MP3 Splitter

Split an MP3 file into as many tracks as you need. Drop the file, place your split points on the waveform, and export every part in one pass - everything runs locally in your browser.

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How to split an MP3

  1. 01

    Open your MP3

    The file is read locally in your browser and never uploaded.

  2. 02

    Add your split points

    Place a start and an end marker wherever a track should begin and end. Every pair becomes one clip.

  3. 03

    Export all the parts

    Download every clip in one pass, or pick only the ones you need.

Split an MP3 online - no install, no signup

Searching for an mp3 splitter online usually means you do not want another program on your machine. Nothing is installed here: the splitter opens with the page, reads your file locally and hands the results back as downloads. Split mp3 and split audio file are the same job as mp3 splitter, so they share this page instead of competing as three thin ones.

Split MP3 at the silence, not the clock

For a continuous recording - a DJ set, a live mix, a long voice memo - the natural cut points are the quiet passages between tracks. Play or scrub to each one, drop a start/end marker pair there, and export. There is no automatic silence scan: every boundary is a place you chose, so nothing is cut in the wrong spot.

Split MP3 by markers

Place a start and an end marker wherever a clip should begin and end. Every marker pair becomes one file, so ten pages means ten MP3s from a single export. Working from known timestamps - a cue sheet, a chapter list or a spreadsheet - read each one off the list, seek to that point on the waveform and drop the marker there.

Split long recordings: DJ sets, mixes, voice memos

MP3 is cut on frame boundaries, so the file is copied rather than decoded. A two-hour mix splits as quickly as a three-minute song, and every exported clip keeps the original bitrate, the original quality and the original ID3 tags.

MP3 splitter vs MP3 cutter vs MP3 trimmer

A splitter turns one file into many tracks. A cutter removes a section from the middle. A trimmer keeps one part and discards the rest. All three run on the same engine here, so pick the page that matches the job - or stay on this one and use extra marker pairs to do all three in a single pass.

Supported formats

MP3 / AAC
Cut on frame boundaries - no re-encode
WAV
Cut by byte range - no re-encode
M4A / M4B
Cut on sample boundaries - no re-encode
FLAC / OGG
Decoded first; roughly 2 hours max in a browser tab

Questions

Is this MP3 splitter free?
Yes. Splitting, unlimited clips and unlimited exports in the original format are free - no account, no watermark, no ads. Pro is a one-time $19.90 purchase that adds batch ZIP export, CUE / chapters export and re-encoding to MP3, AAC or Opus.
Do I need to upload my MP3?
No. The file is read with the Web Audio API inside your browser tab, so the audio never leaves your device and never reaches a server.
How do I split an MP3 into equal parts?
There is no automatic equal-parts mode: place your markers at the intervals you want and export. For content that should simply be divided into equal chunks, a tool with a divide-into-N feature will get you there faster - this one is built for cuts that follow the content.
Can I split a long file, like a two-hour recording?
Yes. MP3, WAV, M4A and AAC are never decoded as a whole, so length is not the limit. FLAC and OGG must be decoded first and cap out at roughly two hours inside a browser tab.
Will the split files lose quality?
No. The audio frames are copied unchanged, so each clip is bit-for-bit the same audio as the source, with the same bitrate and the same tags.
Can I split an MP3 by chapters?
Yes - use the chapter split page, which is set up for one file per chapter. You place the boundaries on the waveform yourself; every start/end pair becomes one chapter file, and all of them export in one pass.
Does it work on mobile?
Yes, the tool runs in any modern mobile browser. For precise marker placement on a long file, a larger screen is easier.

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