Split MP3
Split large MP3 files into tracks or chapters losslessly, with cuts snapped to MP3 frames.
MP3, WAV, M4A, FLAC, OGG, Opus, AIFF, WMA, AMR and the sound of most videos. Files stay on your device.
How it works
- Choose an MP3 file.
- Add markers, or choose equal parts or a fixed length.
- Check the resulting parts and their lengths.
- Download the parts as a ZIP.
Lossless MP3 splitting
An MP3 is a series of frames of about 26 milliseconds. Fast mode, the default on this page, copies the frames of each part exactly as they are: the audio is identical to the original, large files split in seconds and nothing is re-encoded.
Frames cannot be cut in half, so every split point snaps to a frame boundary. After splitting, each part in the list shows where it really starts and ends compared with what you asked for. If you need cuts to the millisecond, or want a different bitrate or format, switch Cut method to Exact.
Choose the points, then download a ZIP
Place markers on the waveform, divide the file into equal parts, or cut every N minutes. This works well for long recordings, audiobooks and radio shows. Parts are named {name}-01, {name}-02 and so on, and you can change the pattern. ID3 tags and cover art are copied to every part by default.
Questions
Will the parts play without a gap when I play them in a row?
Usually yes, but MP3 players differ. Some insert a tiny gap between files because of encoder delay. For gapless results keep the file whole and use chapters or a playlist with gapless playback.
Does it work for other formats?
Yes. Fast mode is also offered for M4A, FLAC, OGG and Opus files, and Exact mode works for every format the site can read.
Is variable bitrate MP3 supported?
Yes, constant and variable bitrate files both work. Fast mode copies the frames as they are.
Is the MP3 uploaded anywhere?
No. It is processed in your browser and never leaves your device.