Hand-Picked Software Testing Tools & Resources

TestDevTools is the curated collection of the best tools on the internet to supercharge your testing.

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Featured Tools

Heynote logo

Heynote

Exploratory Testing

A dedicated scratchpad for developers and testers

Free
Webacus logo

Webacus

DevTools

Perform 110+ operations, including encoding, decoding and more...

Free
Uncompressed JavaScript bytes per character logo

Uncompressed JavaScript bytes per character

Performance Testing

Fetch and process the JSON data from a WebPageTest result.

Free
TypeSchema logo

TypeSchema

DevTools

Universal adapter for interacting with any validation schema.

Free
MemLab scenario Recorder logo

MemLab scenario Recorder

Memory

Capture and analyze memory performance in web applications

Free
MemLab logo

MemLab

Memory

Find JavaScript memory leaks and analyzing heap snapshots.

Free

API Testing

OpenAPI AutoSpec logo

OpenAPI AutoSpec

Automatically generates OpenAPI specifications in real-time.

Free
Keploy logo

Keploy

Generate tests and stubs for your application that actually work!

Free
Firecamp logo

Firecamp

Design, develop, test, and document their APIs effortlessly.

Free Plan
gaxios logo

gaxios

An HTTP request client that provides an Axios-like interface over top of node-fetch.

Free
Bruno logo

Bruno

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

Free
Mokku logo

Mokku

Mock API calls seamlessly

Free

Automated Checking Tools

Jsystem logo

Jsystem

Simplify creating, managing, and executing automated tests.

Free Plan
Retrofit logo

Retrofit

Easily turn API Responses into Plain Old Java Objects (POJOs)

Free
Zerostep logo

Zerostep

Supercharge your Playwright tests with AI

Free Plan
AssertJ logo

AssertJ

powerful and intuitive assertion library for Java

Free
REST Assured logo

REST Assured

Testing and validating REST services the easy way.

Free
P

Playwright Magic Steps

Auto-transform JavaScript comments into Playwright steps

Free

Exploratory Testing Tools

Heynote logo

Heynote

A dedicated scratchpad for developers and testers

Free
Screen Ruler: Measure The Web logo

Screen Ruler: Measure The Web

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

Free
Device Simulator & Tester logo

Device Simulator & Tester

Test sites on multiple devices in one tab. Improve development, UI/UX, & QA with live previews.

Free
Tabgod logo

Tabgod

Execute any JavaScript on any open browser tab.

Free
W

Web Font Analyzer

Get performance and usage implications of custom fonts.

Free
Repro logo

Repro

A chrome extension to make bug reporting in the browser more collaborative and reproducible

Free

Performance Testing Tools

Uncompressed JavaScript bytes per character logo

Uncompressed JavaScript bytes per character

Fetch and process the JSON data from a WebPageTest result.

Free
K6 logo

K6

open-source load testing tool, using Go and JavaScript

Free Plan
Postman to K6 logo

Postman to K6

Converts all the Postman requests, including tests, variables, ... to K6 scripts

Free
J

Javascript Game Engines Comparison

Performance comparison of Javascript rendering/game engines.

Free
W

Web Font Analyzer

Get performance and usage implications of custom fonts.

Free
EventKT logo

EventKT

An Android analytics library created using Kotlin.

Free

Security Testing Tools

Indetectables Toolkit logo

Indetectables Toolkit

98 apps to perform reverse engineering and binary/malware analysis.

Free
L

Lynis

Security auditing and hardening tool, for UNIX-based systems.

Free
P

Payloads All The Things

A list of useful payloads and bypasses for Web Application Security

Free
Mariana Trench logo

Mariana Trench

Mariana Trench is a security focused static analysis platform targeting Android.

Free
R

RapiDAST

Simple, continuous and fully automated application security testing.

Free
Cherrybomb logo

Cherrybomb

A CLI tool that helps you avoid undefined user behaviour by validating your API specifications.

Free