Top HACK GitHub Repositories & Tools (2026)

💌 Build and send emails using React

An open and reliable container runtime

Your Friendly Open-Source Gen-AI Platform

The #1 AI Harness for Building Resumes, PDFs, Cover Letters & more, locally with 100+ LLMs support.

Fast and low overhead web framework, for Node.js

awesome game security [Welcome to PR]

📱 Nextcloud Android app

Flagsmith is an open-source feature flag platform with remote config, experimentation, and self-hosted or cloud deployment options.

Comprehensive 2026 OSINT guide — 450+ tools, AI intelligence, methodologies & ethics across 35 sections for investigation & threat intel.

A glossy Matrix collaboration client for the web.

.NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.

Concise, consistent, and legible badges in SVG and raster format

The Microsoft community Windows Package Manager manifest repository

An agent-native red-teaming workspace with a fast browser, direct HTTP traffic control, sandboxed execution, and auditable sessions. Pure Rust.

Open-source feature management platform

Open-source desktop and web app for Meta's Muse Code CLI. Runs Muse natively on Windows, macOS and WSL2, with a file viewer, inline diffs, approvals and signed auto-updating installers.

An open source re-implementation of RollerCoaster Tycoon 2 🎢

CNCF Jaeger, a Distributed Tracing Platform

TiDB is built for agentic workloads that grow unpredictably, with ACID guarantees and native support for transactions, analytics, and vector search. No data silos. No noisy neighbors. No infrastructure ceiling.

Mutation testing for .NET core and .NET framework!