Privacy

The short version: your files never leave your device, and we do not know who you are.

Your files

Every tool on this site processes files inside your browser. Files are read from your disk into memory, converted there, and offered back to you as a download. No file, file name or file content is ever transmitted to Stayput or to anyone else. You can verify this with your browser's network inspector, or by loading a tool, disconnecting from the internet and using it. Every tool page also counts the requests it makes after you add files and shows you the list.

What the site loads

• The pages, scripts and styles of this site, served from our host (Vercel).
• On the HEIC pages only, the libheif WebAssembly decoder is fetched from the jsDelivr CDN. That request downloads the decoder program; it carries none of your data.
• A small usage-counting script from our own self-hosted Umami instance, described below.

That is the complete list. There are no advertising scripts, no fonts from third parties and no cookies.

Usage counting

To know whether anyone uses Stayput, we count page views and tool runs with Umami, an open-source analytics tool we host ourselves. It sets no cookies, stores no identifier for you and does not follow you across sites. A tool run is recorded only as: which tool, whether it succeeded, and rough buckets for the number of files (for example "2-5"), their total size (for example "1-10MB") and how long it took. File names, file types and file contents are never recorded. If your browser sends a Do Not Track or Global Privacy Control signal, nothing is recorded at all. The resulting numbers are public, so you can see exactly what is collected.

What we can see

Our host keeps standard, short-lived server logs of page requests (the page URL, your IP address and browser type) for security and capacity purposes. We do not add anything to that. We cannot see which files you use, how many, or what is in them, because that information never reaches a server.

Offline storage

To work offline, the site asks your browser to cache its own pages and scripts using a service worker. This cache contains only the site's code, never your files. You can clear it at any time from your browser's site settings.

Open source

The full source code is at github.com/keenanlk/stayput, so anyone can confirm the above.

Last updated September 25, 2026.