Open Source Health & Support

Open source backend platform with Auth, Databases, Storage, Functions, and Messaging APIs

Instant GraphQL and REST APIs on new or existing databases with built-in auth and caching

Open source backend that can run on any Node.js environment with MongoDB or PostgreSQL

Open source Go backend in a single file with embedded database, auth, file storage, and admin UI

Open source Firebase alternative with Postgres, Auth, Storage, and Realtime

Unified batch and streaming data processing model supporting multiple execution engines

High-performance real-time analytical database for reporting, dashboards, and ad-hoc queries

High-performance real-time analytics database for sub-second queries on large datasets

Stateful stream processing framework for distributed data streams

Framework for distributed storage and processing of large data sets

Easy-to-use, powerful, and reliable system to process and distribute data

Realtime distributed OLAP datastore for low-latency queries on large-scale event data

Open source enterprise search platform built on Apache Lucene

Unified analytics engine for large-scale data processing

Modern, enterprise-ready business intelligence web application for data exploration and visualization

Distributed, RESTful search and analytics engine built on Apache Lucene

Lightning-fast, open source search engine with a focus on developer experience

Open source business intelligence tool for easy data visualization and self-serve analytics

Community-driven, open source search and analytics suite derived from Elasticsearch

High-performance analytical database for real-time and batch analytics with a MySQL-compatible interface

Fast distributed SQL query engine for federated queries across heterogeneous data sources

Open source, typo-tolerant search engine optimized for developer experience

Software project management and comprehension tool based on the concept of a project object model

Flexible, fast build automation tool supporting Java, Kotlin, Android, and multi-language projects

Next generation frontend tooling — fast dev server and optimized build

Static module bundler for modern JavaScript applications

Open source data platform wrapping any SQL database with a real-time REST and GraphQL API

Open source content management framework for building complex websites

Fiercely independent open source publishing platform for modern journalism and content creation

Open source headless commerce engine for building fast, customizable e-commerce applications

High-performance open source e-commerce platform built with Python, Django, and GraphQL

Leading open source headless CMS — fully customizable, developer-first content platform

Open source content management system powering over 40% of the web

High-performance, self-hosted newsletter and mailing list manager with an analytics dashboard

Open source WebRTC infrastructure for real-time audio, video, and data — scalable SFU server

Self-hosted, open source team messaging platform built for enterprise security and compliance

Open source mail delivery platform for self-hosting — a complete replacement for SendGrid or Mailgun

Open source communications platform for team messaging, video calling, and customer support

Threaded open source team chat app that combines the best of email threads with real-time messaging

Interactive web-based data visualizations from Python with D3.js-style output

Flexible parallel computing library for Python that scales NumPy, Pandas, and scikit-learn

SQL-first transformation workflow that converts raw data into analysis-ready models

Build and share machine learning demos and web apps with Python in minutes

Python tool for validating, documenting, and profiling data to maintain quality and integrity

Comprehensive library for creating static, animated, and interactive visualizations in Python

Fundamental package for scientific computing with Python

Fast, powerful, flexible and easy-to-use open source data analysis and manipulation tool

Interactive, open source graphing library for Python, R, and JavaScript

Lightning-fast DataFrame library implemented in Rust with a Python and Node.js API

Python library for Apache Arrow — high-performance columnar in-memory data and IPC

Open source library for mathematics, science, and engineering in Python

Statistical data visualization library built on matplotlib with a high-level interface

Fastest way to build and share data science and machine learning web apps in Python

Highly scalable, distributed NoSQL database for large datasets

Open source NoSQL document database with an HTTP API

Hadoop database — a distributed, scalable big data store

Native multi-model database with flexible document, graph, and key-value data models

Distributed PostgreSQL extension for multi-tenant and real-time analytics workloads

Column-oriented database management system for real-time analytics

Distributed SQL database with automatic scaling, failover, and geo-partitioning

Modern in-memory datastore, fully compatible with Redis and Memcached APIs

In-process SQL OLAP database management system for fast analytical queries

Open source time series database purpose-built for high-write-load metrics and events

High-performance multi-threaded Redis fork with up to 5x better throughput

Community-developed fork of MySQL with enhanced features

Open source vector database built for scalable similarity search and AI applications

The most popular NoSQL document-oriented database

The world's most popular open source relational database

Leading graph database management system for connected data

Serverless open source PostgreSQL with branching, autoscaling, and scale-to-zero

The world's most advanced open source relational database

High-performance vector database and search engine for AI applications

High-performance time series database with SQL extensions for IoT and financial data

