BPM Changer
Change song tempo and speed without affecting pitch - Perfect for DJs, dance practice, and music production
Upload Your Audio
Upload any song and adjust its tempo/speed. The pitch will remain unchanged.
Click to upload audio file
Supports: MP3, WAV, OGG, FLAC (max 100MB)
Preview & Download
Once processed, preview your tempo-adjusted track and download.
Upload a file to get started
How BPM Changing Works
Change your song's speed without affecting its pitch using advanced time-stretching algorithms.
Upload Audio
Upload your song. Our AI automatically detects the current BPM for accurate adjustments.
Adjust Tempo
Set your target BPM or speed percentage. Real-time preview shows the changes.
Download
Get your tempo-adjusted track with perfect pitch preservation and audio quality.
Perfect For
DJ Sets & Mixing
Match BPMs across tracks for seamless mixing and transitions. Create perfect mashups by syncing different songs.
Dance Practice
Slow down songs to learn choreography step by step, then gradually increase to full speed.
Music Production
Adjust sample BPMs to match your project tempo. Perfect for beat making and remixing.
Live Performance
Adapt songs to your preferred tempo for covers and performances without changing the key.
Frequently Asked Questions
What is BPM and tempo?
BPM (Beats Per Minute) is a measure of tempo - how fast or slow a song plays. Changing BPM speeds up or slows down the music while our tool preserves the original pitch, so vocals don't sound chipmunk-like or unnaturally deep.
Will changing tempo affect pitch?
No! Our advanced time-stretching algorithm changes the speed without affecting pitch. Vocals and instruments maintain their original key even when significantly sped up or slowed down.
How much can I change the BPM?
You can adjust BPM from 50% to 200% of the original speed (or 40-240 BPM range). Moderate changes (80-125%) typically sound most natural, but extreme changes are possible for creative effects.
How does automatic BPM detection work?
Our AI analyzes the audio to detect the rhythmic pattern and calculate the BPM. This gives you an accurate starting point for your adjustments. You can also manually set the BPM if you know it.
Will audio quality be affected?
We use professional-grade time-stretching algorithms that maintain high audio quality. Minor artifacts may appear with extreme tempo changes, but moderate adjustments (±20%) typically sound excellent.
Can I use this for DJ mixing?
Absolutely! DJs frequently use BPM changers to match track speeds for seamless mixing and transitions. Our tool is perfect for preparing tracks before a set or creating mashups.