Top RAR GitHub Repositories & Tools (2026)

JavaScript Testing utilities for React

Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.

A dead simple 2D game engine for Go

React Native UI library built on the Eva Design System: 30+ themeable, accessible components for iOS, Android and web. TypeScript, React 19 / RN 0.81, Eva and Material themes with runtime light/dark switching, on-demand style compilation.

Pure Go implementation of the WebRTC API

JSqlParser parses an SQL statement and translate it into a hierarchy of Java classes. The generated hierarchy can be navigated using the Visitor Pattern

Pagination library for Rails and other Ruby applications

Build your design system in React, Solid, Vue, Svelte or Vanilla. Powered by finite state machines

Virtual Python Environment builder

Code coverage for Ruby with a powerful configuration library and automatic merging of coverage across test suites

BookOrbit: Your Reading Space

PyMongo - the Official MongoDB Python driver

The most popular PHP library for use with the Twitter OAuth REST API.

Verify is a snapshot testing tool that simplifies the assertion of complex data models and documents.

Cryptography Toolkit

PHP Curl Class makes it easy to send HTTP requests and integrate with web APIs

Cross platform code coverage for .NET

Mirror of Apache PDFBox

MCP server for Wanderlog — build and edit trip itineraries through conversation

☕️⚡️TShock provides Terraria servers with server-side characters, anti-cheat, and community management tools.