Audio speed tool
Audio Speed Changer Online
Change audio speed online. Upload a song, slow it down or speed it up, preview pitch changes, and export from your browser.
How it works
Make a audio speed change in three steps.
Add your audio
Upload a song or audio file from your device into the browser-based editor.
Change speed
Move the speed control below 1.0x to slow down or above 1.0x to speed up.
Preview and export
Listen to the result, combine effects if needed, and export the finished file.
Recommended setup
Start with these settings, then adjust by ear.
Every song reacts differently. Use these as starting points and preview changes in real time before exporting.
0.75x to 0.9x
Use this range for slowed songs, deeper vocals, and relaxed remix edits.
1.0x
Keep original speed if you only want to apply reverb, bass boost, or trim.
1.1x to 1.35x
Use this range for faster edits, nightcore-style remixes, and energetic clips.
Combine with effects
Add reverb, bass boost, or crop after choosing the speed that fits the track.
Private by design
Your audio stays in your browser.
Speed changes are previewed and exported locally in your browser. Remix Songs does not upload your audio to process it.
Frequently asked questions
Answers about this remix style, exports, and browser processing.
Can I change audio speed online?
Yes. Upload an audio file, adjust the speed slider, preview the result, and export from your browser.
Does changing speed also change pitch?
Yes. Remix Songs changes speed and pitch together, which is useful for slowed and nightcore edits.
Can I slow down a song?
Yes. Move speed below 1.0x to slow the song down and create a deeper remix.
Can I speed up a song?
Yes. Move speed above 1.0x to make faster edits or nightcore-style remixes.
Try more remix tools
Explore related browser-based audio effects.