Change music tempo without changing pitch. Slow down or speed up songs, speech, and recordings, preview the result, and export it directly in your browser.
Drop a song, lesson, podcast, or practice track here to slow it down or speed it up, or or import from:
Set the playback speed by percentage while keeping voices and instruments in their original key.
A tempo changer makes audio play faster or slower while keeping the original musical key. It is useful when you need more time to hear a difficult passage, want to rehearse at a different pace, or need to shorten spoken audio without making voices sound unnaturally high.
Use the percentage control to change music speed from 50% to 200%, listen to an instant preview, and save the complete result in the audio format you need.
Choose half speed, a comfortable practice tempo, the original speed, or a faster pace.
Songs stay in the same key and speech keeps a natural tone while the duration changes.
Hear a short tempo-adjusted preview before processing the complete file.
Save the result as WAV, MP3, M4A, FLAC, or OGG directly from the browser.
Slow down or speed up audio in three steps without changing its pitch.
Choose a song, lesson, podcast, dance track, backing track, or language recording from your device.
Select a preset or move the speed control anywhere from 50% to 200%, then listen to the instant preview.
Select WAV, MP3, M4A, FLAC, or OGG, process the complete track, and download the result.
Changing tempo is useful whenever timing matters but the original pitch should stay unchanged.
Slow down solos, drum fills, vocal runs, and fast passages while practicing in the original key.
Start choreography at a comfortable speed and increase the tempo as the routine becomes familiar.
Speed up podcasts, lectures, interviews, and voice notes when you need to save listening time.
Slow down natural speech without lowering the speaker's voice or changing pronunciation cues.
These controls describe related but different changes to an audio file.
| Control | What it changes | Pitch | Best for |
|---|---|---|---|
| Tempo percentage | Playback pace and duration | Preserved | Practice, speech, dance, and general speed changes |
| Target BPM | Tempo to an exact beats-per-minute value | Preserved | Backing tracks, rehearsal, DJ preparation, and production |
| Pitch | Musical key or voice height | Changed | Transposition, vocal range, and creative effects |
Upload an audio file, choose a speed between 50% and 200%, preview the change, and export it. The tempo changes while the original musical key is preserved.
Yes. The tempo changer preserves pitch, so instruments and voices stay in the same key when the song is slowed down.
Yes. Increasing tempo does not raise the pitch, so voices remain more natural than with a simple playback-rate change.
You can change audio from 50% to 200% of its original speed. A 50% setting is half speed, while 200% is double speed.
Use the BPM Changer when you know the current tempo and need an exact target BPM. It uses the same pitch-preserving workflow with BPM-specific controls.
The tempo-adjusted result can be exported as WAV, MP3, M4A, FLAC, or OGG.
Yes. Slower settings make the result longer, while faster settings shorten it. The updated duration is shown before export.
No. The built-in tempo workflow reads and processes the selected audio in your browser.
Preview 18 presets, fine-tune each frequency band, and export in five audio formats.
Choose six distinct reverb characters, adjust the complete tail, and export WAV, MP3, M4A, FLAC, or OGG.
Boost low frequencies with a ready-made +8dB preset or precise custom control.
Speed and pitch up audio for a classic nightcore sound.
Preview semitone changes instantly, keep speed independent, and export WAV, MP3, M4A, FLAC, or OGG.
Adjust tempo from 50% to 200%, preview the result, and export in five audio formats.
Compare original and reversed audio, adjust speed or pitch when needed, and export in five audio formats.
Move audio around the stereo field with a circular pan effect.
Control direction, elevation, distance, motion, spatial mix, and room response in your browser.
Shape stereo width, rotation, elevation, distance, motion, room response, and spatial mix.
