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

A code-searching tool similar to ack, but faster.

The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis

DNS over HTTPS / DNS over Tor / DNSCrypt client, WireGuard proxifier, firewall, and connection tracker for Android.

The Python Package Index

awesome window manager

Official haskell ide support via language server (LSP). Successor of ghcide & haskell-ide-engine.

GNU Radio – the Free and Open Software Radio Ecosystem

Data Apps & Dashboards for Python. No JavaScript Required.

Warzone 2100 - a free and open source real time strategy game.

Cross-platform framework for building truly native mobile apps with Java or Kotlin. Write Once Run Anywhere support for iOS, Android, Desktop & Web.

:zap: Universal Workflow Orchestration Platform — Code in any language, run anywhere. 900+ plugins for data, infrastructure, and AI automation.

Penpot - The Open-Source design & prototyping platform

Generate types and converters from JSON, Schema, and GraphQL

The Ruby Programming Language

Apache Iceberg

Python package for earth-observing satellite data processing

Graphical Java application for managing BibTeX and BibLaTeX (.bib) databases

Ruby enVironment Manager (RVM)

Ruby enVironment Manager (RVM)

An implementation of chunked, compressed, N-dimensional arrays for Python.

Open-source keyboard firmware for Atmel AVR and Arm USB families

Automatically generates Rust FFI bindings to C (and some C++) libraries.

Foundry is a blazing fast, portable and modular toolkit for Ethereum application development written in Rust.

Free and open source manga reader for Android

A SwiftUI Mastodon client

Data validation using Python type hints

Support for adding OAuth1(a) and OAuth2 features (consumer and provider) for Spring web applications.

Web based translation tool with tight version control integration.

A super fast Graph Database uses GraphBLAS under the hood for its sparse adjacency matrix graph representation. Our goal is to provide the best Knowledge Graph for LLM (GraphRAG).

:leaves: JavaScript library for mobile-friendly interactive maps

Dapper - a simple object mapper for .Net

A scalable, distributed Time Series Database.

A cross-platform, linkable library implementation of Git that you can use in your application.

An open and reliable container runtime

The user-friendly command line shell.

Yii 2: The Fast, Secure and Professional PHP Framework

光 HikariCP・A solid, high-performance, JDBC connection pool at last.

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

Erlang/OTP

Background Music, a macOS audio utility: automatically pause your music, set individual apps' volumes and record system audio.

Make your first PR! ~ A beginner-friendly repository. Add your profile, a blog, or any program under any language (it can be anything from a hello-world program to a complex data structure algorithm) or update the existing one. Just make sure to add the f

GenAI Agent Framework, the Pydantic way

Spring Boot

Metasploit Framework

Confluent's Apache Kafka .NET client

Oni: Modern Modal Editing - powered by Neovim

Modern CSS framework based on Flexbox

A virtual machine for executing programs written in Hack.