The best Software Testing tools and resources on the internet.

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

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A few years ago, the challenge was getting more testing done. Today, QA leaders are asking a different question: where does QA create the most value when software can be built and tested in entirely new ways? Join BrowserStack's QA Leadership Summit 2026 on September 23 to hear how leaders and practitioners are approaching that shift in the real world.

Explore the new QA Playbook!

Polly

Record, Replay, and Stub HTTP Interactions.

Automated Checking

dstp

🧪 Run common networking tests against your site.

Traffic Listener

Jubula

Jubula Functional Testing Tool for desktop Java applications

Desktop Automation

fuite

A tool for finding memory leaks in web apps

WebPageTest GitHub Action

A GitHub Action that lets you automatically run tests against WebPageTest on code changes.

Performance Testing

TWD - Test While Developing

Test While Developing (TWD) - in-browser testing for React, Vue, Angular, and Solid.js applications

Automated Checking

Mailpit

An email and SMTP testing tool with API for developers and automated integration testing.

MCPLab

Test how well LLM agents use your MCP tools, compare different models, and track quality over time.

Overlay Fact Sheet

Educating customers on web-accessibility overlays.

Accessibility Testing

Mokku

Mock API calls seamlessly

Test Kitchen

Test Kitchen provides a test harness to execute infrastructure code on one or more platforms in isolation.

Zen

A web browser for Windows, Mac, and Linux

Exploratory Testing

Robot Framework

Test Automation & RPA

Automated Checking

vscode.dev

VS Code running fully in the browser.

Keploy

Generate tests and stubs for your application that actually work!

WAF Checker

Check how well your Web Application Firewall (WAF) protects your product against common web attacks.

Security Testing

Chaos Monkey

Performance and Infra testing

Performance Testing

pgmock

In-memory Postgres for unit/E2E tests

AltUnity Tester

UI Test Automation for Unity applications

Desktop Automation

Zap

Scanning tool for security vulnerabilities

Security Testing

Bash Oneliner

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

Bundle Scanner

Identify NPM libraries included in Javascript files

Performance Testing

iris mock

A kotlin-first tool to intercept android network calls, modify requests/responses and mock entire APIs.

Automated Checking

Jules

An AI-powered CLI tool designed to automate code modifications, package updates, and codebase refactoring.

Security List

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

Security Testing

d3

Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Visual Modeling

Gherkin Guidelines for AI

Use these guidelines for writing good Gherkin scenarios. Feed it as context to AI specs, agents, and skills.

Test Case Management

contrast ratio

A tool to calculate the contrast ratio between any two valid CSS colors.

Accessibility Testing

GraphQL Network Inspector

A better network inspector for viewing and debugging GraphQL requests in Chrome and Firefox.

coTestPilot

AI-Powered Testing for Playwright and Selenium

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