About DevTools Hub
A collection of small, fast tools that do one job well and keep your data on your own machine.
Most online utilities ask you to upload something before they will help you. For a JSON payload from a production system, a photo from your phone, or a token from a live session, that is a poor trade. These tools make it unnecessary: the work happens in the page you are already looking at.
Your data stays with you
Every tool runs in your browser. Text you paste, files you drop and passwords you generate are never sent to a server, because there is no server to send them to — the whole site is static files.
It works without a connection
Once a tool page has loaded it keeps working offline. That is a side effect of doing the work locally rather than a feature bolted on, and it is the simplest proof that nothing is being uploaded.
No accounts, no limits
There is nothing to sign up for, no usage cap and no watermark on anything you produce. If a tool is here, it works fully on the first visit.
What's here
15 tools across 5 areas, each with a guide explaining the background rather than just the buttons.
- Developer — Inspect and debug the formats you work in every day.
- Encoding & Conversion — Move data between representations without losing anything.
- Security & Identity — Hashes, tokens, passwords and identifiers.
- Images & Design — Prepare images, colour and codes for the real world.
- Text & Writing — Count, measure and reshape written text.
How it works
The site is a static Next.js application. Every page is prerendered to plain HTML at build time, and the tools themselves are JavaScript that runs on your device using standard browser APIs — the Web Crypto API for hashing and passwords, a canvas for image work, the platform's own parsers for everything else. There are no API routes, no database and no analytics on your input.
The site does show ads, which is what pays for it. Ads are supplied by a third party and, like any ad network, they use cookies — that is separate from the tools themselves, which never transmit what you type.
Suggest a tool
The list grows based on what people ask for. If something you need is missing, or a tool here is close but not quite right, say so — it is the most useful thing you can send.
Get in touch