Question 1

Is this BPM finder free?

Accepted Answer

Yes, every feature here is free: full-track analysis, decimal-precision results, half/double-time correction, the confidence score, click-track verification, tap tempo, batch analysis, CSV export, and BPM tag export. Tunebat's own Analyzer keeps Download Results and Analysis Configuration behind a €6.99/mo Pro plan and runs ads on its free tier, and freebeat.ai caps free use at five analyses a day. Neither limit exists here, and nothing on this page is a paid upsell.

Question 2

How do I find the BPM of a song with this tool?

Accepted Answer

Drop an audio file into the upload area above, or click it to browse for one. This tool decodes and analyzes the whole track in your browser and shows its tempo, in beats per minute, within a few seconds, with no account and no configuration screen first.

Question 3

Is my audio file uploaded anywhere, or does it stay on my device?

Accepted Answer

It stays on your device. Decoding and tempo analysis both run through the Web Audio API directly in your browser, and this tool doesn't have a server to send a file to in the first place. "Upload" in the interface just means picking a local file for that in-browser analysis, never a network transfer.

Question 4

How accurate is this BPM detector?

Accepted Answer

If you're asking how accurate is a bpm detector in general, or specifically about this tool's own bpm finder accuracy, treat the answer the same way: as a strong estimate refined across the whole track, not a lab measurement. This tool doesn't claim a flat accuracy percentage the way some competitors do (thebpmfinder.com's "99.5% Accuracy" badge, for one, has no test set or methodology behind it anywhere on its page), because accuracy genuinely depends on the source: a quantized, produced track can be measured to a hundredth of a BPM, while a live take with real tempo drift has no single true BPM to promise decimals on. What you get instead is a confidence score on every result, and a click-track you can actually listen to before trusting the number.

Question 5

Why did this tool show double or half the BPM I expected?

Accepted Answer

That's octave error, the most common failure mode in any autocorrelation-based tempo detector, including this one before its own automatic correction runs. If you've landed here searching bpm detector wrong, bpm shows double, or why is my bpm half, it's the same underlying cause: the detected rhythm locked onto a subdivision, like hi-hats splitting each beat in two, or a half-time kick pattern, instead of the beat itself. This tool corrects it automatically when the evidence supports a better tempo, and always leaves ×2/÷2 buttons next to your result so you can flip it yourself if it's still off.

Question 6

Will the BPM this tool gives me match my DAW's grid exactly, like in Ableton?

Accepted Answer

That's really an exact bpm for daw question, whichever DAW you use, and it's what the decimal-precision result and the click-track verification are built for. A whole-number BPM reading is the actual source of grid drift on a longer track: a fraction of a beat per bar compounds over hundreds of bars. This tool refines its estimate across every beat position it detects in the full track, then lets you play the track back with a synthesized click locked to that tempo, so you can hear directly whether it holds before typing it in. Whether you'd search this as bpm finder ableton or just getting a bpm to match grid in general, the same number and the same click-track check apply.

Question 7

Can I find a BPM without uploading a file?

Accepted Answer

Yes. Switch to Tap Tempo above and tap along to the beat, on the button or with your spacebar. It's the same decimal-precision calculation as the upload mode, just built from your taps instead of a detected onset, so whether you think of it as tap bpm, a tap tempo calculator, or a way to find bpm by tapping, this mode is built for exactly that.

Question 8

Can I analyze more than one song at once?

Accepted Answer

Yes, this doubles as a batch bpm analyzer: drop multiple files into the upload area and each one is analyzed on its own; results appear in a table with per-file BPM, confidence, and octave controls, and the whole batch exports as a CSV. That covers a bpm finder multiple files or analyze multiple songs bpm need directly. thebpmfinder.com offers something similar capped at 20 files; there's no cap here.

Question 9

Can this tool add the detected BPM to my MP3's tag?

Accepted Answer

Yes, for MP3 and FLAC files. Once a file is analyzed, download it with the detected BPM written into its ID3 tag (MP3) or Vorbis comment (FLAC): the same job as add bpm to mp3 tag, write bpm to id3 tag, or a standalone bpm tag mp3 tool, ready to re-import into tag-reading DJ software like Serato, Rekordbox, or Traktor without retyping the number.

Question 10

What audio formats does this tool support?

Accepted Answer

MP3, WAV, FLAC, OGG, M4A/AAC, and AIFF, with no file-size cap beyond a soft warning on very large files for your own browser's memory.

Question 11

Does this tool also detect the musical key?

Accepted Answer

No. Key is a tonal property, worked out from pitch and harmony, while BPM is a rhythmic one worked out from timing, so measuring one doesn't give you the other. If you need a track's musical key, look for a dedicated key-finder tool.

Question 12

Does this work on mobile?

Accepted Answer

Yes. Upload, batch analysis, tap tempo, click-track verification, and tag export all work on any modern mobile browser.

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