About Fold

Fold is a small set of document tools built around one idea: your files should never have to leave your device to be compressed, merged, split, or converted.

Every tool runs in your browser, using Web Workers so the page stays responsive even on large files. There's no account, no upload step, and no ad-supported clutter — you open a tool, do the thing, and leave.

The full source is available on GitHub. See the privacy page for exactly what does (and doesn't) happen with your data.