About Devtools

Devtools is a growing collection of developer utilities — formatters, encoders, converters, generators, and reference tools — that run entirely in your browser. It exists because the tools most of us reach for a dozen times a day are scattered across ad-heavy sites of wildly varying quality, and too many of them quietly send whatever you paste to a server you know nothing about.

What we optimise for

Privacy. Every tool that can run client-side does. When you format a JSON payload, decode a JWT, or hash a string here, the data never leaves your device — there is no upload, no logging, and the tools keep working with your network disconnected. The only features that touch our server are the ones that genuinely need it (DNS and SSL lookups, URL previews) and the contact form.

Documentation. Each tool page is written to teach something — the edge cases, the relevant standard, the mistake that costs you an afternoon. If a page could have been produced by find-and-replace on another one, it doesn’t ship.

Speed. Pages are statically generated and ship almost no JavaScript for the documentation itself; each tool’s interactive bundle is loaded only when you use it. There are no third-party trackers slowing things down.

How it’s built

The tool logic is written as small, dependency-light, well-tested functions, cleanly separated from the interface. That same logic powers the web UI today and will power a public API later, so the behaviour you rely on stays consistent.

What’s next

The catalogue is expanding steadily toward a hundred-plus tools, with a supporting blog and a public REST API planned. If there’s a tool you want or a bug you hit, the contact page reaches a human.