BPM Finder
Find the BPM of any song online — free, instant, no upload.
100% in your browser — nothing is uploaded
BPM Finder
This free BPM finder detects the tempo of any song in beats per minute, directly in your browser. Drop in an MP3, WAV, M4A or FLAC and the tool decodes the file, measures the rhythmic pulse from the track’s energy, and returns an estimated song BPM in a couple of seconds. Knowing the tempo is the first thing you need for a surprising amount of work: beatmatching two records in a DJ set, cutting a video to the beat, layering a new part over an existing loop, setting a metronome before you record, or matching an AI-generated track to the pacing of an edit. Most online BPM detectors make you upload your file to a server first. This one analyses everything locally with the Web Audio API, so unreleased material never leaves your machine. The detector builds an onset envelope from the track’s energy and finds the most consistent beat interval by autocorrelation across a musical tempo range. Like every automatic tempo estimator it produces an estimate rather than a certainty: steady electronic music reads most reliably, while rubato playing, heavy swing and sparse ambient tracks can push any detector into reporting half or double the true tempo.
How to use the free bpm finder
- 1
Add your track
Drag in an MP3, WAV, M4A, OGG or FLAC file, or browse for it. Decoding happens locally — nothing is uploaded.
- 2
Let the BPM detector analyse
The tool measures the rhythmic pulse across the whole file and estimates the tempo in a couple of seconds.
- 3
Read and check the BPM
Take the number, and if it looks half or double what you expect, tap along to confirm which reading matches the beat you hear.
Made for AI music creators
Cutting a video to music, beatmatching a DJ set, or lining an AI-generated track up with an edit? Find the song BPM here in seconds, privately, then take the number straight into your project.
BPM Finder: what people search for
Most people searching for this do not want tempo alone: "key and bpm finder", "bpm and key finder" and "key bpm finder" are all searched more than the single-purpose phrasing, because you usually need both numbers before you can do anything with either. The rest of the demand splits by source file and by place — a song bpm finder, a bpm finder mp3, an mp3 bpm finder, a bpm finder online, a youtube bpm finder, a spotify bpm finder, a tempo finder, a bpm counter, a bpm analyzer, a song bpm detector. This page answers the tempo half in the browser; the key finder answers the other half, and running a file through both is what people mean when they search for a song key and bpm finder.
BPM Finder at a glance
- Runs
- Entirely in your browser
- Uploads
- None — files never leave your device
- Account
- Not required
- Cost
- Free, no watermark
- Output
- Lossless WAV where audio is exported
- Works offline
- After the page has loaded
Why it works this way
The bpm finder runs on your machine
This free BPM finder detects the tempo of any song in beats per minute, directly in your browser. Drop in an MP3, WAV, M4A or FLAC and the tool decodes the file, measures the rhythmic pulse from the track’s energy, and returns an estimated song BPM in a couple of seconds.
A free bpm finder with no signup
Cutting a video to music, beatmatching a DJ set, or lining an AI-generated track up with an edit? Find the song BPM here in seconds, privately, then take the number straight into your project.
What the bpm finder handles
The cases people actually bring to it.
Drop the audio file into this BPM finder and read the estimate. It analyses the track’s rhythmic energy locally and returns beats per minute in a couple of seconds, with no upload and no account.
It is a reliable estimate for steady, beat-driven music. Sparse, rubato or heavily swung tracks can fool any automatic detector into reporting half or double the real tempo, so tap along to confirm if a result looks unexpected.
Tempo is ambiguous by nature — a track at 140 BPM has a perfectly valid 70 BPM pulse inside it. Detectors pick the strongest periodicity, which is sometimes the half-time or double-time reading. Both are musically correct; pick the one that matches how you count the track.
No. The file is decoded and analysed entirely in your browser using the Web Audio API. Nothing is sent to a server, which is what makes this safe for unreleased material.
BPM Finder — frequently asked questions
How do I find the BPM of a song?
Drop the audio file into this BPM finder and read the estimate. It analyses the track’s rhythmic energy locally and returns beats per minute in a couple of seconds, with no upload and no account.
How accurate is this BPM detector?
It is a reliable estimate for steady, beat-driven music. Sparse, rubato or heavily swung tracks can fool any automatic detector into reporting half or double the real tempo, so tap along to confirm if a result looks unexpected.
Why does the BPM finder show half or double the tempo?
Tempo is ambiguous by nature — a track at 140 BPM has a perfectly valid 70 BPM pulse inside it. Detectors pick the strongest periodicity, which is sometimes the half-time or double-time reading. Both are musically correct; pick the one that matches how you count the track.
Does my audio get uploaded anywhere?
No. The file is decoded and analysed entirely in your browser using the Web Audio API. Nothing is sent to a server, which is what makes this safe for unreleased material.
Which file formats does the BPM finder support?
MP3, WAV, M4A, AAC, OGG and FLAC — anything your browser can decode. Very long files take slightly longer because the whole track is analysed rather than a sample.
What BPM are common genres?
House and techno sit around 120–130, hip-hop and boom bap 85–95, trap 130–150 felt as half time, drum and bass near 174, and lo-fi 70–90. Ballads typically fall between 60 and 80.
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BPM Finder
Find the BPM of any song online — free, instant, no upload.