Analyze your DJ set’s energy curve — and fix the order before you play

EnergyCurve analyzes the order of a DJ set. It imports your playlist, resolves each track’s BPM, musical key, and energy, scores the whole set from 1 to 10, draws its energy curve, and lists the specific track moves that would improve it. You apply the moves and export the corrected order back to your DJ software.

For the whole set. Mixed In Key’s familiar 1–10 rates each individual track’s energy; ours rates how well the set is put together — its energy flow, its arc, the size of the jumps between tracks. A set full of 9-energy bangers can still score 4 out of 10, because playing nine peaks in a row isn’t a journey. Per-track energy is shown separately, next to each track.

Import and export both work with Rekordbox (XML), Traktor (NML), M3U8 playlists, Rekordbox text exports, and CSV. You can also drop in your audio files directly, or paste a plain tracklist. Serato support is on the roadmap.

No. When you pick audio files, EnergyCurve reads their tags in your browser and only the resulting text data (artist, title, BPM, key, energy) is sent to the server. The audio itself never leaves your computer.

EnergyCurve degrades gracefully: it uses your manual value first, then the tag, then a genre-anchored estimate from BPM, and finally a position-based estimate. Every value shows which source it came from, so you always know what’s measured and what’s inferred. You can also type any value in by hand.

There is a free tier, and there always will be. Paid plans — PRO at US$9.99/month and PRO+ at US$19.99/month, with roughly two months free on annual — are available now and unlock real audio analysis, unlimited playlists, and unlimited AI ordering. Your card statement will read “StageLink LLC”.

Because EnergyCurve is part of the StageLink suite and is operated by StageLink LLC, the company behind it. Payments are processed under that name, so “StageLink LLC” is what appears on your card statement and receipts. It’s the same company that builds EnergyCurve.

No, it sits between them. Mixed In Key tells you what each track is; Rekordbox stores and plays them. EnergyCurve is the only one that analyzes the set as a whole — its narrative arc — and tells you what to change. It works alongside whatever you already use.

All of them. Genre sets the expected BPM and energy band — techno, house, drum & bass, and more are built in — and you can create your own genre and set context (opening, main time, closing) if the presets don’t match what you play.