About Trim audio
Trim audio online to keep a spoken passage, a recording excerpt, or a short sound. You can cut MP3 audio and export WAV when the browser can decode the source. The output is uncompressed PCM WAV, not a new MP3 file, and may be larger than the original.
How to cut an audio file by time
- Select a supported audio file.
- Enter the start and end times in seconds and select Process.
- Listen to the preview when supported and download the WAV clip.
A practical example
- Input
A 30-second supported audio file; Start: 5; End: 12.
- Result
A WAV export covering the selected 7-second interval.
WAV stores uncompressed audio here. A shorter WAV can still be larger than a longer compressed MP3.
Supported input and limitations
- The only output is PCM WAV. MP3, AAC, ringtone presets, fades, and audio joining are not provided.
- One file up to 512 MB is accepted. The source must contain a readable audio track and the selected range must fit its duration.
Processing happens on your device. Read about local processing and optional workspace recovery.
Frequently asked questions
Can I save the trimmed audio as MP3?
Not in this version. The tool exports uncompressed PCM WAV regardless of the supported source format.
Why is the trimmed audio larger than the original?
The output is uncompressed, while sources such as MP3 or AAC are compressed. Compare duration and encoding, not just byte size.