An in-memory data structure store used as database, cache, and message broker

Embeddable persistent key-value store for fast storage, optimized for flash and RAM

NoSQL wide-column database compatible with Cassandra, engineered for high performance

Self-contained, serverless, zero-configuration relational database engine

Scalable, distributed, collaborative, document-graph database for the realtime web

Distributed SQL database with horizontal scalability and MySQL compatibility

Open source time-series SQL database built on PostgreSQL

Open source, in-memory data structure store — community-driven Redis fork

Database clustering system for horizontal scaling of MySQL

Open source vector database enabling semantic search and generative AI applications

High-performance, cloud-native distributed SQL database compatible with PostgreSQL and Cassandra

Lightweight database migration tool for SQLAlchemy — version your database schema changes

Safe, extensible ORM and query builder for Rust with compile-time query validation

TypeScript ORM with a focus on type safety, developer experience, and SQL-like syntax

Database migrations made easy — version control for your database with simple SQL or Java migrations

The fantastic ORM library for Golang with associations, hooks, and migrations

Open source database schema change management solution with version control for your database

Elegant MongoDB object modeling for Node.js with built-in type casting and validation

First-class persistence framework for Java with support for custom SQL, stored procedures, and advanced mappings

Next-generation ORM for Node.js and TypeScript with type-safe database access

Feature-rich ORM for Node.js supporting PostgreSQL, MySQL, MariaDB, SQLite, and MSSQL

Python SQL toolkit and Object Relational Mapper providing full SQL query flexibility

Async SQL toolkit for Rust providing compile-time checked queries and type-safe results

ORM for TypeScript and JavaScript that supports ActiveRecord and DataMapper patterns

Promise-based HTTP client for the browser and Node.js with interceptors and automatic transforms

Open source developer portal platform by Spotify for building internal developer tooling

Command line argument parser for Rust with derive macros and extensive help generation

Library for creating powerful CLI applications in Go — used by Kubernetes, GitHub CLI, and more

Self-hosted, lightweight software forge — a community-driven fork of Gitea

Painless self-hosted Git service and DevOps platform

Release automation tool for Go projects — cross-compile, package, sign, and publish releases

Google core Java libraries for collections, caching, I/O, concurrency, and string processing

Primitive and flexible state management for React based on an atomic model

Web-based interactive development environment for Jupyter notebooks, code, and data

Java annotation processor that generates boilerplate code like getters, setters, and builders

Simple, scalable state management for JavaScript based on transparent functional reactive programming

Open source notification infrastructure for developers — email, SMS, push, and in-app notifications

Open source project management software with Scrum, Kanban, Gantt charts, and time tracking

Data validation and settings management using Python type annotations

Automated dependency update tool — keeps your dependencies up-to-date across all ecosystems

Reactive Extensions for the JVM — composable asynchronous and event-based programs using observable sequences

Reactive Extensions Library for JavaScript — compose asynchronous and event-based programs

Fast high-level web crawling and scraping framework for Python

Serialization and deserialization framework for Rust — de-facto standard for JSON, YAML, TOML

Frontend workshop for building UI components and pages in isolation

Powerful data synchronization for web applications — server state management for React, Vue, and Svelte

Complete configuration solution for Go applications — supports 12-factor apps

Blazing fast, structured, leveled logging in Go — designed for high-throughput services

TypeScript-first schema declaration and validation library with static type inference

Small, fast, and scalable bearbones state management solution for React

Agentless IT automation platform for configuration management and deployment

Dynamic, real-time, high-performance API gateway built on Nginx and etcd

Centralized service for maintaining configuration, naming, and distributed synchronization

Declarative GitOps continuous delivery tool for Kubernetes

Concurrent, cache-efficient, and Dockerfile-agnostic builder toolkit for container images

Automatic TLS certificate management for Kubernetes from Let's Encrypt and other issuers

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

Industry-standard container runtime emphasizing simplicity, robustness, and portability

Fast and flexible DNS server and service discovery solution for cloud-native environments

Cloud-native control plane framework for composing infrastructure using Kubernetes APIs

Distributed Application Runtime — portable, event-driven runtime for distributed applications

Container platform enabling OS-level virtualisation for application packaging

Container-native continuous delivery platform powered by Docker

Cloud-native high-performance edge and service proxy

Distributed reliable key-value store for the most critical data of a distributed system

