Built by devs,
for devs.
DevKit4You is a passion project — 12 free tools, zero tracking, fully browser-side. We'd love to hear your feedback, bug reports, or tool requests.
This form is client-side only. Messages are not stored on any server.
DevKit4You started as a personal side project — a collection of tools that keep coming up in daily developer work. Base64, hashes, JSON formatting, JWT inspection — utilities that should be instant, private, and always free.
Every single operation runs in your browser using native JavaScript APIs. Nothing you type is ever sent to a server. No analytics. No cookies. No sign-up.
We're continuously adding new tools. If there's something missing from your workflow, let us know.