The best Software Testing tools and resources on the internet.

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

The Selenium creator on AI testing, BiDi, and what's real

Featured

If you've written a Selenium test, you've used something Jason Huggins built. At Breakpoint 2026, he's talking about where testing goes from here: BiDi, the shift-left rethink, and the gap between AI demos and what your sprint actually looks like. It's free, virtual, and runs May 12–14.

Save your spot, It's Free!

Overlay Fact Sheet

Educating customers on web-accessibility overlays.

Accessibility Testing

Hammer

iOS touch synthesis library

Accessibility Testing

SQLime

SQLite Playground

Android UI Testing Cookbook

An open source documentation about Android UI testing.

Learn Software Testing

Git Guide

Solutions to 80% of your daily git challenges

Mockaroo

Generate up to 1,000 rows of realistic test data in CSV, JSON, SQL, and Excel formats. Free!

Test Data Generation

Intellij IDEA

Free - Community Edition

For web and enterprise development

Python-Fiddle

An online Python compiler, IDE, and interpreter directly in the browser.

Automated Checking

Mizu

A simple-yet-powerful API traffic viewer for Kubernetes.

Japa

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

Automated Checking

Open CRE

A platform that interactively links resources together using connecting threats, weaknesses, standards, code samples, and test instructions.

Security Testing

Security List

Curated lists of tools, tips and resources for protecting digital security and privacy

Security Testing

SQLBolt

Learn SQL with simple, interactive exercises.

Learn Software Testing

XSSHunter

Use Docker and Dockery Compose to test and find blind cross-site scripting vulnerabilities.

Security Testing

Snipclip

Capture your screen effortlessly with a free, browser-based recorder requiring no setup, installation, or signups.

LINQPad

LINQPad is a software utility targeted at .NET Framework development.

Online Gherkin Editor

Free, simple to use online Gherkin editor

Automated Checking

Pythagora

Pythagora creates automated tests for you by analysing server activity

Automated Checking

Indetectables Toolkit

98 apps to perform reverse engineering and binary/malware analysis.

Security Testing

JSON Hero

A beautiful JSON explorer packed with features

Instancio

A Java library for automating data setup in unit tests.

Test Data Generation

JSON Viewer

An online JSON viewer that lets you minify, beautify, and load JSON from a file.

Violating GDPR

Enter a URL and this tool will tell you if the website is violating GDPR laws.

Security Testing

LocalSend

An open-source cross-platform alternative to AirDrop for all platforms.

ShellCheck

finds bugs in your shell scripts.

KIF

Keep It Functional - An iOS Functional Testing Framework

Automated Checking

iPerf

test maximum achievable bandwidth on IP networks.

Performance Testing

PageSpy

Debug remotely and easily with a range of features like chrome devtool.

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

Web Sequence Diagrams

Diagram creation

Visual Modeling