Best Tools For Web

Browse 65 + Web Tools

JSON Formatter

Makes JSON easy to read. Open source.


Generate a matching regular expression from the test cases you provide


Analyze webpack production bundle

CyrilEx Regex Tester

Cyrilex is a regular expression tester and visualizer


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

HTML Size Analyzer

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


Supports editing text and images in a PDF across all platforms.

WebPageTest GitHub Action

A GitHub Action that lets you automatically run tests against WebPageTest on code changes.


A beautiful JSON explorer packed with features

Allinone Tools

one-stop resource with tons of little utilities for formatting, editing, generating, minifying, and so on.


A web performance tool providing deep diagnostic information about how a page performs under a variety of conditions.

Contrast Grid

Check compliance with WCAG 2.0 minimum contrast


A repository of Test Cases and Scenarios


An open-source web accessibility checker

online JSON formatting and processing tool with powerful functions

It Tools

Aggregated set of useful tools that every developer and tester may need once in a while.

JS & CSS Minifier

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

Google Jamboard

A free online collaborative whiteboard app

Text comparator

This simple yet effective tool helps you compare two texts, and reveals the similarities and differences.

Security List

Curated lists of tools, tips and resources for protecting digital security and privacy

Regex Vis

🎨 Regex visualizer & editor

JSON Visio

Visualize your JSON into interactive graphs.

Animate SQL

Online tool to see visualizations of SQL queries.

UI Bakery RegEx Library

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

Violating GDPR?

Enter a URL and this tool will tell you if the website is violating GDPR laws.


An online tool to help you easily generate, test, and refine your regular expressions.

Automated Software Testing...

Unit Testing, Coverage Criteria and Design for Testability.