Open an event page in Chrome, click the Floorcheck icon to open the side panel, and press “Scan lineup”. The first time you scan a website, Chrome asks whether Floorcheck may read it. A scan brings up to five previews; on a big lineup, press “Scan lineup” again for the next artists.

No AI decides anything in Floorcheck, and there’s no generated slop. Floorcheck doesn’t use AI to determine a party’s “vibe” or generate music recommendations. It’s all purpose-built page reading, search, matching and selection algorithms for finding the right artists and representative music.

That said, Floorcheck was built in collaboration with AI. I shaped the product: the idea, logic, UX/UI, visual style, music-selection approach, copy, testing and final decisions. ChatGPT and Claude handled most of the engineering, turning those decisions into code and helping build, test and debug it. And, of course, they wrote most of the legal copy, because only machines can write stuff like that.

The only neural network is the open-source text recognition (Tesseract) that reads a lineup when it’s only a picture. It runs inside the extension, on your device: the picture goes to no server or AI service, and nothing is stored or learned.

Event pages with a lineup or a schedule, on most event and club websites. Floorcheck works best when the lineup is text, in its own section apart from the event description. A lineup that is only a picture works too, as long as its text is reasonably readable; the picture is read inside the extension. If Floorcheck can’t find the lineup, paste the names with “Add manually”.

Floorcheck looks for the artists on the lineup. When a party names only a genre or an era, there is less to go on, and the results are fewer and less certain. Floorcheck is also about helping artists find their listeners, so the people on the lineup come first.

For each artist, Floorcheck looks on SoundCloud for a recent set or mix that shows how they sound now, and a recording of the event itself when there is one. Each starts at a lively moment rather than the intro, in SoundCloud’s own player.

It’s not an official mix of the event, nor a prediction of the tracks that will be played: just a quick idea of the sound. A big lineup gets five artists per scan; press “Scan lineup” again for others.

Floorcheck is meant to give you a broad slice of a party’s sound, a quick preview of the whole night, not to become yet another music player. Five artists from across the lineup are usually enough to tell whether it’s your kind of party.

Fewer previews also load faster and ask less of SoundCloud, which Floorcheck shares with everyone else using it.

Floorcheck prefers to show nothing if it can’t confidently match an artist with a suitable recording. The artist may not have suitable material on SoundCloud, the search may not find it, or the name may be too ambiguous. That’s why some scans don’t cover the full lineup.

Some events handle lineups differently: the lineup may not be finalized yet (TBA), be announced only on the day of the event, or not be published at all. Exhibitions, talks and other events without music get nothing.

Floorcheck tries to respect everyone involved as far as it can. It reads only the event page you have opened yourself, and only when you press “Scan lineup”; it doesn’t crawl websites in the background or collect event listings. The music is played in SoundCloud’s own player, never downloaded or re-hosted, and every preview leads back to the recording on SoundCloud.

If you’re a club, promoter or artist and feel something here isn’t right, please write to milkschorle@gmail.com. I’ll look into it. More in Legal.

If a website doesn’t let Floorcheck read its pages, you can still type or paste the lineup with “Add manually”. Nobody has banned looking up artists on the internet yet.

Floorcheck is completely free. It has no accounts, no ads and no tracking, and it doesn’t ask for your personal data in exchange for using it. It doesn’t sell tickets either: you buy them on the event’s own page.

The player only starts artists’ recordings at a representative moment. If you want to listen to the full set or the artist’s other recordings, you can continue on SoundCloud.

Floorcheck is in beta. If you’d like to try it, write to me on Telegram and I’ll give you access. It would help a lot if you report clear mistakes and oddities, both in the extension and in the artists it picks. The search relies on heuristics that are far from perfect, and a page doesn’t always give an exact link to the artist’s profile. Together we can make Floorcheck work better.

Found a wrong artist, a wrong recording, a lineup read wrong or nothing found? Press “Report” in the extension: under the results, or next to “Scan lineup” when a scan finds nothing. Add a comment or the right artist’s link if you can. The report goes with the scan, so I can see exactly what Floorcheck did and where it screwed up.

For questions, complaints or suggestions, email milkschorle@gmail.com.