Kubernetes operator that integrates external secret management systems like AWS, GCP, and Vault

Secure, fast microVMs for serverless computing — enables running thousands of lightweight VMs

GitOps toolkit for keeping Kubernetes clusters in sync with source of truth

Application kernel for containers — provides a strong sandbox boundary between the container and host kernel

Open source cloud native registry for storing, signing, and scanning container images

Service networking platform for multi-cloud environments

Flexible workload orchestrator for containers and non-containerized applications

Machine image automation tool for creating identical images across multiple platforms

The package manager for Kubernetes

Open source service mesh that layers transparently onto existing distributed applications

Open source automation server for CI/CD pipelines

Lightweight certified Kubernetes distribution for IoT, edge, and resource-constrained environments

Lightweight VMs that transparently run container workloads inside hardware-isolated environments

Kubernetes-based Event Driven Autoscaling — scale any container based on event metrics

Run local Kubernetes clusters using Docker containers as nodes — for CI and local development

Kubernetes-based platform for deploying and managing serverless workloads with auto-scaling

Cloud-native, fast, and scalable API gateway and service mesh layer

Production-grade container orchestration

Kubernetes native configuration management — customize YAML configurations without templates

Ultralight, security-first service mesh for Kubernetes

Lightweight, reliable, and powerful distributed block storage for Kubernetes

Bare metal load-balancer for Kubernetes clusters using standard routing protocols

Open source infrastructure as code tool, community-driven fork of Terraform

Production process manager for Node.js with a built-in load balancer and zero-downtime reloads

Daemonless container engine for developing, managing, and running OCI containers

Open source systems monitoring and alerting toolkit

Kubernetes operator that simplifies deploying and managing Prometheus monitoring clusters

Infrastructure as code using real programming languages

Cloud-native storage orchestrator for Kubernetes, turning distributed storage systems into self-managing services

Encrypt Kubernetes secrets so they can safely be stored in version control

CLI tool for continuous development of Kubernetes applications — build, push, and deploy

Cloud-native CI/CD pipeline framework for Kubernetes

Infrastructure as code tool for provisioning and managing cloud resources

Dynamic, functional language designed for building scalable and maintainable applications on the Erlang VM

Open source programming language that makes it easy to build simple, reliable, and efficient software

Modern, concise, and safe programming language that is fully interoperable with Java

A programming language that lets you work quickly and integrate systems more effectively

Dynamic, open source programming language focused on simplicity and developer productivity

Language empowering everyone to build reliable and efficient software without a garbage collector

Strongly typed programming language that builds on JavaScript

HuggingFace library that enables any PyTorch code to run across distributed hardware seamlessly

Build, ship, and scale AI applications — unified model serving framework for any framework

State-of-the-art diffusion models for image, audio, and 3D generation — by HuggingFace

Open source feature store for machine learning — manage, serve, and share ML features

State-of-the-art machine learning models for NLP, vision, and audio tasks

Machine learning toolkit for Kubernetes enabling portable, scalable ML workflows

Framework for developing applications powered by language models

Fast, distributed, high-performance gradient boosting framework based on decision trees

Data framework for building LLM applications over custom data sources

Open source platform for the complete machine learning lifecycle

Platform for building Python programs to work with human language data and NLP tasks

Run large language models locally — Llama, Mistral, Gemma, and more on your hardware

Open standard for representing machine learning models enabling interoperability across frameworks

Open source computer vision and machine learning library with 2500+ optimized algorithms

Automatic hyperparameter optimization framework for machine learning

Open source machine learning framework for research and production

Unified framework for scaling AI and Python applications

Machine learning library for Python featuring classification, regression, and clustering

Python framework for state-of-the-art sentence, text, and image embeddings

Industrial-strength natural language processing library for Python and Cython

An end-to-end open source machine learning platform

High-throughput and memory-efficient LLM inference and serving engine

MLOps platform for experiment tracking, dataset versioning, and model management

Optimized distributed gradient boosting library for supervised machine learning

The most popular open source message broker from Apache

Distributed event streaming platform for high-performance data pipelines

Cloud-native, distributed messaging and streaming platform

Open source MQTT broker for IoT and lightweight messaging

The most scalable open source MQTT broker for IoT — connecting 100M+ devices

High-performance cloud native messaging system

Open source message broker with support for multiple messaging protocols

Kafka-compatible streaming data platform without ZooKeeper, built from scratch in C++

