The best Software Testing tools and resources on the internet.

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

OpenIn Terminal

OpenIn Terminal

Free

Finder Toolbar app for macOS to open the current directory in Terminal

DevTools
TestCafe

TestCafe

Free

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

Automated Checking
b

browserable

Free

Open source and self-hostable browser automation library for AI agents

Automated Checking
Zed

Zed

Free

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

IDE
Ctool

Ctool

Free

Commonly used software development and testing tools

DevTools
Domain Digger

Domain Digger

Free

Get details on any domain, including DNS, WHOIS, certificates, and list of available subdomains.

DevOps
NPM Studio

NPM Studio

Free

Manage your npm packages directly from the VS code editor.

Automated Checking
Chaos Monkey

Chaos Monkey

Free

Performance and Infra testing

Performance Testing
p

playwright-utils

Free

A collection of utilities for Playwright tests at SEON Technologies, designed to make testing more efficient and maintainable.

Automated Checking
Hemmelig

Hemmelig

Free

Paste a password, confidential message, or private data.

DevTools
OpenAPI DevTools

OpenAPI DevTools

Free

Chrome extension that generates API specs for any app or website

API Testing
Web Developer

Web Developer

Free

A browser extension that adds various web developer tools to a browser.

DevTools
Selenium WebDriver

Selenium WebDriver

Free

Browser driver API

Automated Checking
JSONGenerator.io

JSONGenerator.io

Free

Generate JSON data structures for mock data.

DevTools
Rayrun

Rayrun

Free

Collection of 70+ testing and development productivity tools — all in one place!

DevTools
Speed Bump

Speed Bump

Free

TCP proxy with variable latency

Performance Testing
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
AI-Powered UI Test Automation Agent

AI-Powered UI Test Automation Agent

Free

Combining Generative AI, RAG, and computer vision for UI test automation.

Automated Checking
Arachni

Arachni

Free

Web Application Security Scanner Framework

Security Testing
Hammer

Hammer

Free

iOS touch synthesis library

Accessibility Testing
SlimImg

SlimImg

Free

Compress JPG, PNG & WebP images locally in your browser. No uploads, privacy-safe, free image optimization with up to 90% size reduction.

DevTools
JSON Formatter

JSON Formatter

Free

Makes JSON easy to read. Open source.

DevTools
L

Lockbox

Free

A forward proxy for making third party API calls.

DevTools
Mailpit

Mailpit

Free

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

Email Testing
OddContrast

OddContrast

Free

A color contrast checker for modern CSS color formats.

Accessibility Testing
H

Hero

Free

The web browser built for scraping

DevTools
FocusBloom

FocusBloom

Free

Enhance your productivity and time management skills through focused work intervals and short breaks.

Task Management
Selenideium Element Inspector

Selenideium Element Inspector

Free

A handy tool to log attributes and Selenide, Selenium, Cypress, Playwright, Squish and TestCafe locators of the clicked element.

Automated Checking
C

Cypress Chrome Recorder

Free

Export Cypress Tests from Google Chrome DevTools' Recorder

DevTools
A

Awesome Chaos Engineering

Free

A curated list of Chaos Engineering resources.

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