Stop paying $200/mo for SaaS. Self-host for $5.

Independent technology for modern publishing, memberships, subscriptions and newsletters.

A docker-powered PaaS that helps you build and manage the lifecycle of applications

Mautic: Open Source Marketing Automation Software.

Open source home automation that puts local control and privacy first.

Your self-hosted, globally interconnected microblogging community

Open source self-hosted web archiving. Takes URLs/browser history/bookmarks/Pocket/Pinboard/etc., saves HTML, JS, PDFs, media, and more...

Open source, privacy-first web analytics. Lightweight, cookie-free Google Analytics alternative. Self-hosted or cloud.

The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.

Apache Superset is a Data Visualization and Data Exploration Platform

A glossy Matrix collaboration client for the web.

Rallly is an open-source scheduling and collaboration tool designed to make organizing events and meetings easier.

The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation

An open-source, self-hostable PaaS alternative to Vercel, Heroku & Netlify that lets you easily deploy static sites, databases, full-stack applications and 280+ one-click services on your own servers.

Apache Airflow - A platform to programmatically author, schedule, and monitor workflows

The Secure CommsOS™ for mission-critical operations

The open-source communication infrastructure for agents and products

Build your personal knowledge base with Trilium Notes

Build your personal knowledge base with Trilium Notes

Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

Empowering People Ethically, Matomo is hiring! Join us → https://matomo.org/jobs Matomo is the leading open-source alternative to Google Analytics, giving you complete control and built-in privacy. Easily collect, visualise, and analyse data from websites & apps. Star us on GitHub ⭐ - Pull Requests welcome!

A simple server for sending and receiving messages in real-time per WebSocket. (Includes a sleek web-ui)

A decentralised discussion platform for communities.

wallabag is a self hostable application for saving web pages: Save and classify articles. Read them later. Freely.

A completely free and open interplanetary-microblogging platform

Sentry, feature-complete and packaged up for low-volume deployments and proofs-of-concept

High performance self-hosted photo and video management solution.

A high-throughput and memory-efficient inference and serving engine for LLMs

The easy-to-use open source Business Intelligence and Embedded Analytics tool that lets everyone work with data

Make videos programmatically with React

A privacy-first, self-hosted, fully open source personal knowledge management software, written in typescript and golang.

Nextcloud server, a safe home for all your data

Send push notifications to your phone or desktop using PUT/POST

Event Driven Orchestration & Scheduling Platform for Mission Critical Applications

AI Agents & MCPs & AI Workflow Automation • (~400 MCP servers for AI agents) • AI Automation / AI Agent with MCPs • AI Workflows & AI Agents • MCPs for AI Agents

Accelerate your web app development | Build fast. Run fast.

Apprise - Push Notifications that work with just about every platform!

Node.js based forum software built for the modern web

A JavaScript Framework for Building Brilliant Applications

SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps !

Dolibarr ERP CRM is a modern software package to manage your company or foundation's activity (contacts, suppliers, invoices, orders, stocks, agenda, accounting, ...). it's an open source Web application (written in PHP) designed for businesses of any sizes, foundations and freelancers.

‎ Modern, responsive, cross-platform, self-hosted web IRC client

A fast, highly extensible, and event driven SMTP server

A simple CalDAV (calendar) and CardDAV (contact) server.

Mail hosting made simple

Keep passwords and other sensitive information out of your chat logs and inboxes.

Ech0 - An open-source, self-hosted lightweight publishing platform for personal idea sharing.

Connect suppliers, distributors and consumers to trade local produce.

Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.

An enterprise-class UI design language and React UI library

Code at the speed of thought - Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.

The Full-Stack Vue Framework.

Ultralytics YOLO

Git with a cup of tea! Painless self-hosted all-in-one software development service, including Git hosting, code review, team collaboration, package registry and CI/CD

The Free Software Media System - Server Backend & API

Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more

Scheduling infrastructure for absolutely everyone.

A community-supported supercharged document management system: scan, index and archive all your documents

Express inspired web framework written in Go

DuckDB is an analytical in-process SQL database management system

SigNoz is an open-source observability platform native to OpenTelemetry with logs, traces and metrics in a single application. An open-source alternative to DataDog, NewRelic, etc. . Open source Application Performance Monitoring (APM) & Observability tool

Free and open source laravel eCommerce platform

Firefly III: a personal finances manager

matplotlib: plotting with Python

Your window into all of your data

Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, Llama, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI and Anthropic.

Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container.

All-in-one Mail & Collaboration server. Secure, scalable and fluent in every protocol (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV).

A very fast and expressive template engine.

Typebot is a powerful chatbot builder that you can self-host.

A complete web conferencing system for virtual classes and more!