Declarative stream processor with 200+ connectors — formerly Benthos

Go library for working efficiently with message streams — Kafka, RabbitMQ, HTTP, and more

Asynchronous messaging library and concurrency framework for distributed applications

High-performance, open source universal RPC framework for any language and platform

Async event-driven network application framework for rapid development of high-performance servers

Bidirectional event-based communication library for real-time web applications

Container resource usage and performance characteristics monitoring daemon from Google

Horizontally scalable, highly available Prometheus implementation for long-term metrics storage

Ultra-fast, lightweight log processor and forwarder for Linux, macOS, Windows, and containers

Open source data collector for building a unified logging layer

Open source analytics and monitoring platform for all your data

OpenTelemetry Collector distribution with built-in Prometheus scraping and Loki log shipping

Horizontally scalable, multi-tenant log aggregation system inspired by Prometheus

High-scale distributed tracing backend that requires only object storage — pairs with Grafana

Open source distributed tracing platform for monitoring microservices

Service that generates metrics about the state of Kubernetes objects from the API server

Real-time performance and health monitoring for systems, containers, and applications

Cloud-native observability platform for logs, metrics, traces, and analytics with petabyte-scale storage

Observability framework for cloud-native software — traces, metrics, and logs

Open source continuous profiling for analysis of CPU and memory usage over time

Open source continuous profiling for finding performance bottlenecks in code

Open source application monitoring platform for error tracking and performance monitoring

Open source APM and observability platform — metrics, traces, and logs in a single pane

Plugin-driven server agent for collecting and reporting metrics from databases, systems, and IoT sensors

Highly available Prometheus setup with long-term storage capabilities

High-performance observability data pipeline for collecting, transforming, and routing logs and metrics

Fast, cost-effective and scalable monitoring solution and time series database

Enterprise-class open source distributed monitoring solution for networks and applications

Distributed tracing system to gather timing data for troubleshooting latency problems in microservices

Fast all-in-one JavaScript runtime, bundler, test runner, and package manager

Secure JavaScript and TypeScript runtime built on V8

JavaScript runtime built on Chrome's V8 JavaScript engine

Free and open-source implementation of the Java Platform

Async runtime for Rust providing the building blocks for writing reliable network applications

Open source authentication and authorization server with 2FA and SSO for web applications

Open source identity provider with SSO, MFA, and user enrollment flows

Free, open source software tool for automatically obtaining and renewing TLS certificates from Let's Encrypt

Static analysis tool for infrastructure as code — finds misconfigurations in Terraform, Kubernetes, and more

Container signing, verification, and storage in an OCI registry — part of the Sigstore project

Federated OpenID Connect provider acting as a portal to other identity providers

Cloud-native runtime security tool for detecting anomalous behavior in Kubernetes

Fast, lightweight tool for detecting secrets and sensitive information in git repositories

Vulnerability scanner for container images and filesystems with deep SBOM integration

Secrets management, data encryption, and identity-based access

Open source identity and access management with SSO, OAuth2, and OpenID Connect

Fast, customizable vulnerability scanner based on YAML templates for modern web applications

General-purpose policy engine that unifies policy enforcement across the stack

Static analysis tool for finding and fixing bugs, detecting vulnerabilities, and enforcing code standards

CLI tool and Go library for generating a Software Bill of Materials (SBOM) from container images

Comprehensive security scanner for containers, filesystems, and Kubernetes

Searches git repositories and code for high-entropy strings and over 700 secret types

Cloud-native identity platform with OIDC, OAuth 2.0, SAML, and passwordless authentication

Distributed, reliable, scalable object, block, and file storage for cloud-native environments

High-performance, S3-compatible object storage for cloud-native workloads

Premium message queue for Node.js and Python based on Redis — highly reliable job processing

Distributed task queue for Python, supporting async task execution

Simple, efficient background job processing for Ruby

Cloud-native chaos engineering platform for Kubernetes with fine-grained fault injection

Fast, easy and reliable testing for anything that runs in a browser

Expressive Go testing framework with BDD syntax, parallel execution, and rich output

Delightful JavaScript testing framework with a focus on simplicity

Open source load testing tool using JavaScript for performance and reliability testing

Open source chaos engineering platform for cloud-native environments with GitOps support

Scalable, distributed load testing tool where user behavior is defined in Python code

