BPM Changer
Use an estimated original BPM and enter an exact target BPM.
BPM Changer Online
Change a song from its original BPM to an exact target tempo without changing the pitch. Upload audio, review the automatically suggested BPM, then preview and export your version in Audio Editor.
Automatic BPM estimate · Exact target BPM · Pitch preserved
After the file opens in Audio Editor, your browser suggests the original BPM. Check the value, correct it if needed, then enter the tempo you want.
Change a song to an exact target BPM
AudioMuse estimates the track’s current tempo, then calculates the exact speed change from your target BPM. The musical key stays where it is while the clip becomes shorter or longer.
- 1Detect
Review the suggested original BPM in the browser.
- 2Set
Enter the exact target BPM for your practice track, loop or backing music.
- 3Listen
Apply the change and preview important passages before export.
midnight-groove.wavPitch locked
Original BPM120Detected
Target BPM90Your setting
Speed0.75×
1-minute source1:20 result
KeyUnchanged
How to change the BPM of a song online
The editor handles the BPM calculation. You only need to confirm the detected tempo and choose the result you want.
Upload your audio
Choose a song or recording. It opens directly in Audio Editor with the target-BPM workflow ready for the selected clip.
Review and set the BPM
The browser suggests the original BPM. Correct it if the beat count looks wrong, then enter the exact target BPM you want.
Preview and export
Apply the BPM change, press Play to compare the result, then export your finished MP3, WAV or FLAC file.
Put the song at the tempo your task needs
Choose a practical workflow, then move from the detected BPM to a useful rehearsal, production or movement track.
Slow a difficult passage without changing its notes
Give yourself more time to hear and play every note while the recording remains in its original key.
- 1
Confirm the suggested original BPM
- 2
Choose a lower target, such as 120 to 90 BPM
- 3
Practise the passage, then raise the tempo gradually
Original120BPM
→Target90BPM
Learn the movement at counting speed
Reduce a track to a repeatable rehearsal tempo, then create faster versions as the choreography becomes familiar.
- 1
Start from the detected song tempo
- 2
Export a slower first rehearsal version
- 3
Move the target BPM closer to the original each session
Original128BPM
→Target96BPM
Match an accompaniment to the performance
Adjust a steady backing track for a singer, instrument lesson or live run-through without transposing the music.
- 1
Check the original BPM against the beat
- 2
Enter the tempo used in rehearsal
- 3
Preview the full song before exporting the backing track
Original105BPM
→Target100BPM
Move a known loop toward your session tempo
Scale a steady-tempo sample to a new BPM, then continue arranging it on the multitrack timeline.
- 1
Verify the loop’s suggested BPM
- 2
Enter your session BPM as the target
- 3
Trim, duplicate and place the adjusted clip on the timeline
Original110BPM
→Target124BPM
Change BPM without changing pitch
BPM describes musical pace. Pitch describes how high or low the notes sound. AudioMuse time-stretches the selected clip so you can change its BPM without intentionally moving it into another key.
Keep large tempo changes in check
Large changes can soften transients or make cymbals and exposed vocals sound less natural. Start with a moderate change and compare the preview before downloading.
| Original | Target | Speed | New length |
|---|---|---|---|
| 120 BPM | 90 BPM | 0.75× | 1:20 |
| 100 BPM | 120 BPM | 1.20× | 0:50 |
| 140 BPM | 70 BPM | 0.50× | 2:00 |
Speed & Pitch Changer
Choose a multiplier such as 0.75×, or adjust speed and pitch independently.
Change speed and pitchKey & BPM Finder
Analyze a track when you only need its key, Camelot code and tempo.
Analyze a songPitch Changer
Transpose a recording into another key while keeping its duration.
Change song pitchPreview the new tempo before you export
Your original file stays unchanged. Listen in context, then download the version that fits your workflow.
Correct the estimate
Tempo detection can occasionally land on half-time or double-time. Edit the suggested BPM when the beat count does not match what you hear.
Hear the result
Preview the changed clip with the rest of your timeline before committing to a new file.
Choose your format
Export MP3 for convenient sharing, or WAV and FLAC when you want to avoid another lossy encoding step.
BPM Changer FAQs
Automatic tempo estimates, target BPM, pitch preservation, export quality and browser processing.
Can AudioMuse automatically detect the original BPM?
Yes. After the file opens in Audio Editor, the browser analyzes it and suggests an Original BPM for the selected clip. Review that value before applying a change. Rhythmically ambiguous tracks can be interpreted at half-time or double-time, so you can correct the suggestion manually.
Can I change a song’s BPM without changing pitch?
Yes. Apply BPM uses pitch-preserving time-stretching, so changing tempo does not intentionally transpose the notes. The separate Pitch control stays at its current setting. Large tempo changes may introduce audible artifacts; preview important passages before exporting.
What if the detected original BPM looks wrong?
Listen to the beat and edit the Original BPM field before setting the target. A detector may hear 70 BPM as 140 BPM, or the reverse, because both values can describe the same pulse at half-time or double-time. The target calculation uses the corrected value you enter.
Can I use this as an MP3 BPM changer?
Yes. Upload an MP3, review its suggested original BPM, enter the target BPM, apply the change and export a new MP3. MP3 export is encoded at 192 kbps. WAV or FLAC avoids an additional lossy encoding step but cannot restore detail missing from the source.
How does changing BPM affect song duration?
A lower target BPM makes the selected clip longer, while a higher target BPM makes it shorter. Speed equals target BPM divided by original BPM. For example, changing 120 BPM to 90 BPM produces 0.75× speed, so a one-minute clip becomes 80 seconds.
What is the difference between BPM Changer and Audio Speed and Pitch Changer?
BPM Changer starts from an estimated Original BPM and calculates the speed needed to reach an exact Target BPM. Audio Speed and Pitch Changer lets you choose a multiplier such as 0.75× directly and can also transpose the clip. Both use the editor’s pitch-preserving tempo processing.
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Can it correct tempo drift or automatically align beats?
No. The selected clip is scaled evenly from beginning to end. It does not build a beat grid, move individual beats, correct a live performance that speeds up and slows down, or automatically align multiple tracks. Use it for songs, backing tracks, samples and loops with a reasonably steady tempo.
Is this online BPM changer free, and is my audio uploaded?
Changing tempo and exporting are free without an account. BPM analysis and audio processing run in your browser. Files can be up to 300 MB, and both imported audio and the resulting timeline must fit within 60 minutes. Optional project saves stay in this browser’s Library rather than an account or cloud backup.