About HubUtil
HubUtil is a collection of 66 browser-based utility tools. Every tool runs on your device, with no accounts and no uploads.
How it works
Each page ships as plain HTML and loads only the JavaScript that its tool needs. Text, images and files are processed in your browser — heavy work runs in a Web Worker so the page stays responsive.
Private by design
There is no backend and no database. Nothing you type or open is sent anywhere, so there is nothing for us to store, log or lose.
Works offline
Once a page has loaded, most tools keep working without a connection. Tools that need a large model download it only when you ask them to.
What's inside
66 tools across 5 categories.
Feedback
Found a bug or want a tool added? Send a note to hello@hubutil.dev.