MusicWave analysis tool

Free BPM and Key Finder

Drop in a track to estimate its tempo, key, scale, Camelot notation, and meter in your browser.

Audio

Drop your audio hereDrag & drop your file here, or choose a file. We support MP3, WAV, M4A, AAC, FLAC, OGG up to 50MB.

Free and unlimitedAnalysis runs in your browser. Works best with a full mix; results are estimates.

Free and unlimited. Results are estimates; a full mix works best.

Add an audio file

0generation credits used

50 MBmaximum source file

6common audio formats

Localrecent analysis history

What the tool does

Estimate tempo and key without generation credits

Use the returned BPM, scale, Camelot code, and meter as estimates you can verify by ear.

Analyze common audio files

Use MP3, WAV, M4A, AAC, FLAC, or OGG audio up to 50 MB.

Estimate the tempo

See an estimated BPM and tempo label, then tap along or listen again when the rhythm is ambiguous.

Find key and Camelot notation

Get an estimated key, scale, and Camelot code for planning a mix or musical transition.

Keep recent results nearby

Reopen recent analyses stored for your browser or account without uploading the same file again.

Run the analysis in the browser

The page analyzes the selected file on your device rather than spending music-generation credits.

Check the estimate by ear

Tempo and key detection can be wrong on live, sparse, modulating, or rhythmically complex recordings. Verify the result before a final mix.

Three steps

Choose a supported file, run the browser analysis, and check the tempo and key estimates.

1
Choose the audio
Drop in a supported file from your device, up to 50 MB.
2
Run the analysis
Let the browser inspect the rhythm, pitch content, and other musical signals.
3
Review and copy
Check the BPM, key, scale, Camelot code, and meter, then copy what you need.

Before you start

Give the analyzer a clear musical section

Steady drums and audible harmony are easier to read than sparse intros, live timing, or songs that change key.

Analyze your track

Ways to use it

Prepare a mix, remix, or music library

Prepare a DJ transition

Compare tempo and Camelot notation before deciding which tracks may mix well together.

Set up a remix session

Use the estimate as a starting point for your project tempo and key, then line it up by ear.

Catalog a music library

Record tempo and key notes for tracks you want to sort, practice, or revisit later.

Social proof

What Users Say

Real feedback from DJs and producers using our BPM & key finder

Super accurate BPM detection! Makes mixing so much easier. I can instantly find the right tracks that match the tempo I'm looking for.

Jamie TorresClub DJ

The key detection is spot on! It's saved me countless hours when creating mashups. Now I know exactly which tracks will harmonically mix.

Tyler BeckMusic Producer

Essential tool for every DJ! Quick, accurate, and reliable. I use it to prep all my sets and organize my music library by key.

Nina PatelWedding DJ

Simple, transparent pricing

Start free. Upgrade when you need more.

Use code at checkout:

BPM & Key FinderNo credits usedFree on every plan

Free

Try it out — no card required.

$0/month

BPM & Key FinderUnlimited

20 free credits on signup
Up to 2 song generations
Free model access: Wave 4.5-all, Minimax 2.0, and Mureka 8
Unlimited AI lyrics generator
Unlimited BPM and Key checks
Streaming only — no downloads
Personal use only

No credit card required

Starter

Perfect for creation, image-to-song, and song extension.

$5.99/month$71.93 billed yearlyCredits added monthly · unused credits roll over until renewal

Save 40%

BPM & Key FinderUnlimited

All 7 model families

Wave 5.5 · ElevenLabs Music · Lyria 3 Pro · MiniMax 2.6 · Mureka 9 · Stable Audio 2.5 · MusicGen

1,000 credits per month (~100 songs)
All models: Wave 5.5, Minimax 2.6, Wave 5, Wave 4.5+, Wave 4, Wave 4.5-all, Minimax 2.0, and MusicGen
AI Cover Song Generator 🎤
Image to Song
Extend songs
Full-length songs (up to 8 minutes)
Stem splitter
Unlimited BPM/Key checks
Unlimited AI lyrics generator
Higher hourly generation limit
Unlimited song downloads
Multi-language support
Cloud storage
Personal use only

Cancel anytime · No lock-inUnused subscription credits expire at renewal or when the billing interval changes.

Pro

Best for commercial releases and advanced song editing.

$14.99/month$179.93 billed yearlyCredits added monthly · unused credits roll over until renewal

Save 40%

BPM & Key FinderUnlimited

All 7 model families

Wave 5.5 · ElevenLabs Music · Lyria 3 Pro · MiniMax 2.6 · Mureka 9 · Stable Audio 2.5 · MusicGen

3,000 credits per month (~300 songs)
Everything in Starter
MP3 & WAV downloads (WAV for Wave models)
Remix songs
Replace song sections
Add vocals to instrumentals
Audio Mastering
MIDI Editor
Even higher hourly generation limit
Priority generation queue
Commercial license
Downloadable license PDF

Cancel anytime · No lock-inUnused subscription credits expire at renewal or when the billing interval changes.

Creator

For power users working across MIDI, video, and high-volume output.

$29.99/month$359.93 billed yearlyCredits added monthly · unused credits roll over until renewal

Save 40%

BPM & Key FinderUnlimited

All 7 model families

Wave 5.5 · ElevenLabs Music · Lyria 3 Pro · MiniMax 2.6 · Mureka 9 · Stable Audio 2.5 · MusicGen

7,500 credits per month (~750 songs)
Everything in Pro
MP3 & WAV downloads (WAV for Wave models)
Voice Personas
Audio to MIDI
AI Music Videos
Our highest hourly generation limit
Access to beta features
Priority email support

Cancel anytime · No lock-inUnused subscription credits expire at renewal or when the billing interval changes.

FAQ

BPM & Key Finder FAQ

Straight answers about the current tool, its limits, and what happens next.

What audio formats can I analyze?

Upload MP3, WAV, M4A, AAC, FLAC, or OGG files up to 50MB for instant analysis.

How accurate is the BPM detection?

Our AI provides highly accurate BPM readings for most genres. Complex or shifting tempos may require manual verification.

What is Camelot notation?

The Camelot Wheel is a DJ tool that assigns each key a number (1–12) and letter (A for minor, B for major). Adjacent keys mix harmonically.

Can I analyze multiple tracks at once?

Currently, you analyze one track at a time. Your recent analyses are saved in history for quick reference.

Do I need an account to use this tool?

You can analyze tracks for free without an account. Sign up for unlimited history and faster processing.

Why can a BPM result look doubled or halved?

Some rhythms can be counted in half-time or double-time. For example, the same pulse may feel like 70 BPM or 140 BPM, so choose the value that matches the beat you hear.

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