The best Software Testing tools and resources on the internet.

node:test runner wrapper with TypeScript support

Observable Integration Testing using OpenTelemetry on top of Jest/Playwright/Cypress.

Windows inside a Docker container.

Free, simple to use online Gherkin editor

HTTPie for Mac, Windows, and Linux

CodeSandbox Black theme for VSCode.

Property-based testing for Scala

An Android analytics library created using Kotlin.

An on-path blackbox network traffic security testing tool

VS Code running fully in the browser.

An interactive page that lets you fiddle around with various performance metrics so you can determine which parts will affect your final Lighthouse score.

Analyze HTML size and catch bloat like inline images, large React hydration state, or code duplication.

Find the best cursor rules for your framework and language

Build your own cloud testing infrastructure.

Simple JMeter performance tests API

This simple yet effective tool helps you compare two texts, and reveals the similarities and differences.

open-source and complete service-lifecycle platform for Kubernetes

Manage and switch between multiple proxies quickly & easily.

In-memory Postgres for unit/E2E tests

A Java library for processing media data. Supported media formats include still images, video, audio and meta-data.

Pest is an elegant PHP Testing Framework with a focus on simplicity.

TestProject is the world's first 100% free test automation platform for Web, Android, iOS and API testing, trusted by over 150,000 users in the testing community.

A clean and readable Playwright reporter that turns noisy test output into structured, timestamped, developer-friendly logs — all right in the terminal.

Apple’s official testing framework for unit tests.

Display the page's content in JSON format.

Translate your JSON files or objects into different languages. FREE

Automatically generates OpenAPI specifications in real-time.

Test for accessibility for people who have limited or no use of their hands

Test SMTP connection and see the complete SMTP log.

Generate realistic test data with simple yet powerful syntax.