Audio Trimmer & MP3 Cutter — Waveform Editor
Cut and trim audio files with precision using our free browser-based audio editor. Upload any audio file (MP3, WAV, OGG, FLAC), see the visual waveform, select the exact segment you want to keep, and download the trimmed result. All processing happens in your browser — your audio files are never uploaded to any server.
The waveform is the point: silence, breaths, and the start of a phrase are all visible, so you cut on the gap instead of guessing at a timestamp. Drag the handles for a rough selection, then type exact start and end times to refine it. Common jobs are cutting a ringtone out of a track, dropping the first thirty seconds of room noise from an interview, and pulling the one usable section out of a long recording before sending it on.
How to use Audio Trimmer
- Upload your audio file — Click upload or drag and drop your MP3, WAV, OGG, or FLAC file. The waveform appears automatically.
- Select the segment to keep — Drag the start and end handles on the waveform to select the exact portion you want. Use the play button to preview.
- Add fades and save — Optionally set a fade in and fade out, choose the same format, MP3 or WAV, click Trim Audio Now and download.
Features
- Visual waveform editor — Provides precise selection for cutting audio.
- Supports multiple formats — Works with MP3, WAV, OGG, FLAC, and M4A.
- Exact start/end times — Set times manually or by dragging the visual slider.
- Preview before saving — Listen to the selected segment before finalizing.
- Fade in and fade out — Up to ten seconds each, so a cut never starts or ends with a click.
- Lossless when possible — Without fades or a format change the cut is copied, not re-encoded.
- 100% client-side workflow — Files never leave your device.
Frequently Asked Questions
Can I cut an audio file exactly down to the millisecond?
Yes! Our visual waveform editor and manual time inputs let you trim your audio with millisecond precision, making it perfect for creating ringtones or seamless music loops.
Does this tool support M4A audio formats?
Yes, it supports M4A, MP3, WAV, OGG, and FLAC files. You can export the newly cut segment into standard formats like MP3 and WAV.
Can I cut a section out of the middle instead of keeping one?
Not in a single pass — the trimmer keeps your selection and discards the rest. To remove a middle section, export the part before it and the part after it as two files and join them in an audio editor. For the usual jobs — a ringtone, an interview excerpt, one clean take — keeping a single region is what you want.
Does trimming re-encode the audio?
Exporting to WAV writes the selected samples straight out with no re-compression. Exporting to MP3 encodes once, so a source that was already MP3 takes a second lossy pass, which is only really audible on already low-bitrate files. Choose WAV if the clip is going into an editor afterwards.