HTTP Debugger
Surge for Mac
Weer
Charles Proxy
James
HTTP Headers
HTTP Toolkit
mitmproxy
WebToolKit.tech
Convert Case
JSON Formatter & Validator
DevToys
Base64Encode.dev
CipherKit.app
A.Tools
T00lz
HTTP Debugger is a professional HTTP sniffer and analyzer for developers.
You can use HTTP Debugger to debug HTTP API calls to a back-end and between back-ends.
HTTP Debugger is very easy of use, with clean UI, and short ramp-up time.
It's not a proxy, and does not produce network issues!
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.
HTTP Debugger
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Surge for Mac - Advanced Web Debugging Proxy for Mac & iOS
Convert Case - Instantly convert text to UPPERCASE, lowercase, Title Case, sentence case, and more - free, fast, and no sign-up required.
Weer - A HTTP protocol debugger with Chrome DevTools frontend interface
JSON Formatter & Validator - The JSON Formatter was created to help with debugging.
Charles Proxy - HTTP proxy / HTTP monitor / Reverse Proxy
DevToys - A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.