Online Tool Store
Audio Trimmer
Choose an audio file, set precise start and end points, preview the selected segment, and prepare a trimmed WAV directly in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Podcast-intro.mp3
Example audio · 00:42.0
Selection
00:27.0
Example timeline is ready. Choose an audio file to preview and export your own selection.
How to trim an audio file
- Choose an audio file from your device.
- Set the segment start and end positions and optionally add short fades.
- Preview the selection, then export the selected samples as a WAV file.
How the trim is created
The browser decodes the source into audio samples, keeps the frames between the selected timestamps, applies optional volume ramps, and writes those frames into a PCM WAV file. Exporting to WAV avoids adding another lossy compression stage.
FAQ
Which audio files can I trim?
The available formats depend on your browser audio decoder. Current browsers commonly handle WAV, MP3, AAC, and OGG, although support varies by device.
What format is exported?
The selected segment is exported as an uncompressed WAV file, which is broadly compatible with audio editors and media players.
Can I preview before exporting?
Yes. Preview selection starts playback at the chosen start point and stops at the selected end point.
What do fade in and fade out do?
They apply a short volume ramp at the beginning or end of the exported selection to soften abrupt cut boundaries.
Why can an exported WAV be larger than the source?
MP3, AAC, and OGG are compressed formats. WAV stores uncompressed samples, so even a shorter WAV segment can use more space.
How we compare
| Feature | Online Tool Store | Clideo Audio Cutter | 123apps Audio Cutter |
|---|---|---|---|
| Timeline start/end selection | Included | Included | Included |
| Cloud or account workflow | Not required | Available | Service-based |
| Output formats | WAV | Multiple formats | Multiple formats |
Choose Clideo or 123apps when you need cloud sources and multiple export formats. Choose Online Tool Store Audio Trimmer for a focused local selection, preview, fades, and WAV export workflow.