The best Software Testing tools and resources on the internet.

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

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A few years ago, the challenge was getting more testing done. Today, QA leaders are asking a different question: where does QA create the most value when software can be built and tested in entirely new ways? Join BrowserStack's QA Leadership Summit 2026 on September 23 to hear how leaders and practitioners are approaching that shift in the real world.

Explore the new QA Playbook!

Docker

use OS-level virtualization to deliver software in packages called containers

Contrast Checker

Checks contrast for WCAG compliance

Accessibility Testing

Diagrams

🎨 Diagram as Code for prototyping cloud system architectures

Visual Modeling

beef

It is a penetration testing tool that focuses on the web browser.

Security Testing

Hercules

Open-source AI testing agent

AutoIt

Automate the Windows GUI and general scripting

Desktop Automation

JSON Visio

Visualize your JSON into interactive graphs.

MailDev

SMTP server & web interface for viewing and testing emails during development.

MemLab scenario Recorder

Capture and analyze memory performance in web applications

Xenu's Link Sleuth

Find and fix your site’s broken links

Exploratory Testing

Net-Tools.io

free web app to perform functions like DNS lookups, port checks port scans, IP Information gathering, hash generation, blacklist checks, subnet calculation and more..

Traffic Listener

Nexial

Test automation for everyone - test automation platform with support for web (selenium), desktop, database, api and much more. Coding not required ;-)

Desktop Automation

Rivet

Inspect, debug, modify, and manipulate the state of Ethereum.

Automated Checking

Automock

A tool to optimize the unit testing process.

Automated Checking

Login C-Sharp Playwright Automation

C# automation framework using Playwright + NUnit for login testing. Built entirely with GitHub Copilot prompts. Includes Page Object Model, CI/CD with GitHub Actions, and Allure reporting.

playwright-utils

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

Automated Checking

OC Mock

mock object testing framework that can be used to create stubs in iOS apps.

vitest-profiler

A Vite plugin that surfaces performance bottlenecks within your test suite

Automated Checking

Sitespeed.io

Performance Testing

Performance Testing

httpbin.org

HTTP Request & Response Service, written in Python + Flask.

Portman

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

Playwright Pulse Report

Transforms raw playback data into actionable insights

Automated Checking

Ad Speedup

Skip YouTube Video Ads Faster

Mimesis

Generate wide range of fake data in multiple languages.

Test Data Generation

Nuxt Test Utils

🧪 Test utilities for Nuxt

Automated Checking

JsonT.run

online JSON formatting and processing tool with powerful functions

JSON Viewer

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

JSONFormatter.net

JSON formatter and validator tool

Stryker Mutator

Test your tests with mutation testing.

Automated Checking

Lighthouse

Scanning tool that audits SEO, performance and other web best practices

Performance Testing