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Privacy Policy

Last updated September 22, 2026

Sleeve is built to collect as little as possible. There are no accounts, no passwords, no advertising, and (as of this writing) no analytics or tracking cookies of any kind. This page describes exactly what does and doesn't happen with your data.

What reaches Sleeve's server

When you paste a Spotify link, or type an artist and album, that text is sent to Sleeve's server so it can look up the release on MusicBrainz and, when needed, search Deezer's catalog for a matching edition. That's the extent of it: no account, email, or payment details exist to collect, because Sleeve doesn't have any of those features.

What never reaches Sleeve's server

  • Cover art. Once metadata comes back, your browser fetches the album artwork directly from Apple, Deezer and the Cover Art Archive. The images never pass through Sleeve's server at all.
  • Exported posters. PNG and PDF exports, and the 3D preview, are all rendered locally in your browser and saved straight to your device. Nothing is uploaded.

Hosting logs

Like effectively any web service, Sleeve's hosting provider may keep standard technical logs of requests (IP address, timestamp, page requested) for security and operational purposes. Sleeve doesn't read these for analytics, and they aren't linked to anything else.

Cookies & local storage

Sleeve doesn't set its own cookies. Whatever you're working on (the album you searched, your font and colour choices) lives only in your browser's memory for that visit and is gone when you close or reload the tab.

Third parties Sleeve talks to

Resolving an album involves a small number of outside services, each with their own privacy practices:

Sleeve never sends any request to Spotify; a pasted link is only ever parsed locally for its album id.

Children's privacy

Sleeve isn't directed at children under 13, and doesn't knowingly collect data from them.

Changes

If what Sleeve collects ever changes (say, analytics get added later), this page will be updated to say so plainly.

Contact

Questions about this policy: github.com/smartfoloo/sleeve.