Video & Audio
Trim Audio
Keep just the part of a sound file you want, with no quality lost. No upload, no signup.
Files stay on your device How it works
Drop a file here, paste, or
MP3, M4A, AAC, WAV, OGG, FLAC or WebM · one file, up to 25 MB
Your files
Your file is ready
How to trim an audio file
- Choose a sound file, MP3, M4A, AAC, WAV, OGG, FLAC or WebM, up to 25 MB and 30 minutes long. Its waveform appears under it, with two sliders.
- Drag the sliders, click the waveform, or type the start and end as seconds (65.5) or minutes and seconds (1:05.5). Press Play the selection to hear the part you’ve chosen.
- Press Trim audio and download the clip.
Choosing the part
- The waveform: loud passages are tall, silence is flat, and the part you keep is highlighted. That makes pauses between sentences or songs easy to find.
- A click on the waveform moves whichever end of the selection is nearer to where you click.
- Play the selection plays just that part; press Stop to end it early.
- Typing: the sliders move in tenths of a second, and a typed time can be finer, such as 1:05.25. The line under the sliders shows the length you’ve chosen.
When it helps
Cut the long pause before a recording starts, keep the one answer you need from a recorded talk, or bring a voice memo down to the part that matters. A shorter file is also quicker to send and easier to listen back to.
Nothing is re-encoded
The sound is copied as it is, so nothing is lost and the clip keeps the original’s format: MP3, M4A, AAC, WAV, OGG and FLAC files all stay as they were. Compressed sound is stored in short frames, and a cut lands on the nearest frame, a few hundredths of a second from the time you set. An MP3 frame holds 1,152 samples, about 26 milliseconds at 44.1 kHz; FLAC frames are usually longer, about a tenth of a second.
Which browsers work
Trimming works in current Chrome, Edge, Firefox and Safari, because nothing is converted. The waveform and the play button use your browser’s own sound decoder; if it can’t read a file, there’s no waveform, and trimming still works.
Good to know
Your file stays on your device; nothing is uploaded. The clip’s name gets “-trimmed”: podcast-episode.mp3 becomes podcast-episode-trimmed.mp3. A WebM file keeps only its sound. To change the format as well, trim first, then use the Audio Converter. To cut a video, use Trim Video; to take the sound out of one, use MP4 to M4A.