Can I merge files with different formats and sample rates?

Yes. Inputs are normalised to a common format before being joined in order, so a mix of MP3, WAV and M4A works fine. You choose the output format.

How is the order decided?

Files are joined in the order shown in the list. You can move them up or down after uploading and start merging once the order looks right.

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

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

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Join multiple audio files in order into one. Inputs can have different formats and sample rates; output is MP3, WAV or M4A.

Free · No sign-up · Runs in your browserLast updated: 2026-10-29

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Can I merge files with different formats and sample rates?: Yes. Inputs are normalised to a common format before being joined in order, so a mix of MP3, WAV and M4A works fine. You choose the output format.
How is the order decided?: Files are joined in the order shown in the list. You can move them up or down after uploading and start merging once the order looks right.
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.