#testing

K-Veritas

Cryptographic verification tool that binds computational results to their producing code, hardware, and execution time in signed, tamper-evident records.

Rudder

A local plugin that retroactively generates specifications and linked unit tests from your AI coding agent's prompt history.

OverlayQA

Design QA tool that flags visual and accessibility bugs by capturing UI elements with full CSS and technical context before they reach production.

Hookwise

A developer tool that gives you an instant public URL to capture, inspect, and replay webhooks.

A11yEngine

A free Chrome extension for automated WCAG accessibility auditing with framework-aware code fixes.

MCP State Twin

A testing framework that gives AI agents deterministic, forkable, stateful sandboxes — so you can run the same starting state through different tool-call sequences and compare results reproducibly.

Panto AI

A testing tool that watches your mobile app on real phones, writes its own test cases from plain-English descriptions, and fixes itself when the app's design changes.

Orchestra

A desktop app where you build a web automation — clicking buttons, filling forms, scraping data — by pointing and clicking, and it hands you real, ready-to-use Playwright code at the end instead of locking your work inside a subscription.

iFixAi

A free health check for AI agents that scans for signs an AI is lying, manipulating, or behaving unpredictably before it causes real damage to your business — like a security scanner, but for an AI's honesty and behavior instead of its code.

Floci

Lets developers run fake-but-functional AWS, Azure and Google Cloud services on their own laptop for free, so they can test cloud code without a real cloud account, credit card, or bill.

QitOps CLI Tools

A free, open-source command-line tool that replaces a whole stack of separate testing tools — for APIs, load, security, and web pages — with one program, so QA engineers don't have to juggle Postman, k6, and browser scripts separately.

Confident AI

A dashboard that tells you whether your AI feature is actually getting worse or better over time, built on top of a popular open-source testing library instead of asking you to guess from user complaints.

Archal

Testing environment that gives AI agents realistic, stateful clones of GitHub, Slack, Stripe and other SaaS tools so bugs get caught before production.

TryCase

Gives AI coding agents disposable cloud Linux environments to actually run and test the code they write, capturing screenshots and recordings as proof instead of just claiming "done".

Statsig

Combined feature flag, A/B testing, product analytics and session replay platform, built to answer whether a feature actually worked, not just whether it shipped.

Qodo

AI code review and governance platform that reviews pull requests with full multi-repository context and enforces team coding standards automatically.

mabl

AI-native test automation platform that builds, runs and self-heals tests across web, mobile and API applications.

Thunder Client

Lightweight REST/WebSocket/gRPC API client built into VS Code and JetBrains — no app switching, local-first, git-syncable.

promptfoo

Open-source LLM eval and red teaming: test prompts, compare models, catch jailbreaks and data leaks locally and in CI.

Braintrust

AI eval and observability platform: tracing, LLM and human scoring, quality gates. Used by Vercel, Notion and Replit.