
WebToolKit.tech
Convert Case
JSON Formatter & Validator
DevToys
Base64Encode.dev
CipherKit.app
A.Tools
T00lz
RequestHeaders.com
Live HTTP Headers
HTTP Headers
HTTP Toolkit
httptools.dev
HTTP Debugger
Fiddler
HttpWatch
ToolKit is a collection of free online utilities built for developers, designers, and everyday users. Every tool runs entirely in the browser using Web APIs โ nothing is sent to a server. The toolkit includes a cryptographically secure password generator (with 20+ specialized variants for WiFi, banking, SSH, and more), a word counter with keyword density analysis, a JSON formatter and validator, a regex tester with live match highlighting, a QR code generator with PNG/SVG export, a color converter (HEX/RGB/HSL/CMYK), Base64 encoder/decoder, UUID v4 generator, hash generator (SHA-256/512), URL encoder, case converter, lorem ipsum generator, markdown editor with live preview, color palette generator, and a username generator. Built with Next.js and TypeScript, deployed on Vercel. New tools added regularly.
Check HTTP Status Codes, SSL Validation, WWW Authentication, Redirects, Access Control, Cache Control, Content Encoding, Cookie Data and more...
WebToolKit.tech
RequestHeaders.comConvert Case - Instantly convert text to UPPERCASE, lowercase, Title Case, sentence case, and more - free, fast, and no sign-up required.
Live HTTP Headers - The goal of this project is to adds information about the HTTP headers in three ways:
JSON Formatter & Validator - The JSON Formatter was created to help with debugging.
HTTP Headers - HTTP Headers allows you to quickly see the HTTP header information for the current URL.
DevToys - A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.
HTTP Toolkit - Beautiful, cross-platform & open-source tools to debug, test & build with HTTP(S). One-click setup for browsers, servers, Android, CLI tools, scripts and more.