Top CAR GitHub Repositories & Tools (2026)

A code coverage tool for Rust projects

DAVx⁵ is an open-source CalDAV/CardDAV suite and sync app for Android. You can also access your online files (WebDAV) with it.

dnsx is a fast and multi-purpose DNS toolkit allow to run multiple DNS queries of your choice with a list of user-supplied resolvers.

Search Engine Optimization (SEO) for Ruby on Rails applications.

🔥 HAPI FHIR - Java API for HL7 FHIR Clients and Servers

XMage - Magic Another Game Engine

Riding carousels with jQuery.

Light weight tool for detecting the current device and screen size written in swift.

Self-hosted collaborative plant management and tracking system for plant enthusiasts

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

E-commerce platform built with ASP.NET Core using MongoDB for NoSQL storage

The Firefly III Data Importer can import data into Firefly III

🗓 A modern, simple, feature-packed, fully translatable admin interface for sabre/dav based on Symfony 7 and Bootstrap

A library to train, evaluate, interpret, and productionize decision forest models such as Random Forest and Gradient Boosted Decision Trees.

Linux desktop control over MCP — AT-SPI, GNOME Shell, Wayland portals, ydotool

Mapping the information system / Cartographie du système d'information

Offline-first workout tracker for strength and cardio, with progress graphs, rest timers, and custom themes. Built with Flutter.

JL is a program for looking up Japanese words and expressions.

Tsugi Admin, Developer, and Management Console (pls join the dev list)

Various tools, trinkets and experiments