About this tool
About Audio Trimmer
Trim an audio file to the exact time range you need and apply smooth fade-in and fade-out effects from 0 to 10 seconds. The selected portion is encoded as an MP3 locally in your browser for preview and download.
What Audio Trimmer is for
Use this tool to audio trimmer directly in your browser with no account required. It is designed for a focused task rather than a multi-step editor, so the input, options and result stay on one page.
How to use the tool
- Add a supported audio file.
- Set the start and end time for the section to keep.
- Adjust the fade-in and fade-out sliders, or enter exact durations.
- Trim the file, preview the result and download the MP3.
Privacy and practical limits
Supported processing runs locally in the browser. Large inputs can still be limited by the memory available on the device, and results should be checked before they are used in production.
Result checklist
- Confirm that the full input was processed.
- Review punctuation, whitespace, encoding or media quality as applicable.
- Keep the original until the output has been accepted by its destination.