The best Software Testing tools and resources on the internet.

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

What QA Leaders Need to Know About AI in 2026

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Everyone's talking about AI, but what does it actually take to build quality into AI-powered software? Hear from engineering leaders at Google Cloud, Salesforce, and more as they share real-world lessons on enterprise AI testing, agentic workflows, and what's next for QA.

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Axe Core

Accessibility engine for automated Web UI testing

Accessibility Testing

Python Regex

Real-time regular expression tester for Python

Difftastic

A CLI diff tool that compares files based on their syntax, not line-by-line. Difftastic produces accurate diffs that are easier for humans to read.

Stryker Mutator

Test your tests with mutation testing.

Automated Checking

Regexper

Regular Expression Visualization Site - Create a Diagrams from your regular expressions

SQLite GUI

Lightweight SQLite editor for Windows

Portman

Port OpenAPI Specs to Postman Collections, inject test suite and run via Newman

Distrobox

Use any Linux distribution inside your terminal.

Online Gherkin Editor

Free, simple to use online Gherkin editor

Automated Checking

Gemini CLI

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

ShareX

Capture or record any area of your screen and share it with a single press of a key.

Rem

An open source approach to locally record and enable searching everything you view on your Mac.

SMS Temp

Receive SMS Online - 100% Free

Playwright Logger

A clean and readable Playwright reporter that turns noisy test output into structured, timestamped, developer-friendly logs — all right in the terminal.

Automated Checking

Hurl

Simplify HTTP Requests and Testing with Plain Text

Traffic Listener

SQLite Schema Diagram Generator

Visualize yout DataBase in SQL Schema graph.

Placemark

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

DevSwiss

A Mac app that includes a set of offline tools designed to maximize productivity

Wave Terminal

An open-source terminal emulator for Mac or Linux.

API Spector

Local-first API testing tool to inspect, test and mock APIs

astro-font

`astro-font` will automatically optimize your Custom Fonts, Local Fonts, Fonts over any CDN and Google fonts for performance.

Performance Testing

Thunder Client- VS Code

Thunder Client is a lightweight Rest API Client Extension for Visual Studio Code

Pitest

State of the art mutation testing system, providing gold standard test coverage for Java and the jvm.

Automated Checking

wick-a11y

Enhancing Web Accessibility Testing with Cypress

Accessibility Testing

FreeFileSync

Open Source File synchronization

Android LogCat

Capture logs on Android devices.

Learn REST: A RESTful Tutorial

Learn everything there is to know about REST apis with the this opensource resource.

RedCoffee

Generate insightful PDF Reports for code analysis done using SonarQube Community Edition

Security Testing

Test Kitchen

Test Kitchen provides a test harness to execute infrastructure code on one or more platforms in isolation.

Hercules

Open-source AI testing agent