Help out your favorite open source projects and become a better developer while doing it.

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

🐠 Babel is a compiler for writing next generation JavaScript.

A flexible level editor

Flexible level editor

Payload is the open-source, fullstack Next.js framework, giving you instant backend superpowers. Get a full TypeScript backend and admin panel instantly. Use Payload as a headless CMS or for building powerful applications.

Collection of handy online tools for developers, with great UX.

3D plotting and mesh analysis through a streamlined interface for the Visualization Toolkit (VTK)

Dify is an open-source LLM app development platform. Dify's intuitive interface combines AI workflow, RAG pipeline, agent capabilities, model management, observability features and more, letting you quickly go from prototype to production.

Make Your Company Data Driven. Connect to any data source, easily visualize, dashboard and share your data.

The Serenity Operating System 🐞

Bitcoin Core integration/staging tree

Cloud-native search engine for observability. An open-source alternative to Datadog, Elasticsearch, Loki, and Tempo.

Vagrant is a tool for building and distributing development environments.

Vagrant is a tool for building and distributing development environments.

🎧 Open source music client! Available for both desktop & mobile!

Self-hosted photo and video backup solution directly from your mobile phone.

BizHawk is a multi-system emulator written in C#. BizHawk provides nice features for casual gamers such as full screen, and joypad support in addition to full rerecording and debugging tools for all system cores.

Cross-platform Rust rewrite of the GNU coreutils

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

The Markdown-based note-taking app that doesn't suck.

Apache Maven core

One framework for creating powerful cross-platform games.

Google core libraries for Java

Global Extensible Open Power Manager

Making Docker and Kubernetes management easy.

:speech_balloon: A community-driven python bot that aims to be as simple as possible to serve humans with their everyday tasks

The Wikimedia Commons Android app allows users to upload pictures from their Android phone/tablet to Wikimedia Commons

Modin: Scale your Pandas workflows by changing a single line of code

A query builder for PostgreSQL, MySQL and SQLite3, designed to be flexible, portable, and fun to use.

Microsoft Azure SDK for JavaScript (NodeJS & Browser)

Open Standard for Metadata. A Single place to Discover, Collaborate and Get your data right.

A fancy self-hosted monitoring tool

Federated (ActivityPub) video streaming platform using P2P (BitTorrent) directly in the web browser with WebTorrent and Angular.

Create agents that monitor and act on your behalf. Your agents are standing by!

Theano is a Python library that allows you to define, optimize, and evaluate mathematical expressions involving multi-dimensional arrays efficiently. It can use GPUs and perform efficient symbolic differentiation.

Create agents that monitor and act on your behalf. Your agents are standing by!

SVG icons for popular brands

lichess.org mobile application

SeaweedFS is a fast distributed storage system for blobs, objects, files, and data lake, for billions of files! Blob store has O(1) disk seek, cloud tiering. Filer supports Cloud Drive, cross-DC active-active replication, Kubernetes, POSIX FUSE mount, S3

Bears for coala

The FRRouting Protocol Suite

OpenTelemetry Collector

The repository for high quality TypeScript type definitions.

Quasar Framework - Build high-performance VueJS user interfaces in record time

Main Liquibase Source

E2E test framework for Angular apps

🚀 10x easier, 🚀 140x lower storage cost, 🚀 high performance, 🚀 petabyte scale - Elasticsearch/Splunk/Datadog alternative for 🚀 (logs, metrics, traces, RUM, Error tracking, Session replay).

The core OCaml system: compilers, runtime system, base libraries

Highcharts JS, the JavaScript charting framework