The best Software Testing tools and resources on the internet.

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

Karate

Karate

Free

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

Automated Checking
ColorContrast.App

ColorContrast.App

Free

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

Accessibility Testing
WebVM

WebVM

Free

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

DevOps
Loop

Loop

Free

A macOS app that simplifies window management for you.

DevTools
MemLab scenario Recorder

MemLab scenario Recorder

Free

Capture and analyze memory performance in web applications

Memory
C

Comcast

Free

Simulate common network problems like latency, bandwidth restrictions and more

Performance Testing
Web Check

Web Check

Free

πŸ•΅οΈβ€β™‚οΈ All-in-one OSINT tool for analysing any website

Security Testing
G

Git Guide

Free

Solutions to 80% of your daily git challenges

DevTools
M

Mitata

Free

benchmark tooling that loves you ❀️

Performance Testing
Bruno

Bruno

Free

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

API Testing
Maestro Workbench

Maestro Workbench

Free

Elevate Your Maestro YAML Development in Visual Studio Code

Automated Checking
Zed

Zed

Free

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

IDE
Jest

Jest

Free

Delightful JavaScript Testing Framework

Automated Checking
Infinite Mac

Infinite Mac

Free

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

DevTools
MailDev

MailDev

Free

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

Email Testing
B

Base62

Free

Encode & decode strings, bytes, and integers to Base62

Automated Checking
iPerf

iPerf

Free

test maximum achievable bandwidth on IP networks.

Performance Testing
TestCafe

TestCafe

Free

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

Automated Checking
ShellCheck

ShellCheck

Free

finds bugs in your shell scripts.

DevTools
Apache Bench

Apache Bench

Free

Apache HTTP server benchmarking tool.

Performance Testing
JaCoCo Java Code Coverage Library

JaCoCo Java Code Coverage Library

Free

Free code coverage library for Java

Automated Checking
Hanbi

Hanbi

Free

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

Automated Checking
Beeftext

Beeftext

Free

An open source text substitution tool for Windows.

DevTools
SMTP Debug Tool

SMTP Debug Tool

Free

Test SMTP connection and see the complete SMTP log.

Email Testing
XCMonkey

XCMonkey

Free

Challenge your apps on iOS with monkey testing πŸ“±πŸ’

Performance Testing
Playwright MCP

Playwright MCP

Free

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

Ctool

Free

Commonly used software development and testing tools

DevTools
BITB

BITB

Free

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

Security Testing
Device Simulator & Tester

Device Simulator & Tester

Free

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

Exploratory Testing
JSON Crack

JSON Crack

Free Plan

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

Data