An Application dashboard and launcher

Countly is a privacy-first, AI-powered analytics and engagement platform for understanding and optimizing customer journeys across digital applications, from desktop and mobile to IoT and connected environments.

Your platform team, as a service

Local-first workflow engine with a Web UI for small teams. Define DAGs in a declarative YAML format. Self-contained and no DBMS required. Use any AI agent to manage your DAGs.

Movim - Decentralized social platform

GlobaLeaks is a free and open-source whistleblowing software enabling anyone to easily set up and maintain a secure reporting platform.

Desk sharing, room reservation, free seating, and co-working for enterprises

An Open Source Machine Learning Framework for Everyone

An open-source remote desktop application designed for self-hosting, as an alternative to TeamViewer.

Next generation frontend tooling. It's fast!

There can be more than Notion and Miro. AFFiNE(pronounced [ə‘fain]) is a next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, open-source, customizable and ready to use.

A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows for loading parts of the application on demand. Through "loaders", modules can be CommonJs, AMD, ES6 modules, CSS, Images, JSON, Coffeescript, LESS, ... and your custom stuff.

The Cloud Native Application Proxy

The Cloud Native Application Proxy

Open-source, self-hosted note-taking tool built for quick capture. Markdown-native, lightweight, and fully yours.

The web framework for content-driven websites. ⭐ Star to support our work!

Joplin - the privacy-focused note taking app with sync capabilities for Windows, macOS, Linux, Android and iOS.

The open alternative to Salesforce, designed for AI.

The zero configuration build tool for the web.

Babel is a compiler for writing next generation JavaScript.

Spacedrive is an open source cross-platform file explorer, powered by a virtual distributed filesystem written in Rust.

Enhanced ChatGPT Clone: Features Agents, MCP, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral, OpenRouter, Vertex AI, Gemini, Artifacts, AI model switching, message search, Code Interpreter, langchain, DALL-E-3, OpenAPI Actions, Functions, Secure Multi-User Auth, Presets, open-source for self-hosting. Active.

The ultimate agentic social media scheduling tool

The fundamental package for scientific computing with Python.

MongoDB object modeling designed to work in an asynchronous environment.

Find and fix problems in your JavaScript code.

Practical functional Javascript

Cross-platform Rust rewrite of the GNU coreutils

Super Productivity is an advanced todo list app with integrated Timeboxing and time tracking capabilities. It also comes with integrations for Jira, GitLab, GitHub and Open Project.

Asynchronous HTTP client/server framework for asyncio and Python

Release engineering, simplified

SciPy library main repository

A hyperparameter optimization framework

Super Simple WYSIWYG Editor

Take control over your live stream video by running it yourself. Streaming + chat out of the box.

Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably, socket.io, Phoenix.PubSub, SignalR. Set up once and forever.

Open-source cron job and background task monitoring service, written in Python & Django

Photo Sharing. For Everyone.

Open Source Inventory Management System

Web based localization tool with tight version control integration.

ZoneMinder is a free, open source Closed-circuit television software application developed for Linux which supports IP, USB and Analog cameras.

Catch API bugs before your users do

Loomio is a collaborative decision making tool

The Modern And Developer Centric Python Web Framework. Be sure to read the documentation and join the Discord channel for questions: https://discord.gg/TwKeFahmPZ

Live Helper Chat - live support for your website. Featuring web and mobile apps, Voice & Video & ScreenShare. Supports Telegram, Twilio (whatsapp), Facebook messenger including building a bot.

The civilized way to write REST API clients for iOS / macOS

Self-hosted, open-source dashboard for your sports and fitness data

A high-performance Internet Relay Chat (IRCv3) server for UNIX-like and Windows systems

Monorepo for Mozilla Accounts (formerly Firefox Accounts)

This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/core

The React Framework

User-friendly AI Interface (Supports Ollama, OpenAI API, ...)

Production-Grade Container Scheduling and Management

JavaScript 3D Library.

Promise based HTTP client for the browser and node.js

FastAPI framework, high performance, easy to learn, fast to code, ready for production

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

The fastest path to AI-powered full stack observability, even for lean teams.

scikit-learn: machine learning in Python

Easy to maintain open source documentation websites.

A black hole for Internet advertisements

Appwrite® - complete cloud infrastructure for your web, mobile and AI apps. Including Auth, Databases, Storage, Functions, Messaging, Hosting, Realtime and more

PDF Reader in JavaScript

Prettier is an opinionated code formatter.

Delightful JavaScript Testing.

PostHog is an all-in-one developer platform for building successful products. We offer product analytics, web analytics, session replay, error tracking, feature flags, experimentation, surveys, data warehouse, a CDP, and an AI product assistant to help debug your code, ship features faster, and keep all your usage and customer data in one stack.

