BPM Finder and Key Finder
A free online BPM finder and key finder for your audio files. Check BPM, musical key and more, right in your browser.
Free to use. No account needed. Your audio stays on your device.
find bpm Features
Why choose find bpm as your BPM finder?
Use find bpm to explore tempo, key and musical character in one place — free, easy to use and without uploading your audio.
Built for accurate analysis
The BPM finder uses dedicated audio algorithms to estimate the beat rate from the sound itself. Analyze your actual recording, rather than relying on a song title or a database match.
Your music stays private
With find bpm, your audio is analyzed on your device and never uploaded to our servers. Keep unreleased tracks, personal recordings and original ideas in your hands.
Drop a file. Get started.
Choose an audio file or drag it onto the page. Analysis starts in your browser, with no app to install, account to create or settings to configure.
More insight into every track
See BPM, musical key and Camelot code alongside energy, danceability and happiness scores. Explore both the tempo and the estimated character of your music in one view.
Free, from start to finish
Use find bpm without a subscription, credits or a payment card. BPM, key and music scores are all included for free.
Results you can put to work
Copy your BPM with one click, or switch to half or double the tempo to match the beat you hear. Take the number straight into your music software or notes.
Who uses find bpm
A BPM finder for every way you use music
From preparing a DJ set to planning a dance class, find bpm helps you understand your audio before taking it into your next project. Analyze files one at a time, then use the results in your own tools and routines.
DJs & remix artists
Use the BPM finder to check each track’s beat rate, then review its key and Camelot code when preparing a set or remix. Note the results for each track to shortlist compatible tempos and keys, then use your DJ software and your ears to work out the transition.
Music producers & beatmakers
Analyze a sample, loop or reference recording before building a track around it. Use the estimated BPM to set a starting project tempo and the key finder result as a reference when choosing chords, bass lines or other samples.
Musicians & singers
Find the tempo of a song you want to learn and use it to set your metronome. Use the key finder before rehearsing a cover or practicing with a backing track, then confirm the estimated key on your instrument or by ear.
Music teachers & students
Bring a concrete BPM and key into lessons on rhythm, scales and listening. Analyze a practice recording or lesson example, discuss what the results mean and check them together against the music.
Video editors & content creators
Check a soundtrack's tempo before planning cuts, motion graphics or scene changes. Energy and happiness estimates offer extra clues when choosing a mood; place the actual edits against the music in your video editor.
Dancers & choreographers
Find the pace of a rehearsal track when choosing music for a routine or class. Use BPM to plan practice speeds and danceability as an extra reference, then listen for the accents and phrasing that shape your choreography.
Fitness instructors & workout planners
Check the tempo and estimated energy of tracks for warm-ups, workout blocks and cooldowns. Record the results to help arrange music around your session, and choose the pace to suit the activity and participants.
Playlist curators & music enthusiasts
Explore the BPM, key, energy, danceability and happiness of audio files in your collection. Keep your own notes to group tracks by pace or feel and make more informed choices for your next playlist.
How It Works
How to use the BPM finder and key finder
Start with the audio version you actually plan to use, then take the results into your workflow.
FAQ
BPM finder and key finder: common questions
What does BPM mean?
BPM means beats per minute: the pace of the musical pulse. At 60 BPM, there is one beat per second; at 120 BPM, there are two. BPM describes speed, not loudness, so a quiet song can have a faster tempo than a loud one.
How accurate is this BPM finder?
The result is a tempo estimate, best checked against the beat you hear. A steady, clear pulse is easier to interpret than loose live timing, sparse percussion or a track that changes speed. For a practical check, enter the result into a metronome and listen for drift. The BPM finder returns one BPM value, not a map of tempo changes.
Why do I get 90 BPM when another tool says 180?
Both readings can describe different levels of the same rhythmic pulse. Listen to the beat you would tap along to, then choose ÷2 or 2× if needed. These controls change the displayed and copied BPM; they do not speed up or slow down the audio. The displayed value is rounded to a whole number.
What does the key finder tell me?
The key finder estimates the track’s musical key, which describes its tonal center. Camelot is another way to label that key: A codes represent minor keys and B codes represent major keys. For example, C major is 8B and A minor is 8A. Use these labels to shortlist tracks for a mix, then listen to the transition; a song can change key or have an ambiguous tonal center.
How should I read energy, danceability and happiness?
The scores are 0–100 model estimates from sampled sections of your track. Energy reflects an intense or aggressive musical character, rather than playback volume. Danceability estimates a dance-friendly character; happiness estimates a happy musical character. A score of 80 is not “80% happy” or a quality rating. Use the scores to compare tracks, then trust your listening.
Which files can I analyze?
Choose one MP3, WAV, FLAC or M4A file up to 100 MB. Audio must contain at least 6 seconds of sound for analysis. There is no maximum track-duration limit, although longer recordings take more memory and processing time. If a file cannot be decoded, export it as MP3 or WAV and try again.
Is it free, and will my audio be uploaded?
FindBPM is free to use without a login, subscription or credits. Your browser processes the audio locally, so the recording is not uploaded to our servers. An internet connection is used to load the website and analysis tools.
Why does the first track take longer?
Before the first result, your browser loads and prepares the analysis tools. Later files in the same session can reuse them. File length, device performance and the initial download affect the wait, and BPM and key can appear before the music scores finish.
Try the BPM finder and key finder
Choose your audio file to discover its BPM, musical key, energy and more. Free to use, with no sign-up and no audio uploads.