Loop Audio
Loop Audio repeats a clip several times back-to-back into one longer file — handy for extending a short jingle, making a longer ambience bed, or building a practice track. The clip is repeated exactly, and the result is a single downloadable file. Everything runs in your browser.
Add your audio file
The file is read by your browser and stays on your device — there is no upload step.
Your audio
The work runs in this tab. Nothing is sent anywhere, and the download is generated locally.
Output —Load audio
How to use Loop Audio
- 01Upload
Add your audio
Drop your clip in and play it to check it's the loop you want.
- 02Customize
Set the count
Choose how many times it should play, from 2 up to 10.
- 03Process
Download
Export to render the repeated audio as one file.
What looping does
Repeats the audio a set number of times into a single longer file. Common for background beds, hold music and ambience that needs to run for a fixed duration.
What does not change
Sample rate, channels and level. As with video, the seam is everything: a loop point in the middle of a sustained note or a room reverb tail will click audibly. Cutting at a zero crossing on a musical bar line is what makes a loop seamless.
Supported formats
- MP3
- WAV
- M4A
- OGG
- FLAC
- Maximum file size —
- bounded by your device's memory
- Processed by —
- FFmpeg (WebAssembly), on your device
Your file, and what the page does
Your file is never uploaded. Loop Audio reads it into this browser tab and processes it with FFmpeg compiled to WebAssembly on your own device. There is no upload endpoint in the application and no copy on any server — closing the tab discards it.
That is also why processing takes longer here than on a site that uploads: your device is doing the work rather than a rack of servers. The trade is that the file never leaves it.
What the page does send or fetch
- The processing engine, once
- The first time you use any video or audio tool, the browser downloads the FFmpeg WebAssembly build (~30MB) from the jsDelivr CDN and reuses the cached copy afterwards. That is a file coming to you — no part of your own file is in the request.
- Ads on the page
- The site is funded by advertising, so the page loads Google AdSense. That carries the usual web basics — IP address, browser, referring page — as on any ad-supported site.
- An anonymous usage counter
- When Loop Audio finishes we record that the tool ran, whether it succeeded and how long it took. No file data, no identifier, no cookie.
Your file is not on that list. How this works.
Frequently asked questions
The copies join exactly end-to-end; whether it sounds seamless depends on how cleanly the clip's end flows into its start.
From 2 to 10 plays in one pass. For longer, loop the result again.
The audio is re-encoded once; choose WAV output if you want a lossless loop.
Yes — Loop Audio is completely free. There's no account, sign-up, watermark or limit.
No. It runs in any modern browser — Chrome, Edge, Safari, Firefox, Brave — with nothing to download or install.
Looking for something else?
- There is a click at the joinTrim Audio
- The ends should fade insteadFade In / Out
- The levels jump between repeatsNormalize Audio
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