What is the difference between fast mode and re-encoding?

Fast mode copies the audio data directly: instant and lossless, but cut points may be off by a fraction of a second. Re-encoding can also change format and cuts exactly where you asked, but takes longer.

Can it split on silence automatically?

Not yet — type the time points in instead. Listen through once, note the boundaries, then split them all in one pass.

Are my files uploaded to a server?

No. Everything runs locally in your browser via WebAssembly. Files never leave your computer and are discarded when you close the page.

Do I need to sign up or pay?

No. The site is completely free, requires no account, has no usage limits and adds no watermarks.

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🔪Split Audio Online - Cut a Long Recording into Parts

Cut one long file into individual tracks. Split it into equal parts, into fixed-length chunks, or at time points you type in. Fast mode does not re-encode, so an hour-long recording splits in seconds, and the parts come back as a single zip.

Free · No sign-up · Runs in your browserLast updated: 2026-10-26

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How to use Split Audio

1Upload an audio file — the total length is shown
2Choose equal parts, a fixed length, or your own split points
3Click start and download the zip of parts

FAQ

What is the difference between fast mode and re-encoding?: Fast mode copies the audio data directly: instant and lossless, but cut points may be off by a fraction of a second. Re-encoding can also change format and cuts exactly where you asked, but takes longer.
Can it split on silence automatically?: Not yet — type the time points in instead. Listen through once, note the boundaries, then split them all in one pass.
Are my files uploaded to a server?: No. Everything runs locally in your browser via WebAssembly. Files never leave your computer and are discarded when you close the page.
Do I need to sign up or pay?: No. The site is completely free, requires no account, has no usage limits and adds no watermarks.