Command Line HTTP Client API Testing Data Transfer
22
companies
7%
Contour Developing

A Kubernetes ingress controller using Envoy proxy that provides dynamic configuration updates and advanced routing capabilities for managing external access to services in a cluster.

Kubernetes Ingress Controller Envoy Proxy Networking
22
companies
7%
Backstage Developing

An open platform for building developer portals, created by Spotify. Backstage unifies all your infrastructure tooling, services, and documentation to create a streamlined development environment.

Developer Portal Infrastructure Service Catalog Documentation Microservices
22
companies
7%
Capsule Developing

A CRM and project management tool designed for small businesses to manage contacts, tasks, and sales pipelines in one unified platform.

CRM Project Management Sales Contact Management
21
companies
7%
Spring Cloud Established

A suite of tools for building microservices and distributed systems with Spring Boot, providing patterns like service discovery, configuration management, circuit breakers, and API gateways.

Java Microservices Distributed Systems Cloud
20
companies
6%
YARN Developing

YARN is a fast, reliable package manager for JavaScript that was developed by Meta as an alternative to npm. It offers deterministic dependency resolution, offline caching, and parallel installation to provide faster and more consistent package management across development environments.

YARN
20
companies
6%
kpt Developing

A package-centric toolchain that enables a configuration authoring, automation, and delivery experience, which simplifies managing Kubernetes platforms and KRM-driven infrastructure at scale by utilizing resource configuration as the artifact of record.

Kubernetes Configuration Management Infrastructure as Code GitOps
19
companies
6%
Falco Developing

Cloud-native runtime security tool that detects unexpected application behavior and alerts on threats at runtime using eBPF

Security Runtime Security Cloud Native eBPF Threat Detection
19
companies
6%
Ratify Developing

A framework to verify artifacts and enforce policies in Kubernetes and other cloud-native environments, supporting supply chain security through signature and attestation verification.

Security Kubernetes Supply Chain Policy Enforcement Artifact Verification
18
companies
6%
Spring Data Established

Spring Data simplifies data access in Spring applications by providing a consistent programming model across relational and NoSQL databases. It reduces boilerplate code with repository abstractions, query derivation, and support for technologies like JPA, MongoDB, and Redis.

Java Framework Database ORM Data Access
18
companies
6%
SOPS Developing

Secrets OPerationS - A tool for managing secrets in configuration files by encrypting values while leaving keys unencrypted, supporting multiple key management services like AWS KMS, GCP KMS, Azure Key Vault, and PGP.

Security Encryption Secrets Management DevOps Configuration Management
17
companies
5%
Docker Swarm Established

Native clustering and orchestration solution for Docker containers that turns a pool of Docker hosts into a single virtual host.

Container Orchestration Clustering Docker DevOps
17
companies
5%
Hexa Developing

A collaborative data workspace platform that enables teams to explore, analyze, and share data insights together

Data Analytics Collaboration Data Workspace
16
companies
5%
Spring Security Established

A powerful and highly customizable authentication and access-control framework for Java applications, providing comprehensive security services for Spring-based enterprise applications.

Security Java Spring Authentication Authorization
16
companies
5%
Akri Developing

A Kubernetes resource interface for exposing leaf devices such as IP cameras and USB devices as resources in a Kubernetes cluster, enabling dynamic discovery and utilization of IoT edge devices.

Kubernetes IoT Edge Computing Device Management
15
companies
5%
OpenStack Established

Open source cloud computing platform for building and managing public and private clouds, providing infrastructure as a service (IaaS) through a set of interrelated services.

Cloud Platform Infrastructure As A Service Open Source Virtualization
15
companies
5%
Maven Central Established

The central repository for Maven artifacts, hosting Java libraries and dependencies for build automation and dependency management.

