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Split MP3 into Equal Parts

Choose how many parts you need and split your file evenly.

Drop your MP3 here

Up to 100 MB. Your audio stays on your device.

Divide this MP3 into 4 equal parts

How to split an MP3 file

  1. Choose your MP3. It opens in your browser and is not uploaded.
  2. Enter how many parts you want, from 2 to 20. The length of each part is shown.
  3. Check the list of parts, then download them one by one or as a ZIP.

How equal parts are calculated

SplitMP3 divides the total length by the number of parts and places each cut at a multiple of that length. The last part always ends at the true end of the file, so rounding never drops the tail.

Example: a 12-minute MP3 split into 3 parts gives three parts of 4:00 each, starting at 0:00, 4:00 and 8:00. Because MP3 audio is stored in short frames of about 26 milliseconds, each cut is moved to the nearest frame, so parts can differ by a few milliseconds.

If the number of parts would make any part shorter than one second, you will be asked to choose fewer parts. For parts of a specific length instead, use split MP3 by duration.

Good to know

  • Cuts snap to the nearest MP3 frame, about 26 milliseconds. Parts are copied, not re-encoded.
  • The first fraction of a second after a cut can start with a few milliseconds of silence.
  • Tags and cover art are not copied into the parts.
  • Files up to 100 MB on desktop and 50 MB on phones. Only MP3 files are supported.

Frequently asked questions

How many equal parts can I make?

From 2 to 20 equal parts. Each part must be at least one second long.

Will all parts be exactly the same length?

Nearly. Cuts snap to MP3 frames of about 26 milliseconds, so lengths can differ by a few milliseconds. The last part always reaches the end of the file.

Are my MP3 files uploaded to a server?

No. SplitMP3 processes your audio in your browser. Your audio file is not uploaded to our servers.

Does splitting reduce audio quality?

SplitMP3 copies the existing MP3 data into new files without re-encoding it, so the sound itself is not recompressed. Cuts snap to the nearest MP3 frame, about 26 milliseconds, and the first fraction of a second after a cut can start with a few milliseconds of silence. Results can vary by source file.

Is there a file size limit?

Files up to 100 MB are supported on desktop browsers and up to 50 MB on phones and tablets. The exact limit that applies to your device is shown if a file is too large.