--- title: Mix Timestamper canonical: "https://d9d.dev/lab/mix-timestamper/" pubDate: "2026-07-23T00:00:00.000Z" updatedDate: "2026-10-27T00:00:00.000Z" description: "Paste a DJ mix tracklist and the mix length, get the tracklist with timestamps in seconds. Also a Telegram bot." tags: [php, javascript, music, tooling] categories: [lab] --- Writing timestamps for a two-hour mix by hand is the least interesting part of publishing one. This tool does it: paste the tracklist and the length of the mix, get every track with the time it starts, ready for a description. It looks up how long each track is — Deezer first, then iTunes, MusicBrainz and Last.fm — and then fits the tracks into the mix from both ends at once, so the overlaps of a DJ set don't pile up into an error at the end. No accounts and no database: the only thing it keeps is a cache of track lengths. The same thing works as a Telegram bot, [@mixtimestamp_bot](https://t.me/mixtimestamp_bot). The interface is in English.