Java Package Manager Build Tools Dependency Management
14
companies
4%
Podman Established

Daemonless container engine for developing, managing, and running OCI Containers on Linux systems

Containers DevOps Virtualization
13
companies
4%
Spring Batch Established

A lightweight, comprehensive batch framework designed to enable the development of robust batch applications vital for the daily operations of enterprise systems.

Java Batch Processing Spring Framework Enterprise
13
companies
4%
Logstash Established

Open source server-side data processing pipeline that ingests data from multiple sources, transforms it, and sends it to a specified destination

Data Processing ETL Log Management Pipeline
13
companies
4%
Jaeger Developing

Open source, end-to-end distributed tracing system for monitoring and troubleshooting microservices-based architectures

Distributed Tracing Observability Monitoring Microservices
13
companies
4%
KServe Developing

A standard model inference platform on Kubernetes, built for highly scalable use cases. Provides performant, standardized inference protocol across ML frameworks including TensorFlow, PyTorch, scikit-learn, XGBoost, and more.

Machine Learning Kubernetes Model Serving Inference MLOps
12
companies
4%
JBoss Established

An open-source Java-based application server used for building and deploying enterprise Java applications. Now known as WildFly in its community version, it provides a robust platform for developing and running Java EE applications.

Application Server Java Enterprise Middleware
12
companies
4%
Linkerd Developing

Ultralight, security-first service mesh for Kubernetes. Provides observability, reliability, and security to cloud native applications without requiring code changes.

Service Mesh Kubernetes Observability Security Microservices
12
companies
4%
Koordinator Developing

A QoS-based scheduling system for hybrid workloads orchestration on Kubernetes, providing colocation, interference detection, and resource optimization capabilities

Kubernetes Scheduling Resource Management QoS Workload Orchestration
11
companies
3%
Zabbix Established

Open-source enterprise-class monitoring solution for networks, servers, virtual machines, and cloud services with distributed monitoring capabilities and web-based interface.

Monitoring Infrastructure Open Source Network Management Alerting
11
companies
3%
Apache Avro Established

A data serialization system that provides rich data structures, a compact binary format, and container files for storing persistent data. Avro uses JSON for defining data types and protocols, and serializes data in a compact binary format.

Data Serialization Binary Format Schema Evolution Big Data
11
companies
3%
Stacker Developing

A no-code platform for building custom business applications and workflows with data from multiple sources, featuring drag-and-drop interface builders and automated processes.

No-Code Low-Code Application Development Workflow Automation Database
10
companies
3%
NUnit Established

A unit-testing framework for all .NET languages with a focus on extensibility and parallel test execution

Testing .NET Unit Testing
10
companies
3%
Debian Developing

Debian is a technology or concept used in computing and information technology to address specific technical challenges. It provides capabilities that help practitioners build, manage, or improve systems and processes in their domain.

Debian
9
companies
3%
Interlink Developing

A virtual kubelet implementation that enables cross-cluster communication and resource sharing in Kubernetes, allowing pods in one cluster to access services in another cluster as if they were local.

Kubernetes Multi-Cluster Networking Service Mesh
8
companies
2%
KEDA Developing

Kubernetes Event Driven Autoscaling - application autoscaler that drives scaling of any container in Kubernetes based on the number of events needing to be processed

Kubernetes Autoscaling Event-Driven CNCF
7
companies
2%
Celery Established

Distributed task queue for Python that enables asynchronous job execution and scheduled tasks across multiple workers and brokers.

Python Task Queue Distributed Systems Background Jobs Asynchronous
7
companies
2%
Telepresence Developing

Fast local development for Kubernetes and OpenShift microservices. Routes traffic from your Kubernetes cluster to your local machine, allowing you to develop and debug services locally while connected to a remote cluster.

Kubernetes Development Tools Microservices Debugging
6
companies
2%
SpecFlow Established

BDD framework for .NET that uses Gherkin syntax to define application behavior in plain text. It enables collaboration between developers, testers, and business stakeholders by turning specifications into automated tests.

