One-line description
SignalKey is a free AI-powered music analysis platform — BPM, key, stems, MIDI and mastering checks, no signup required.
One-paragraph description
SignalKey is a free, no-signup AI music analysis platform built for producers, DJs and creators. Drop any audio file and the same engine extracts BPM, musical key, Camelot wheel position, full chord progression, four-stem AI separation, melody and chord MIDI, plus a BS.1770-compliant mastering report with per-platform pass/fail. The full Studio sits at signalkey.io, and 16 dedicated tool pages serve single-purpose questions for users searching for "BPM finder", "key finder", "vocal autotune" or "vertical clip maker" online.
Key facts
- Founded: 2026
- Free tools: 16 single-purpose + full Studio
- AI engine: librosa + Spotify Basic Pitch + Demucs (via Replicate) + pyloudnorm
- Privacy: uploads are processed in-flight and never stored
- Pricing: Free forever (daily caps); Studio $19/mo unlocks the workbench, 24-bit WAV stems, saved sessions, batch + API
Brand assets
We don't ship a downloadable press kit yet — SignalKey is brand- new and the wordmark is still in motion. If you're writing about us and need logos, screenshots, or any other asset, email press@signalkey.ioand we'll send a tailored bundle the same day.
Brand colours
| Token | Hex | Usage |
|---|---|---|
| Lime | #B7F34B | Analyze tool · brand primary |
| Teal | #1FB7A6 | Analyze gradient secondary |
| Blue | #6495ED | Stems / Key |
| Violet | #9370DB | Camelot / Stems |
| Amber | #FFBA49 | Mix / LUFS |
| Rose | #FF4B64 | Release / Tempo |
Approved quotes
"SignalKey gives away professional-grade music analysis for free, with thoughtful ads that respect what the user came for." — SignalKey founder
"Our north star is: a producer asking 'what BPM is this?' should get an answer in 30 seconds, not 30 hoops." — SignalKey founder