The best Software Testing tools and resources on the internet.

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

Quicktype

Quicktype

Free

Convert JSON into gorgeous, typesafe code in any language.

Automated Checking
Automated Software Testing...

Automated Software Testing...

Free

Unit Testing, Coverage Criteria and Design for Testability.

Learn Software Testing
JSON Formatter

JSON Formatter

Free

Makes JSON easy to read. Open source.

DevTools
v

vitest-profiler

Free

A Vite plugin that surfaces performance bottlenecks within your test suite

Automated Checking
C

CSV SQL Tool

Free

Run SQL queries on CSV files directly in your browser. No data leaves your browser. Fast, private, and easy to use.

Data
DopplerTask

DopplerTask

Free

A revolutionary open source software that allows you to easily automate tasks.

DevTools
Lighthouse Simulator

Lighthouse Simulator

Free

This tool runs a Lighthouse performance test at a range of different network speeds.

Performance Testing
Playwright Pulse Report

Playwright Pulse Report

Free

Transforms raw playback data into actionable insights

Automated Checking
A

Awesome Penetration Testing

Free

A collection of awesome penetration testing and offensive cybersecurity resources.

Security Testing
Distrobox

Distrobox

Free

Use any Linux distribution inside your terminal.

DevOps
Litmus

Litmus

Free

Cloud Native Chaos Engineering platform

Performance Testing
TestCase Studio

TestCase Studio

Free

It’s a browser extension that records the user actions performed on a web application in English Sentences.

Automated Checking
e

eslint-plugin-jsx-a11y

Free

Static AST checker for a11y rules on JSX elements.

Accessibility Testing
vscode.dev

vscode.dev

Free

VS Code running fully in the browser.

IDE
Vegeta

Vegeta

Free

HTTP load testing tool and library. It's over 9000!

Performance Testing
Url To Json

Url To Json

Free

Display the page's content in JSON format.

Data
mitmproxy

mitmproxy

Free

It’s a free and open source interactive HTTPS proxy

API Testing
APCA Contrast Calculator

APCA Contrast Calculator

Free

Accessible Perceptual Contrast Algorithm

Accessibility Testing
Karate

Karate

Free

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

Automated Checking
MiniSim

MiniSim

Free

MacOS app for launching iOS and and Android emulators.

Automated Checking
JWT.IS

JWT.IS

Free

Online debugging tool for JSON Web Tokens (JWT).

DevTools
CrUX Vis

CrUX Vis

Free

Visualizing Real-World User Experience Data with Chrome User Experience Report

Performance Testing
Pee.js

Pee.js

Free

A javascript Library for leaking memory

Memory
Gemini CLI

Gemini CLI

Free

An open-source AI agent that brings the power of Gemini directly into your terminal.

DevOps
Checkmate

Checkmate

Free

Track and monitor server hardware, uptime, response times, and incidents in real-time with beautiful visualizations

Performance Testing
Cypress Studio

Cypress Studio

Free

Visual way to generate tests

Automated Checking
Omni

Omni

Free

The all-in-one tool to supercharge your productivity ⌨️

DevTools
Instancio

Instancio

Free

A Java library for automating data setup in unit tests.

Test Data Generation
Sniffnet

Sniffnet

Free

A user-friendly network monitoring tool, built with Rust, to help you easily keep track of your Internet traffic.

Traffic Listener
VidCutter

VidCutter

Free

A modern yet simple multi-platform video cutter and joiner.

DevTools