Free and Open Source Enterprise Resource Planning (ERP)

The world's most flexible commerce platform.

SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables, designed to handle billions of files with O(1) disk access and effortless horizontal scaling.

Jitsi Meet - Secure, Simple and Scalable Video Conferences that you use as a standalone app or embed in your web application.

A local-first personal finance app

End-to-end encrypted cloud for everything.

A self-hostable personal dashboard built for you. Includes status-checking, widgets, themes, icon packs, a UI editor and tons more!

Personal CRM. Remember everything about your friends, family and business relationships.

Dolt - Git for Data

High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.

A collection of high-performance JavaScript tools.

Fast linters runner for Go

UVdesk Open Source Community Helpdesk is a comprehensive ticketing support system designed for everyone, offering robust features to streamline customer support and collaboration.

Etherpad: A modern really-real-time collaborative document editor.

Topic Modelling for Humans

Topic Modelling for Humans

Create web-based user interfaces with Python. The nice way.

A package manager for the web

ActivityPub-federated video streaming platform using P2P directly in your web browser

Apache Druid: a high performance real-time analytics database.

Next-generation full-text search library for Browser and Node.js

Python Imaging Library (fork)

Project has been discontinued ////// Mailchimp Open Commerce is an API-first, headless commerce platform built using Node.js, React, GraphQL. Deployed via Docker and Kubernetes.

Mealie is a self hosted recipe manager and meal planner with a RestAPI backend and a reactive frontend application built in Vue for a pleasant user experience for the whole family. Easily add recipes into your database by providing the url and mealie will automatically import the relevant data or add a family recipe with the UI editor

TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Supports MongoDB, MySQL, MariaDB, MS SQL Server, PostgreSQL and SQLite/libSQL databases.

A beautiful, powerful, self-hosted rom manager and player.

Open source headless commerce framework built with TypeScript, NestJS, React and GraphQL

The SimpleLogin back-end and web app

solar charging

StackStorm (aka "IFTTT for Ops") is event-driven automation for auto-remediation, incident responses, troubleshooting, deployments, and more for DevOps and SREs. Includes rules engine, workflow, 160 integration packs with 6000+ actions (see https://exchange.stackstorm.org) and ChatOps. Installer at https://docs.stackstorm.com/install/index.html

Centralized network visibility and continuous asset discovery. Monitor devices, detect change, and stay aware across distributed networks.

⟁ Tendermint Core (BFT Consensus) in Go

Universal API for request permission and get its statuses.

The Restreamer is a complete streaming server solution for self-hosting. It has a visually appealing user interface and no ongoing license costs. Upload your live stream to YouTube, Twitch, Facebook, Vimeo, or other streaming solutions like Wowza. Receive video data from OBS and publish it with the RTMP and SRT server.

Orchestrate end-to-end encryption, cryptographic identities, mutual authentication, and authorization policies between distributed applications - at massive scale.

Command line driven CI frontend and development task automation tool.

The free and open-source Download Manager written in pure Python

Accelerated deep learning R&D

The extensible chat client.

Build apps that AI can generate, humans can review, and teams can maintain. Config that works between code and natural language.

Opinionated email server

GO Feature Flag is a simple, complete and lightweight self-hosted cloud native feature flag solution 100% Open Source.

Get seamless remote access to any Linux device. Centralized SSH for the edge and cloud computing

MongooseIM is Erlang Solutions' robust, scalable and efficient XMPP server, aimed at large installations. Specifically designed for enterprise purposes, it is fault-tolerant and can utilise the resources of multiple clustered machines.

Go package implementing bitsets

Simple and fast databaseless PHP blogging platform, and Flat-File CMS

MyBB is a free and open source forum software.

One-Time-Secret sharing platform with a symmetric 256bit AES encryption in the browser

A CalDAV/CardDAV server backed by Git

Vapor provider for RediStack

Your own personal AI assistant. Any OS. Any Platform. The lobster way.

Transformers: the model-definition framework for state-of-the-art machine learning models in text, vision, audio, and multimodal models, for both inference and training.

A modern runtime for JavaScript and TypeScript.

Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS

The Prometheus monitoring system and time series database.

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

Penpot: The open-source design tool for design and code collaboration

LocalAI is the open-source AI engine. Run any model - LLMs, vision, voice, image, video - on any hardware. No GPU required.

LocalAI is the open-source AI engine. Run any model - LLMs, vision, voice, image, video - on any hardware. No GPU required.

A refreshingly simple data-driven game engine built in Rust

React Hooks for form state management and validation (Web + React Native)

Everything is RSSible