BDD Testing .NET Automation Gherkin
6
companies
2%
Crossplane Developing

Open source Kubernetes add-on that transforms your cluster into a universal control plane, enabling you to manage cloud infrastructure, services, and applications using Kubernetes-style declarative configuration

Infrastructure as Code Kubernetes Cloud Native Multi-Cloud Control Plane
6
companies
2%
OpenTofu Developing

Open-source infrastructure as code tool forked from Terraform, providing a community-driven alternative for provisioning and managing cloud infrastructure using declarative configuration files.

Infrastructure As Code DevOps Cloud Open Source
6
companies
2%
CRI O Developing

Lightweight container runtime for Kubernetes that implements the Kubernetes Container Runtime Interface (CRI) to enable using OCI compatible runtimes

Container Runtime Kubernetes OCI Cloud Native
5
companies
1%
Containerd Established

An industry-standard container runtime with an emphasis on simplicity, robustness and portability

Container Runtime Cloud Native Kubernetes Docker
5
companies
1%
Log4j Established

A Java-based logging utility framework that provides flexible logging capabilities for applications, allowing developers to control log output destinations, formats, and levels.

Java Logging Framework Apache
5
companies
1%
Ansible Playbooks Established

Declarative automation framework for configuration management, application deployment, and orchestration using YAML-based playbooks

Automation Configuration Management Infrastructure As Code DevOps
5
companies
1%
Apache HTTP Developing

Apache HTTP is a specialized technology or methodology in the apache domain that addresses specific technical or business requirements. It provides targeted capabilities that help practitioners and organizations solve problems and improve outcomes in their area of focus.

Apache HTTP
5
companies
1%
Thanos Developing

Open-source, highly available Prometheus setup with long-term storage capabilities that provides a global query view across multiple Prometheus servers.

Monitoring Observability Prometheus Time Series Database Metrics
5
companies
1%
TiKV Developing

A distributed transactional key-value database originally created to complement TiDB. It provides horizontal scalability, strong consistency, and high availability with support for ACID transactions.

Database Distributed Systems Key-Value Store ACID Open Source
5
companies
1%
Litmus Developing

Email testing and analytics platform that allows developers and marketers to preview, test, and analyze email campaigns across multiple email clients and devices before sending.

Email Testing Marketing Tools Quality Assurance Developer Tools
4
companies
1%
WebFlux Developing

Spring WebFlux is a reactive web framework built on Project Reactor that provides non-blocking, event-driven programming for building scalable web applications with support for backpressure and reactive streams.

Java Reactive Programming Spring Framework Web Framework Non-Blocking I/O
4
companies
1%
Kubernetes Services Established

An abstract way to expose an application running on a set of Pods as a network service in Kubernetes, providing stable networking endpoints and load balancing across pod replicas.

Kubernetes Container Orchestration Networking Load Balancing Service Discovery
4
companies
1%
Cilium Developing

eBPF-based networking, observability, and security for cloud native environments

Networking Security Kubernetes eBPF Service Mesh
3
companies
1%
Rundeck Established

Open source automation service with a web console, command line tools and a WebAPI. It lets you easily run automation tasks across a set of nodes.

Automation Orchestration Job Scheduler DevOps Infrastructure
3
companies
1%
Eclipse RDF4J Established

A powerful Java framework for processing and handling RDF data. This includes creating, parsing, scalable storage, reasoning and querying with RDF and Linked Data.

Java RDF Semantic Web Graph Database SPARQL
2
companies
0%
JMock Established

A Java library for mock objects supporting test-driven development with expectations that are defined as part of the test code

Java Testing Mocking
2
companies
0%
Kyverno Initial

Kubernetes native policy management engine for security, automation, and governance. Kyverno uses Kubernetes admission controllers to validate, mutate, and generate configurations using policies written as Kubernetes resources.

