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

Google core libraries for Java

The repository for high quality TypeScript type definitions.

Open Source Web Application Framework for ASP.NET Core. Offers an opinionated architecture to build enterprise software solutions with best practices on top of the .NET and the ASP.NET Core platforms. Provides the fundamental infrastructure, production-re

OpenToonz - An open-source full-featured 2D animation creation software

Adds static typing to JavaScript to improve developer productivity and code quality.

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

🗨️ Nextcloud Talk – chat, video & audio calls for Nextcloud

The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. With Cloud, Local and Git storage.

The Prometheus monitoring system and time series database.

KeePassXC is a cross-platform community-driven port of the Windows application “Keepass Password Safe”.

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

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.

Bears for coala

Bitcoin Core integration/staging tree

🐉 Vue Component Framework

Fluent UI web represents a collection of utilities, React components, and web components for building web applications.

c-lightning — a Lightning Network implementation in C

lichess.org mobile application

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

Generate Go client and server boilerplate from OpenAPI 3 specifications

The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.

The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.

Open-source JavaScript charting library behind Plotly and Dash

E2E test framework for Angular apps

Where programmers share ideas and help each other grow

Terraform Pull Request Automation

For empowering community 🌱

opam is a source-based package manager. It supports multiple simultaneous compiler installations, flexible package constraints, and a Git-friendly development workflow.

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

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

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

music library manager and MusicBrainz tagger

An open source time-series database for fast ingest and SQL queries

Promise based HTTP client for the browser and node.js

Global Extensible Open Power Manager

An open source trusted cloud native registry project that stores, signs, and scans content.

🍱 Kanban-style project & personal management tool for Nextcloud, similar to Trello

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

Free and open-source social network for active citizenship.

Azure WebJobs SDK

🎒 Next level crypto wallet

Main Liquibase Source

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

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

An extensible media player for Android

OpenTelemetry Collector

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.

the package manager for JavaScript

Grow Open Source

The FRRouting Protocol Suite