DevKit Forge is a small, hand-built workbench of the developer utilities you actually reach for — JSON, Base64, URLs, JWTs, regex, and hashes. No sign-up, no server round-trip, nothing leaves your browser.
Pinned to the board, ready to use.
Pretty-print, minify, and validate JSON — with inline error locations.
Open tool → 🔤Convert text or files to and from Base64, including UTF-8 safe handling.
Open tool → 🔗Encode or decode full URLs or individual query components safely.
Open tool → 🪪Decode a JSON Web Token's header and payload — no secret required.
Open tool → 🧵Test a regular expression live against sample text with match & group highlighting.
Open tool → 🔒Generate MD5, SHA-1, and SHA-256 hashes of any text, instantly.
Open tool →Most "online tools" sites are packed with ads, popups, and forty near-identical pages that all do the same thing. DevKit Forge is the opposite bet: a handful of tools, each one built properly, each one documented well enough that you're not left guessing why a JWT won't decode or why your regex isn't matching what you expect.
Everything here runs entirely in your browser. When you paste a token into the JWT decoder or hash a string, that data never touches a server — there's nothing to log because nothing gets sent anywhere. That's not a privacy feature bolted on for marketing; it's just how client-side JavaScript works, and it happens to be the safer default for anyone pasting in real tokens, real config, or real data.
We built this because we got tired of tool sites that bury the actual utility under content written to satisfy a keyword rather than a person. Each tool page here explains the "why," not just the "what" — the encoding rules, the edge cases, the things that trip people up. If something's unclear or broken, the contact page reaches a real inbox.