Does cutting an MP3 lose quality?

A little: the clip is decoded and saved as a new MP3 at 256 kbps, a high rate at which the extra loss is very hard to hear. It is not a frame-by-frame copy of the original MP3. To avoid any further loss, save as WAV, which is uncompressed but about six times the size. The browser decodes at the device's own sample rate, so a 44.1 kHz file usually comes out at 48 kHz.

Can I cut out a part from the middle and keep the rest?

Not in one go: the cutter keeps the part between the handles. To remove a middle section, save the part before it and the part after it as two clips, then put them together with the Audio Joiner.

Is there a file size limit?

There is no cap on length. The cutter holds the decoded sound in your device's memory to draw its waveform, so a computer copes with an album-length MP3 or an hour of WAV, while a phone is happier with half an hour or less. Only a file of several gigabytes is likely to be too big to open.

Can I cut the sound of a video?

Save the video's sound as an MP3 first with MP4 to MP3, which can also trim it on the way, then cut it here. To cut the video itself, use the Video Cutter.

Does it work on an iPhone or Android phone?

Yes, in Safari on iPhone and iPad and Chrome on Android. Tap the box and pick the file from Files or Downloads; iPhone voice memos can be shared to Files first. The clip is saved to Downloads, or the Files app on an iPhone.

Is my audio uploaded?

No. The file is decoded, cut and saved in this browser tab on your device; nothing is sent to this site or anywhere else, so private recordings stay private.

Stays on your computer How this works

Free MP3 cutter: cut audio online

Cut the part you want out of an MP3, M4A, WAV, FLAC or OGG file, with fades if you like, and save it as MP3 - in your browser, with nothing uploaded

Drag & drop audio here, or browse

Tap to choose audio

WAV, MP3, OGG, FLAC, M4A · nothing is uploaded

About this MP3 cutter

Keep just the part of a recording you need: the chorus of a song, one answer from an interview, a clip from a podcast, the useful minute of a long voice memo. Open the file, drag the handles on its waveform to the part you want (or type the times), play it to check, and save it as an MP3. It is an audio cutter for other formats too: M4A, WAV, FLAC and OGG files open the same way. It is free to use, with no account and no upload limit, and it runs entirely in your browser: nothing is uploaded, and while the page stays open, a feature you have already used keeps working offline.

The cut is made from a full-quality decode, not from the low-rate copy used to draw the waveform, and the start and end can be set to the millisecond. A fade in or out softens a clip that starts or stops mid-sound.

What you can do

Cut an MP3, M4A, WAV, FLAC or OGG file, an M4R ringtone or an MKA, or any audio your browser can decode
Drag the handles on the waveform, or type exact start and end times
Play the selection before you save it
Fade in and fade out, each any length up to 30 seconds
Mix stereo down to mono for a smaller file of speech
Reduce steady background noise under speech, such as hiss, hum or a fan
Save the clip as MP3 (256 kbps), or as M4A, an M4R iPhone ringtone or WAV
No sign-up, no watermark, no daily limit

How to cut an MP3

Drop the audio file on the box, or click it to choose it. Its waveform is drawn so you can see the quiet gaps and loud parts.
Tap the box and choose the audio file. Its waveform is drawn so you can see the quiet gaps and loud parts.
Drag the shaded handles to the part you want, or type the Start and End times, and press Play selection to check it.
Drag the shaded handles to the part you want, or type the Start and End times if the handles are too small to place exactly, and press Play selection to check it.
Tick Fade in or Fade out if the clip starts or ends abruptly.
MP3 is already chosen under Save as: press Download.

Questions

Does cutting an MP3 lose quality?: A little: the clip is decoded and saved as a new MP3 at 256 kbps, a high rate at which the extra loss is very hard to hear. It is not a frame-by-frame copy of the original MP3. To avoid any further loss, save as WAV, which is uncompressed but about six times the size. The browser decodes at the device's own sample rate, so a 44.1 kHz file usually comes out at 48 kHz.
Can I cut out a part from the middle and keep the rest?: Not in one go: the cutter keeps the part between the handles. To remove a middle section, save the part before it and the part after it as two clips, then put them together with the Audio Joiner.
Is there a file size limit?: There is no cap on length. The cutter holds the decoded sound in your device's memory to draw its waveform, so a computer copes with an album-length MP3 or an hour of WAV, while a phone is happier with half an hour or less. Only a file of several gigabytes is likely to be too big to open.
Can I cut the sound of a video?: Save the video's sound as an MP3 first with MP4 to MP3, which can also trim it on the way, then cut it here. To cut the video itself, use the Video Cutter.
Does it work on an iPhone or Android phone?: Yes, in Safari on iPhone and iPad and Chrome on Android. Tap the box and pick the file from Files or Downloads; iPhone voice memos can be shared to Files first. The clip is saved to Downloads, or the Files app on an iPhone.
Is my audio uploaded?: No. The file is decoded, cut and saved in this browser tab on your device; nothing is sent to this site or anywhere else, so private recordings stay private.

For a ringtone with the first 30 seconds and fades already set and the steps for each phone, use the Ringtone Maker. To put clips together, use the Audio Joiner; to convert M4A songs and voice memos, M4A to MP3. The same cutter, with noise reduction explained, is the Audio Trimmer.