The best Software Testing tools and resources on the internet.

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

A

Axe Html Reporter

Free

Creates easy to read HTML file from axe-core accessibility results object

Accessibility Testing
Thunderbird

Thunderbird

Free

Make Email Easier

Email Testing
P

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
PasteSafely

PasteSafely

Free

A Pastebin alternative

DevTools
Beeftext

Beeftext

Free

An open source text substitution tool for Windows.

DevTools
Instancio

Instancio

Free

A Java library for automating data setup in unit tests.

Test Data Generation
CSV generator

CSV generator

Free

Web CSV Generator is a web-based random CSV data generator written in JavaScript. It allows to generate CSV files.

Test Data Generation
xScope

xScope

$50 USD for 1 license

Measure, Inspect and Test

Exploratory Testing
P

Payloads All The Things

Free

A list of useful payloads and bypasses for Web Application Security

Security Testing
Web Vitals

Web Vitals

Free

A Chrome extension that automatically checks Web Vitals scores on the website you're currently viewing.

Performance Testing
V

Vue DevTools Next

Free

Next iteration of Vue DevTools

DevTools
Dummy

Dummy

Free

Run mock server based off an API contract with one command

API Testing
Bug Magnet

Bug Magnet

Free

Exploratory testing assistant for Chrome and Firefox

Exploratory Testing
Citrus

Citrus

Free

Citrus Integration Testing

Automated Checking
Mock Service Worker

Mock Service Worker

Free

Mock API by intercepting requests on the network level. Seamlessly reuse the same mock definition for testing, development, and debugging.

API Testing
Can I Use

Can I Use

Free

'Can I use' provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers.

Other
Speed Bump

Speed Bump

Free

TCP proxy with variable latency

Performance Testing
Jest- VS Code

Jest- VS Code

Free

This extension supports full jest features in vscode environment to make testing more intuitive and fun.

Automated Checking
VirtualBuddy

VirtualBuddy

Free

Virtualize macOS 12 and later on Apple Silicon

Exploratory Testing
B

Beachpatrol

Free

A CLI tool to replace and automate your daily web browser.

Automated Checking
Healenium

Healenium

Free

Healenium improves stability of Selenium-based test cases, handling changes of updated web elements.

Automated Checking
Japa

Japa

Free

API-first testing framework focusing only on testing Node.js (backend) applications

Automated Checking
SubiRegex

SubiRegex

Free

Using AI to generate RegEx using plain English.

DevTools
Json Translator

Json Translator

Free

Translate your JSON files or objects into different languages. FREE

DevTools
Promptfoo

Promptfoo

Free

Test your prompts, agents, and RAGs. Red teaming, pentesting, and vulnerability scanning for LLMs.

AI Testing
Placemark

Placemark

Free

A flexible web-based editor, converter, visualization tool, for geospatial data.

DevTools
c

codespelunker

Free

A command line search tool.

DevTools
snapstub

snapstub

Free

Snapshot-based stub/mocking of APIs.

API Testing
v

vcrpy

Free

Automatically mock your HTTP interactions to simplify and speed up testing

API Testing
headers 2 curl.

headers 2 curl.

Free

headers 2 curl. Provided a set of HTTP request headers, output the curl command line for generating that set.

Traffic Listener