Lossless cuts for MP3, M4A, WAV and more
The cutter copies the audio between your start and end points without re-encoding it. For an MP3 that means the clip is built from the original MP3 frames, each about 26 milliseconds long, so the cut lands within a few hundredths of a second of where you asked and the sound is bit-for-bit what you had. There's no generation loss, no matter how many times you trim the same file.
The output keeps your format: MP3 in, MP3 out; M4A in, M4A out; WAV, FLAC and OGG likewise. If you need a different format afterwards, the Audio Converter turns it into MP3, WAV, M4A, OGG or FLAC.
Marking the cut
The file opens in the player under the button. Play it, pause where the clip should start and tap Set start; then pause at the end and tap Set end. The fields fill in as minutes:seconds with tenths, and you can fine-tune them by typing, for example 0:42.5. Leave End empty to keep everything to the end of the file.
For songs, a good trick is to start just before a beat or a breath, so the clip doesn't open mid-note. For speech, leave a few tenths of a second before the first word so it isn't clipped.
Making a ringtone
Ringtones are the most common reason people cut audio. A few platform specifics:
- Android: any MP3 or M4A works. Copy the clip to the phone (Downloads is fine), then go to Settings → Sound → Phone ringtone, or long-press the file in a file manager, and choose it. Some phones want it in a Ringtones folder.
- iPhone: ringtones must be AAC audio in an .m4r file, up to 40 seconds. Cut an M4A here and rename it from .m4a to .m4r. The easiest way to install it is GarageBand on the iPhone (share the clip to GarageBand, then Share → Ringtone), or Finder or iTunes on a computer.
- Keep it short: 20–30 seconds is plenty, and the best part of the chorus usually works better than the song's opening.
Other things people trim
Beyond ringtones, the cutter is handy for:
- Removing silence or chatter from the start and end of a voice memo or interview.
- Clipping a quote out of a podcast or lecture to share.
- Making alarm, notification and alert sounds.
- Preparing intros, outros and stingers for podcasts and videos.
- Trimming a practice recording down to the part you want feedback on.
Private and quick
Because nothing is re-encoded, cutting takes about a second even for long files. The audio is processed in your browser with ffmpeg, so voice memos, recorded calls and unreleased music never leave your device. There's no account, no watermark and no limit on how many clips you make.
Does the audio cutter add fades?
The cutter doesn't add fades: the clip starts and stops exactly at your marks. If the audio is loud at the cut point you may hear a small click. Starting at a natural pause, between words or on a beat, avoids it. For a proper fade-in or fade-out, open the clip in a free editor such as Audacity afterwards.
Length isn't a problem. Because nothing is re-encoded, trimming a two-hour lecture or podcast takes about as long as a three-minute song, and works on a phone too.