The best Software Testing tools and resources on the internet.

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

You can now run Playwright tests on real iOS devices with Safari

Featured

Playwright users can now test on real iPhones and iPads with Safari. BrowserStack’s latest launch lets you run parallel tests across 1000+ device-browser combinations, capture logs, videos, and text reports in one place, and simulate real-world conditions to ensure full coverage. Run your first test here!

Karate

Open Source solution unifying API testing, API Performance testing, API Mocks and UI testing.

Automated Checking

ColorContrast.App

Check and suggests colors to meet the required WCAG or APCA contrast ratio.

Accessibility Testing

WebVM

A server-less virtual Linux environment running fully client-side in HTML5 and WebAssembly.

Loop

A macOS app that simplifies window management for you.

MemLab scenario Recorder

Capture and analyze memory performance in web applications

Comcast

Simulate common network problems like latency, bandwidth restrictions and more

Performance Testing

Web Check

🕵️‍♂️ All-in-one OSINT tool for analysing any website

Security Testing

Git Guide

Solutions to 80% of your daily git challenges

Mitata

benchmark tooling that loves you ❤️

Performance Testing

Bruno

Opensource IDE For Exploring and Testing Api's (lightweight alternative to postman/insomnia)

Maestro Workbench

Elevate Your Maestro YAML Development in Visual Studio Code

Automated Checking

Zed

High-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

Jest

Delightful JavaScript Testing Framework

Automated Checking

Infinite Mac

Collection of classic Macintosh system releases and software accessible from the web browser.

MailDev

SMTP server & web interface for viewing and testing emails during development.

Base62

Encode & decode strings, bytes, and integers to Base62

Automated Checking

iPerf

test maximum achievable bandwidth on IP networks.

Performance Testing

TestCafe

No WebDriver required. No manual timeouts needed. Cross-browser testing out-of-the-box.

Automated Checking

ShellCheck

finds bugs in your shell scripts.

Apache Bench

Apache HTTP server benchmarking tool.

Performance Testing

JaCoCo Java Code Coverage Library

Free code coverage library for Java

Automated Checking

Hanbi

A small and simple library for stubbing and spying on methods and functions in JavaScript tests.

Automated Checking

Beeftext

An open source text substitution tool for Windows.

SMTP Debug Tool

Test SMTP connection and see the complete SMTP log.

XCMonkey

Challenge your apps on iOS with monkey testing 📱🐒

Performance Testing

Playwright MCP

AI assisted Browser automation using Playwright that enables LLMs to interact with pages through structured accessibility snapshots, bypassing the need for screenshots.

Automated Checking

Ctool

Commonly used software development and testing tools

BITB

Browser templates for Browser In The Browser (BITB) attack.

Security Testing

Device Simulator & Tester

Test sites on multiple devices in one tab. Improve development, UI/UX, & QA with live previews.

Exploratory Testing

JSON Crack

Seamlessly visualize your JSON, XML, TOML, YAML, CSV instantly into graphs!