Prep your whole library in minutes, not weekends.
CueStem AI sets the BPM, key, beatgrid, hot cues and loops on every track — without uploading your music. Optional AI Grid Fix and Stem Splitter upload only the tracks you choose, using their own allowances.
About 12 minutes of hand prep saved per track.
Three tools. Use only what you need.
Crate Prep
Point it at a folder or USB stick. Tracks get estimated BPM, key, a beatgrid, hot cues and loops — worked out on your own computer. The Free trial preps the first tracks; the rest wait for an upgrade.
Free: 2 tracks to try · Crate $4.99 / £3.99 / €4.99/month: unlimited
Grid Fix
Drop or select individual tracks, or choose flagged tracks after a crate scan. AI re-tracks beats and bars; only your chosen audio is uploaded.
Free: 1 to try · Pro: 60 a month
Stem Splitter
Pick the tracks you want for a set. Get vocals, drums, bass and melody as separate files, ready to drop back into your library.
Free: 1 to try · Pro: 60 a month
The time it takes by hand
Typical time to estimated hand-preparation time for one track in your DJ software, compared with a Crate Prep scan.
| Per track | By hand | CueStem |
|---|---|---|
| Check BPM and the beatgrid | 3 min | Automatic, flagged if unsure |
| Set 6–8 hot cues on intro, drops, breakdown, outro | 5 min | Automatic |
| Set intro, drop and outro mix loops | 2 min | Automatic |
| Find the key and tag it | 2 min | Automatic |
| Total | ~12 min | Seconds, plus a quick check |
50 tracks by hand
≈ 10 hours
Back to you for mixing
200 tracks by hand
≈ 40 hours
Back to you for mixing
500 tracks by hand
≈ 100 hours
Back to you for mixing
How it works
- 1
Tell us your setup
Optional: choose your DJ software and genres. Change them later in Account → My setup.
- 2
Scan your crate
Select a whole folder or drive. Local scanning shows progress, with Pause, Resume and Stop. Reselect after refresh.
- 3
Finish Library Step 1
Run free tempo fixes, choose AI fixes, or confirm partial preparation. Wait for chosen jobs to finish; Step 1 then shows Complete.
- 4
Export through your DJ app
Step 2 exports to your desktop DJ software. For XDJ/CDJ playback, use rekordbox desktop to export the playlist and music to USB next.
Step-by-step guides: rekordbox, Engine DJ and Traktor import · Serato
Free
$0
- Crate Prep: 2 tracks to try — BPM, key, grid, cues, loops, nothing uploaded
- Stem Splitter: 1 track to try
- Grid Fix: 1 track to try
- 3 AI Grid & Cue Checks a day
Crate
$4.99 per month
- Unlimited Crate Prep — whole USB sticks and folders, nothing uploaded
- BPM, key, beatgrid, hot cues and loops on every track
- rekordbox, Serato (beta), Engine DJ and Traktor exports
- Free half/double tempo fixes and clear preparation status
Pro Monthly
$12.99 per month
- Everything in Crate, plus AI stems and grid fixes
- Stem Splitter: 60 tracks a month (500 minutes of audio)
- Grid Fix: 60 tracks a month (DnB, halftime, drifting tempos)
- 10 AI Grid & Cue Checks a day
Or $99 a year, or $249 once for Studio Lifetime.