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The best Software Testing tools and resources on the internet.
Over 500+ awesome tools and resources on the internet to supercharge your testing.

Karate
FreeOpen Source solution unifying API testing, API Performance testing, API Mocks and UI testing.
ColorContrast.App
FreeCheck and suggests colors to meet the required WCAG or APCA contrast ratio.
WebVM
FreeA server-less virtual Linux environment running fully client-side in HTML5 and WebAssembly.

Loop
FreeA macOS app that simplifies window management for you.

MemLab scenario Recorder
FreeCapture and analyze memory performance in web applications
Comcast
FreeSimulate common network problems like latency, bandwidth restrictions and more

Web Check
Freeπ΅οΈββοΈ All-in-one OSINT tool for analysing any website
Git Guide
FreeSolutions to 80% of your daily git challenges
Mitata
Freebenchmark tooling that loves you β€οΈ

Bruno
FreeOpensource IDE For Exploring and Testing Api's (lightweight alternative to postman/insomnia)

Maestro Workbench
FreeElevate Your Maestro YAML Development in Visual Studio Code

Zed
FreeHigh-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

Jest
FreeDelightful JavaScript Testing Framework

Infinite Mac
FreeCollection of classic Macintosh system releases and software accessible from the web browser.
MailDev
FreeSMTP server & web interface for viewing and testing emails during development.
Base62
FreeEncode & decode strings, bytes, and integers to Base62
iPerf
Freetest maximum achievable bandwidth on IP networks.

TestCafe
FreeNo WebDriver required. No manual timeouts needed. Cross-browser testing out-of-the-box.
ShellCheck
Freefinds bugs in your shell scripts.

Apache Bench
FreeApache HTTP server benchmarking tool.
JaCoCo Java Code Coverage Library
FreeFree code coverage library for Java

Hanbi
FreeA small and simple library for stubbing and spying on methods and functions in JavaScript tests.

Beeftext
FreeAn open source text substitution tool for Windows.
SMTP Debug Tool
FreeTest SMTP connection and see the complete SMTP log.

XCMonkey
FreeChallenge your apps on iOS with monkey testing π±π
Playwright MCP
FreeAI assisted Browser automation using Playwright that enables LLMs to interact with pages through structured accessibility snapshots, bypassing the need for screenshots.
Ctool
FreeCommonly used software development and testing tools

BITB
FreeBrowser templates for Browser In The Browser (BITB) attack.

Device Simulator & Tester
FreeTest sites on multiple devices in one tab. Improve development, UI/UX, & QA with live previews.

JSON Crack
Free PlanSeamlessly visualize your JSON, XML, TOML, YAML, CSV instantly into graphs!