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

The Kubernetes Package Manager

The Ethereum Improvement Proposal repository

Topic Modelling for Humans

The source code that powers readthedocs.org

Apache OpenWhisk is an open source serverless cloud platform

:satellite: :cloud: :notes:Airsonic, a Free and Open Source community driven media server (fork of Subsonic and Libresonic)

📘 OpenAPI/Swagger-generated API Reference Documentation

The Web framework for perfectionists with deadlines.

The Swiss Army Knife of Vector Graphics Scripting – Scriptographer ported to JavaScript and the browser, using HTML5 Canvas. Created by @lehni & @puckey

Official vibe.d development

Multi functional app to find duplicates, empty folders, similar images etc.

An open-source C++ library developed and used at Facebook.

A privacy-aware, distributed, open source social network.

Angular powered Bootstrap

Canonical actor model implementation for .NET with local + distributed actors in C# and F#.

An interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers.

Accessibility engine for automated Web UI testing

Slick (Scala Language Integrated Connection Kit) is a modern database query and access library for Scala

Automatically generate RESTful API documentation with Swagger 2.0 for Go.

Shōgun

SimTK OpenSim C++ libraries and command-line applications, and Java/Python wrapping.

[mirror] A Tour of Go

:rocket:  A fully-featured, production ready caching GraphQL client for every UI framework and GraphQL server.

Ember.js - A JavaScript framework for creating ambitious web applications

H2 is an embeddable RDBMS written in Java.

Meshtastic device firmware

Apache Traffic Server™ is a fast, scalable and extensible HTTP/1.1 and HTTP/2 compliant caching proxy server.

📇 Contacts app for Nextcloud

:penguin: The immutable Linux meta-distribution for edge Kubernetes.

Build resilient language agents as graphs.

Ever® Gauzy™ - Open Business Management Platform (ERP/CRM/HRM/ATS/PM) - https://gauzy.co

Linear algebra library for Rust.

Multi-Dimensional charting built to work natively with crossfilter rendered with d3.js

A static analyzer for Java, C, C++, and Objective-C

Ivy - a generic completion frontend for Emacs, Swiper - isearch with an overview, and more. Oh, man!

Perkeep (née Camlistore) is your personal storage system for life: a way of storing, syncing, sharing, modelling and backing up content.

Creating delicious APIs for Django apps since 2010.

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

Magnificent app which corrects your previous console command.

A cross-platform GUI library for Rust, inspired by Elm

Open Source Continuous File Synchronization

Skip YouTube video sponsors (browser extension)

Tantivy is a full-text search engine library inspired by Apache Lucene and written in Rust

:lipstick: Universal beautification package for Atom editor

a react-based framework that provides accessibility, modularity, responsiveness, and theming in a tidy package

TensorZero creates a feedback loop for optimizing LLM applications — turning production data into smarter, faster, and cheaper models.

A runtime for writing reliable asynchronous applications with Rust. Provides I/O, networking, scheduling, timers, ...

A powerful all-in-one bot for Twitch streamers