Audio Loop
Choose a clip, pick how many times to repeat it and an optional crossfade for a seamless loop, then download the result as MP3 or WAV.
- Runs in your browser
- Free to use
About this tool
Audio Loop repeats a clip as many times as you need with a crossfade between repeats, entirely in your browser: background music for a video, an ambience bed, a drum loop stretched to a full minute. The output is MP3 or lossless WAV with a player for checking the seam.
Related: Audio Joiner, Change Audio Speed.
How to use it — quick steps
- 01
Add the audio file
Drop a WAV, MP3 or M4A file on the dashed area or choose it; a new file replaces the previous one.
- 02
Choose repeats and crossfade
Pick how many times to repeat and a crossfade of 50 ms to 1 s to smooth the seam between repeats.
- 03
Press "Loop audio"
The repeats are rendered in your browser with equal-power crossfades; play and download the result.
Key features of this tool
Seamless repeats
Crossfades overlap the end of one repeat with the start of the next, hiding clicks and gaps.
MP3 or WAV output
MP3 at 128-320 kbps (encoded with LAME in the browser) or lossless WAV.
Processed on your device
Decoding, processing and encoding run in your browser with the Web Audio API; audio files are never uploaded.
Frequently asked questions
Which crossfade should I use?
50-150 ms for rhythmic loops where timing matters, 500 ms to 1 s for ambient sounds and background music.
How long can the result be?
Up to 50 repeats; keep the total within a few minutes so it fits comfortably in browser memory.
Are my files or data uploaded?
No. The tool is plain JavaScript that runs in your browser; the files or data you provide here are never uploaded to our servers.