Policy Management Kubernetes Security Governance Cloud Native
2
companies
0%
Dragonfly Initial

A modern in-memory datastore built for performance and scalability, designed as a drop-in replacement for Redis and Memcached with improved efficiency and throughput.

Database In-Memory Cache Key-Value Store
2
companies
0%
Oxia Initial

A scalable metadata store and coordination service designed for distributed systems, providing strong consistency guarantees and high availability.

Metadata Store Coordination Service Distributed Systems Strong Consistency
1
companies
0%
PuTTY Established

A free and open-source terminal emulator, serial console and network file transfer application that supports various network protocols including SSH, Telnet, and rlogin.

SSH Client Terminal Emulator Remote Access Network Tools
1
companies
0%
Thymeleaf Established

Thymeleaf is a modern server-side Java template engine for generating HTML, XML, and other markup in web applications. It integrates seamlessly with Spring Framework and supports natural templating, allowing templates to be viewed directly in browsers.

Java Template Engine Server-Side Rendering
1
companies
0%
RocksDB Initial

RocksDB is a technology or concept used in computing and information technology to address specific technical challenges. It provides capabilities that help practitioners build, manage, or improve systems and processes in their domain.

RocksDB
1
companies
0%
Cartography Initial

Cartography is a technology or concept used in computing and information technology to address specific technical challenges. It provides capabilities that help practitioners build, manage, or improve systems and processes in their domain.

Cartography
1
companies
0%
Fluentd Initial

Open source data collector for unified logging layer that allows you to unify data collection and consumption for better use and understanding of data.

Logging Data Collection Open Source
1
companies
0%
Chaos Mesh Initial

A cloud-native chaos engineering platform that orchestrates chaos experiments on Kubernetes environments to test system resilience and reliability

Chaos Engineering Kubernetes Testing Resilience Cloud Native
1
companies
0%
KAITO Initial

Kubernetes AI Toolchain Operator - An operator that automates the AI/ML inference model deployment in a Kubernetes cluster

Kubernetes AI Machine Learning Operator Inference
1
companies
0%
KAgent Initial

An AI agent framework for building autonomous agents with knowledge integration and task execution capabilities

AI Agents Framework Autonomous Systems
1
companies
0%
Strimzi Initial

Kubernetes-native operator for running Apache Kafka on Kubernetes and OpenShift, providing simplified deployment, management, and configuration of Kafka clusters.

Kafka Kubernetes Operator Messaging Streaming
1
companies
0%
SPIFFE Initial

Secure Production Identity Framework for Everyone (SPIFFE) is a set of open-source standards for securely identifying software systems in dynamic and heterogeneous environments through platform-agnostic, cryptographic identities.

Security Identity Authentication Zero Trust Cloud Native
1
companies
0%
Perses Initial

An open-source monitoring and dashboarding tool designed as a modern alternative to Grafana, providing a simple and intuitive interface for visualizing time-series data with a focus on performance and extensibility.

Monitoring Dashboards Visualization Time Series Open Source
0
companies
0%
Ansible Roles Established

Reusable units of automation in Ansible that package tasks, variables, files, templates, and handlers into a standardized directory structure for organizing and sharing infrastructure as code.

Automation Infrastructure As Code Configuration Management DevOps
0
companies
0%
Spring Batch 5.1 Developing

Enterprise batch processing framework for the Spring ecosystem, providing reusable functions for processing large volumes of data including logging, transaction management, job processing statistics, job restart, skip, and resource management.

Batch Processing Spring Framework Java Enterprise
0
companies
0%
mod_perl Initial

mod_perl is a technology or concept used in computing and information technology to address specific technical challenges. It provides capabilities that help practitioners build, manage, or improve systems and processes in their domain.

mod_perl
0
companies
0%
mod_tcl Initial

mod_tcl is a technology or concept used in computing and information technology to address specific technical challenges. It provides capabilities that help practitioners build, manage, or improve systems and processes in their domain.

mod_tcl