Real-time key & BPM
for producers who move fast.
Drop Riftly into your workflow and instantly know the key and BPM of anything playing on your Mac — no tapping, no guessing, no interruptions.
Free forever · No account needed · macOS 12+
See it in action
Four things no other tool does together.
Click the tabs to explore the Detector and Sampler — the full app runs natively on macOS.
Live Detection
Key, BPM + Camelot in <200ms from any audio on your Mac. No file import.
Sample Chopper
Upload or record audio. Auto-slice by transient or BPM. Assign slices to keyboard keys.
Piano Roll
Sequence slices into a full arrangement. Loop, adjust BPM, export — without leaving Riftly.
Sample Detective
Melodic fingerprinting across your local library. Find harmonically compatible samples instantly.
Features
Every tool a producer needs
Riftly sits quietly in your menu bar, analysing audio in real-time — so you can stay in flow.
Live Key Detection
Instantly identify the musical key of any audio playing on your Mac. Works with any DAW or streaming service.
Live BPM Tracker
Accurate tempo detection in real-time. Lock into any track's BPM without tapping or guessing.
These Notes Belong To
See exactly which notes belong to the detected key. Build melodies and chords that always sound right.
Camelot Wheel
Harmonic mixing made simple. Find compatible keys instantly with the Camelot Wheel overlay.
Record & Analyse
Capture any session and review the key and BPM history. Never lose a creative moment.
Sample Library
Browse and tag your samples by key and BPM. Find the perfect loop in seconds with Riftly Sampler.
Editions
Pick your level
Always free
Riftly Free
- ✓ Live Key Detection
- ✓ Live BPM Tracker
- ✓ 1 session history
- ✓ macOS 12+
$4 USD/mo or $45 USD lifetime
Riftly
- ✓ Live Key Detection
- ✓ Live BPM Tracker
- ✓ These Notes Belong To
- ✓ Camelot Wheel
- ✓ Unlimited session history
- ✓ Record & Analyse
$7.50 USD/mo or $85 USD lifetime
Riftly Sampler
- ✓ Everything in Riftly
- ✓ Full Sample Chopper
- ✓ Auto-slice by transient or BPM
- ✓ Assign slices to keyboard keys
- ✓ Piano Roll — sequence & export
- ✓ Melodic fingerprinting
- ✓ Library-wide harmonic search
What producers say
Built for real workflows
“Riftly completely changed how I find samples. I used to spend 20 minutes guessing keys — now it's instant. This is the tool I didn't know I needed.”
DJ Kase
Producer, Melbourne
“The Camelot Wheel integration alone is worth it. My mixes are tighter, my session prep is faster. Riftly is open every time I sit down to produce.”
Lauren T.
Beatmaker & vocalist
Start free. Upgrade when you're ready.
Download Riftly Free today — no account, no credit card. When you want more, upgrading takes 60 seconds.
macOS 12 Monterey or later required