I Built 22 Free Developer Tools in a Single Website (No Login Required)

TL;DR: I built DevToolkit — a collection of 22 free browser-based tools for developers. No signup, no ads, no tracking. Everything runs locally in your browser. → lucasmdevdev.github.io/devtoolkit Why I built this I was tired of: Tools that require signup to use a JSON formatter Sites with 5 cookie banners before you can use a regex tester Tools that send your data to a server (your JWT shouldn't leave your browser) Slow, heavy tools when you just need to encode some Base64 So I built everything I needed in one place. What's in it Formatters JSON Formatter — format, validate, syntax highlight Markdown Preview — live preview with HTML export CSS Formatter — beautify or minify your CSS SQL Formatter — format SELECT/INSERT/UPDATE with keyword casing options Encoders / Decoders Base64 — encode/decode text and files URL Encoder — percent-encode/decode URLs JWT Decoder — inspect token header, payload, expiration (100% local) HTML Encoder — escape/unescape HTML entities Converters Color Conve