Feature-rich JavaScript test framework running on Node.js and in the browser

Reliable end-to-end testing for modern web apps across all browsers

Simple, feature-rich testing framework for Python

Behaviour-driven development framework for Ruby with readable, expressive test syntax

Browser automation framework for web application testing

Toolkit for Go testing with assertions, mocking, and test suite support

Blazing fast unit-test framework powered by Vite with first-class TypeScript support

Platform for building mobile and desktop web applications

Superheroic JavaScript MVW framework by Google (legacy; see Angular for v2+)

High power tools for HTML — access AJAX, CSS transitions, WebSockets and SSE via HTML attributes

The library for web and native user interfaces

Declarative, efficient, flexible JavaScript library for building user interfaces

Cybernetically enhanced web apps with a compiler-based approach

Progressive JavaScript framework for building user interfaces

Powerful, pragmatic, and extremely fast web framework for Rust

Fully featured MVC web framework for Node.js — batteries included with TypeScript first support

Async HTTP client/server framework for Python with support for WebSockets

Web framework optimised for building fast, content-focused websites with any UI component library

Ergonomic and modular web framework for Rust built on top of Tokio and Hyper

High-performance Go framework with MVC, ORM, caching, and session management built in

Lightweight, idiomatic, and composable HTTP router for building Go HTTP services

The web framework for perfectionists with deadlines

High performance, minimalist Go web framework

Reactive toolkit for building non-blocking, event-driven applications on the JVM

Ergonomic web framework for Bun with end-to-end type safety and exceptional performance

Fast, unopinionated, minimalist web framework for Node.js

Modern, fast web framework for building APIs with Python based on standard type hints

Fast and low overhead web framework for Node.js

Express-inspired web framework written in Go, built on Fasthttp

A lightweight WSGI web application framework for Python

Fast and minimalist HTTP web framework written in Go

Reference implementation of GraphQL for JavaScript, enabling flexible and efficient APIs

Rich framework for building applications and services in Node.js

Ultrafast, lightweight web framework for the Edges — runs on Cloudflare Workers, Deno, Bun, and Node.js

Expressive HTTP middleware framework for Node.js using async functions

PHP web application framework with expressive, elegant syntax

Flexible, lightweight ASGI framework for building high-performance APIs with Python

Modern, JVM-based full-stack framework for building modular, easily testable microservices

Progressive Node.js framework for building efficient, reliable server-side applications

React framework for production — full-stack web applications with server-side rendering

Intuitive Vue framework for building full-stack applications

Supersonic, subatomic Java — a Kubernetes-native Java stack tailored for GraalVM

Full stack web framework focused on web standards and fast user experiences

Web framework for Rust making it simple to write fast, type-safe, and secure web applications

Full-stack web application framework that ships with all tools needed to build great web apps

DSL for quickly creating web applications in Ruby with minimal effort

PHP micro framework that helps you quickly write simple yet powerful web applications and APIs

Framework for building production-ready Spring applications with minimal configuration

Lightweight ASGI framework/toolkit for building async web services in Python

The fastest way to build Svelte apps — full-stack with file-based routing and SSR

PHP framework for web and console applications, and a set of reusable components

Python web framework and asynchronous networking library for long polling and WebSockets

End-to-end typesafe APIs for TypeScript — no code generation, no runtime bloat

The world's most widely used web server, powering over 30% of active websites

Open source Java Servlet container and web server

Fast, multi-platform web server with automatic HTTPS

Python WSGI HTTP server for UNIX, a pre-fork worker model server

Reliable, high-performance TCP/HTTP load balancer and proxy server

High-performance HTTP server, reverse proxy, and IMAP/POP3 proxy server

Modern HTTP reverse proxy and load balancer for microservices

Lightning-fast ASGI server implementation for Python, supporting HTTP/1.1 and WebSockets

Light-weight workflow and Business Process Management platform for Java developers

Platform to programmatically author, schedule, and monitor workflows

Open source integration framework based on Enterprise Integration Patterns with 300+ connectors

Container-native workflow engine for orchestrating parallel jobs on Kubernetes

Open source workflow and decision automation platform based on BPMN and DMN standards

Data orchestration platform for machine learning, analytics, and ETL

Fair-code workflow automation tool with visual editor and 400+ integrations

Low-code event-driven programming tool for wiring together hardware, APIs, and online services

Modern workflow orchestration for data and ML pipelines

Open source workflow orchestration platform for running mission-critical code at scale

Open source developer platform for scripts, flows, and apps — self-hostable alternative to Retool