The best Software Testing tools and resources on the internet.

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

Turn the Web Into A Data Pipeline. Generate Your API, in Minutes.

Featured

If your team is still patching selectors and rotating proxies, you’re maintaining infrastructure your competitors stopped owning. Scraper Studio - from Bright Data turns any public website into a hosted data API from a single prompt: No sales call. No demo. Just spin up a scraper and watch it run.

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UI Bakery RegEx Library

A curated list of useful regular expressions for different programming languages.

SuperFile

Pretty fancy and modern terminal file manager.

Screen Ruler

Measure sizes, distances, margins and paddings of any element on any web page.

Exploratory Testing

FunnelPeek

A visual regression testing utility for auditing multi-step web funnels and checkout flows.

Random User Generator

FREE API for generating placeholder user information. Get profile photos, names, and more. It's like Lorem Ipsum, for people.

Test Data Generation

Zé Faker

zefaker is a command-line tool for generating CSV, Excel, JSON and SQL files from a Groovy DSL

Test Data Generation

Gemini CLI

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

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

HTML Size Analyzer

Analyze HTML size and catch bloat like inline images, large React hydration state, or code duplication.

Performance Testing

Pythex

Real-time Python regular expression editor

Stetho

A debug bridge for Android applications.

The Unit Testing Diet App

Learn to effectively unit test an MVVM app at scale

Automated Checking

d3

Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Visual Modeling

Promptfoo

Test your prompts, agents, and RAGs. Red teaming, pentesting, and vulnerability scanning for LLMs.

Curl

command line tool and library for transferring data with URLs

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

Charles Proxy

Web Debugging Proxy

Traffic Listener

Selenideium Element Inspector

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

Automated Checking

Microsoft PowerToys

Utilities to customize Windows

ModHeader

Modify HTTP request headers, response headers, and redirect URLs

Exploratory Testing

ChaosBlade

Help companies solve the high availability problems in the process of migrating to cloud-native systems through chaos engineering️

Performance Testing

Email on Acid

$73 USD per month

Empower Your Team to Deliver Email Perfection.

hiSHtory

Your shell history: synced, queryable, and in context

JS & CSS Minifier

Make your website smaller and faster by minifying the JS & CSS code!

LiveBench

A dynamic, contamination-free benchmarking platform for evaluating Large Language Models (LLMs) on hard reasoning, math, and coding tasks.

Snipclip

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

headers 2 curl.

headers 2 curl. Provided a set of HTTP request headers, output the curl command line for generating that set.

Traffic Listener

Ajv JSON schema validator

Security and reliability for JavaScript applications

JWT.IS

Online debugging tool for JSON Web Tokens (JWT).

Appium UiAutomator2 Driver

A test automation framework for Android devices.

Automated Checking