The best Software Testing tools and resources on the internet.

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

Test your checkout before the holiday rush

Featured

Your checkout already has Playwright or Selenium tests. Those same tests can now be your load test. Run them in up to 1,000 browsers at once while API load runs in the background. You’ll see when the page starts to slow down, well before holiday sales begin. Try BrowserStack Load Testing for free.

Try a free load test!

Pile

A privacy-friendly, open source journaling app for Mac.

Guidepup

Screen reader driver for test automation

Accessibility Testing

borp

node:test runner wrapper with TypeScript support

Automated Checking

Pytest

Python based testing framework

Automated Checking

Beeftext

An open source text substitution tool for Windows.

Lighthouse Scoring Calculator

An interactive page that lets you fiddle around with various performance metrics so you can determine which parts will affect your final Lighthouse score.

Performance Testing

DataGen

A Python-based synthetic data generation library built for developers, data engineers, and ML practitioners.

Test Data Generation

PactumJS

A REST API testing tool to automate e2e, integration, contract, and component (or service-level) tests.

Little Ipsum

Built in Lorem Ipsum for MacOs

Mockito

Write clean, maintainable unit tests with minimal boilerplate with Java

Cypress Intercept Search

A Cypress plugin that adds a custom command to search and assert values in intercepted requests and responses.

Automated Checking

JSON Formatter

Makes JSON easy to read. Open source.

SlimImg

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

Accessibility Checker

A free online ADA and WCAG compliance checker.

Accessibility Testing

Todoist

Organize it all with Todoist

Task Management

Online Gherkin Editor

Free, simple to use online Gherkin editor

Automated Checking

API Spector

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

Vue DevTools Next

Next iteration of Vue DevTools

Mark Text

Simple and Elegant Markdown Editor

Test-Lab.ai

Automatically heals Playwright tests when selectors change, minimizing test maintenance and flaky-test rates.

DB Browser for SQLite

Auto-load your database and displays the data right inside VS Code

Open CRE

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

Security Testing

ARIA DevTools

Easily spot missing ARIA labels, misused ARIA roles, and incomplete keyboard support in your web apps.

Accessibility Testing

RecipeUI

Open source Postman alternative with type safety built in.

Apache Jmeter

Open source load testing tool

Performance Testing

Kali Linux

Operatng System

Security Testing

Classic Cache Killer

Chche Management

Exploratory Testing

Maestro

An easy-to-use automation testing framework for mobile apps.

Automated Checking

Mobile FIRST

Smartphone and tablet simulator to test your mobile site on various devices.

Exploratory Testing

Dia Diagram Editor

Free drawing software for Windows, Mac OS X, and Linux

Visual Modeling