Compare two tracks, side by side
BPM, key, and loudness of two songs in one view — see instantly whether they'll mix. Free, private, right in your browser.
Track A
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Track B
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Why compare two tracks before you combine them
Whether you're blending a track into a DJ set, matching your song against a reference, or checking a remix against the original, the question is the same: do these two tracks actually fit together? Tempo mismatches make beatmatching painful, key clashes make layered audio sound wrong, and loudness gaps make one track drown the other. Comparing them side by side answers all three before you commit.
What gets compared
Each track is analyzed for BPM (tempo), musical key (all 24 major/minor keys), and integrated loudness (LUFS). The comparison then shows the tempo difference, whether the keys match, and the loudness gap in LU — the three numbers that decide whether two tracks can be mixed, layered, or sequenced cleanly.
Comparing Suno & Udio tracks
Generated two versions of a song and can't tell which is louder or whether the regeneration changed the key? Comparing AI-generated takes side by side shows exactly what changed between versions — without loading both into a DAW.
How to compare two songs
Two steps: drop a file in each slot. Everything happens locally in your browser — your tracks are never uploaded to a server.
1. Drop both tracks
MP3, WAV, FLAC, or M4A in each slot. Files are decoded and analyzed with the Web Audio API — nothing leaves your device.
2. See the side-by-side
BPM, key, and LUFS for both tracks in one table, plus a plain-language summary of the differences.
3. Decide with confidence
Mix them, pick the better take, or fix the gap — then head over to mastering and a lyric video for the winner.
What people use audio compare for
Any decision that involves two tracks gets easier when you can see their specs side by side.
Matching a reference track
Compare your song against a commercial reference to see how far off your loudness is and whether the keys are compatible.
Picking between versions
Two takes of the same Suno song? Compare them to see which is louder, whether the regeneration shifted the key, and which one to keep.
Planning DJ transitions
Check the BPM gap and key compatibility between two tracks before you put them next to each other in a set.
Frequently asked questions
Comparing tracks, answered.