Top TESTING GitHub Repositories & Tools (2026)

🐛 Advanced web vulnerability scanner with 5-rule false-positive reduction, WAF evasion, and modern HTML reports

Verifiable multi-agent patch evaluation infrastructure

PHP Static Analysis Tool - discover bugs in your code without running it!

Free, open-source TradingView strategy optimizer for Chrome. Grid search, walk-forward, heatmaps. By Roboquant.

Generate replayable Excel test cases from live browser pages, or run existing Excel cases, using Playwright and local Laya or a compatible decision API.

Fast, easy and reliable testing for anything that runs in a browser.

A disposable copy of your production stack for every pull request: masked Postgres, contained third-party APIs, and agents that use your app like people.

Android emulator & ADB GUI for Mac: dark mode, font size, RTL, TalkBack, network, GPS, Layout Inspector in dp. Built-in MCP server lets Claude Code, Codex and Cursor drive the emulator.

SMX · an open-source crypto paper-trading desk. Backtest farm, walk-forward optimizer, built-in AI agent, 110 exchanges, schema v2 strategies.

Ruby interface to IEEE 1364-2005 Verilog VPI

Detect breaking changes between OpenAPI 3.0/3.1 specs. Explainable Web UI, CLI and CI gate; local-first and deterministic, with optional AI summaries.

Differential analysis tool for coding-free researchers – instant statistical results and charts, ready for your lab meeting. Just unzip and run! No-coding!

Source for Swarm Verify: run project checks, record verifiable evidence, and expose verification gaps in AI-written changes. Includes an optional beta coding agent.

Assertion testing library for Ruby

Test your code in a real FreeBSD virtual machine on GitHub Actions -- QEMU-powered, with SSH and two-way folder sync

Code style checking for RSpec files.

AI-powered penetration testing assistant for automating recon, note-taking, and vulnerability analysis.

Generating fake data for the JVM (Java, Kotlin, Groovy) has never been easier!

Enterprise-grade feature flag platform that you can self-host. Get started - free.

A modern, expressive testing package for Swift