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MP3 cutter

Cut an MP3 to the part you want and save it as an MP3 again, copied without re-encoding. It’s free, with no upload, sign-up, or watermark.

Files stay on your device

Drop an MP3 to cut

Drag the ends of the waveform in to keep the part you want. An MP3 stays an MP3, copied without re-encoding unless you add a fade.

MP3, M4A, WAV, FLAC, and other audio, or a video with sound.

How to cut an MP3

Open the MP3 and drag the ends of the waveform in, or type the start and end times, to trim it. To cut a part out of the middle, split it and delete that part. An MP3 is stored in short frames, so the MP3 cutter copies the frames you keep and the sound isn’t encoded again. It works in the browser on your phone or computer, with nothing to download.

  1. Step 1

    Choose the MP3
    Pick it from your phone or computer.
  2. Step 2

    Drag the ends in
    Or type the start and end, and play it to check.
  3. Step 3

    Download the MP3
    The frames you kept, copied without re-encoding.

What to expect

Supported inputs
MP3 files, and any other audio or video file this browser’s engine can read.
What happens
An MP3 is saved as an MP3, copied frame by frame without re-encoding. A fade in or out re-encodes it as MP3. Other audio keeps its own format, and a video’s sound is saved as an MP3.
Limits
An MP3 frame is about 26 milliseconds long, so a cut without a fade lands within that of your mark.

Private by design

Your video stays on your device

Mastershot processes your file locally in this browser. It does not need to be uploaded to a server, and you do not need an account to use the tool.

  • No upload
  • No signup
  • No watermark

Questions

No. The frames you keep are copied as they are, so the cut sounds exactly like the original. Only a fade in or out re-encodes it.

Open this page in your phone’s browser, choose the MP3 from your files, drag the ends in, and download it. There’s no app to install.

Yes. Press Split wherever a part should end, choose Separate files, and download the parts in a ZIP.

Yes, with no sign-up and no watermark, and your MP3 is never uploaded.