The best Software Testing tools and resources on the internet.

Over 500+ awesome tools and resources on the internet to supercharge your testing.

Your Complete Test Automation Cycle, Right Inside Your IDE

Featured

Meet BrowserStack Test Companion, agentic AI that brings the full test automation cycle into your IDE, from test case generation and script authoring to execution, debugging, and maintenance. It adapts to Playwright, Selenium, Cypress, Appium, WebdriverIO, and TestNG, and installs in VS Code, Cursor, Visual Studio, and JetBrains IDEs

Try Test Companion!

Stryker Mutator

Test your tests with mutation testing.

Automated Checking

Endtest

Intelligent Test Automation

Automated Checking

LocatorX

Turn any web page into a clean set of resilient, ready-to-use test locators.

Hurl

Simplify HTTP Requests and Testing with Plain Text

Traffic Listener

Hemmelig

Paste a password, confidential message, or private data.

GQL

SQL like language to perform queries on .git files.

Automated Checking

Javascript Game Engines Comparison

Performance comparison of Javascript rendering/game engines.

Performance Testing

Schemathesis

A property-based testing tool for API schemas like OpenAPI, Swagger, and GraphQL.

Bash Oneliner

A collection of handy Bash One-Liners and terminal tricks for data processing and Linux system maintenance.

Contrast Grid

Check compliance with WCAG 2.0 minimum contrast

Accessibility Testing

Lockfile Lint

Lint an npm or Yarn lockfile to analyze and detect security issues via predefined security policies.

Security Testing

Lighthouse

Scanning tool that audits SEO, performance and other web best practices

Performance Testing

UI Bakery RegEx Library

A curated list of useful regular expressions for different programming languages.

90-Day Cybersecurity Study Plan

Resources and materials for learning various cybersecurity concepts and technologies.

Learn Software Testing

Tumult

A chaos engineering and fault injection proxy for AI agents (Claude Code, GitHub Copilot, Codex, OpenCode) to test resilience under network latency, rate limits, malformed payloads, and tool failures.

Security List

Curated lists of tools, tips and resources for protecting digital security and privacy

Security Testing

WebPerf Snippets

A curated list of snippets to get Web Performance metrics to use in the browser console or as snippets on Chrome DevTools

Performance Testing

Faker

Generate massive amounts of fake data in the browser and node.js

Test Data Generation

NetExec

Ultimate Network Service Exploitation Tool

Security Testing

Colour Contrast Analyser (CCA)

Colour Contrast Analyser (CCA)

Accessibility Testing

zxing

Barcode scanning library for Java, Android.

Automated Checking

Tldts

JavaScript Library to extract domains, subdomains and public suffixes from complex URIs.

Animate SQL

Visualize SQL queries online.

Learn Software Testing

TimeLapze

A open-source menu bar application for creating screen and camera timelapses without excessive file sizes.

Open CRE

A platform that interactively links resources together using connecting threats, weaknesses, standards, code samples, and test instructions.

Security Testing

super-api-playwright-tester

A high-performance E2E testing wrapper that combines fast API contract assertions with the robust browser automation layers of Playwright.

VirtualBuddy

Virtualize macOS 12 and later on Apple Silicon

Exploratory Testing

The Unit Testing Diet App

Learn to effectively unit test an MVVM app at scale

Automated Checking

JSONFormatter.net

JSON formatter and validator tool

Form Filler

A customizable Chrome and Firefox extension that fills dummy text in all input fields in a page.

Test Data Generation