Top CAR GitHub Repositories & Tools (2026)

freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

Carplay on Android head unit using onboard mfi chip or via CH341.

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

Tiny post-quantum encryption for sensitive data. Write-only by design. ML-KEM-768 + X25519 + AES-256-GCM. Please break it.

Firefly III: a personal finances manager

Medplum is a healthcare platform that helps you quickly develop high-quality compliant applications.

Open source GPS tracking platform - self-hosted or managed, 200+ device protocols

C# application with primary purpose of farming Steam cards from multiple accounts simultaneously.

Self-hosted mail server for your own domain: SMTP/IMAP/POP3, CardDAV/CalDAV, React webmail and admin console, one-command Docker Compose.

Tech internships & CS jobs tracker - 180 open software engineering internships from 4,300 employer job boards, auto-updated every 30 min with visa-sponsorship and H-1B sponsor data.

A Home Assistant HACS integration that supports Kia Connect(Uvo) and Hyundai Bluelink. The integration supports the EU, Canada and the USA.

Open-source universal artifact registry. Drop-in Artifactory/Nexus alternative with 40+ package formats, security scanning, WASM plugins, and edge replication.

The most popular open source electronic health records and medical practice management solution.

Cloud-native high-performance edge/middle/service proxy

The open-source observability database. One columnar engine for metrics, logs, and traces, on object storage.

Headless open-source eCommerce platform on top of PHP/Symfony/API Platform

Domain-driven e-commerce for Django

Zammad is a web based open source helpdesk/customer support system.

background code checker

Render OG images and paged PDFs from JSX, HTML, and CSS. No headless browser. Runs on Node.js, Cloudflare Workers, browsers, and Rust.