Ground rules for using xx808

Revised October 8, 2026.

The short deal

The tools are free, they run on your own device, and what you make with them belongs to you. In return, please use them lawfully and don’t try to knock the site over or hammer its small API.

Making music with it

Use xx808 for hobby tracks, client work, teaching or anything in between — commercial use is fine. The MIDI files, drum loops and patterns you create are yours outright.

Other people’s recordings

Only feed in audio you’re entitled to work with. Turning a recording into MIDI doesn’t hand you the rights to the song underneath it, and replaying or sampling someone else’s work can still require their permission. Clearing that is on you.

Estimates, not guarantees

Detected tempo, key and notes are educated guesses made by software, and they can miss. xx808 comes as it is, with no promise that it suits any particular purpose or will always be available. Listen back before you rely on a result.

When things go wrong

Because the service is free and the processing happens on your hardware, xx808 can’t take responsibility for lost work, missed deadlines or other knock-on losses that come from using it. Wherever the law lets a free service cap what it owes, that cap is zero dollars.

Borrowed parts and names

A few features rely on open-source projects under their own licenses, listed on the about page. Roland and TR-808 belong to Roland Corporation, and Spotify belongs to Spotify AB; neither company has anything to do with xx808.

Revisions

If these rules change, this page is updated and the revision date above moves forward. Carrying on with the tools afterwards counts as accepting the new version.

Questions

Ask at hello@xx808.com.