Audio Trimmer — Free Online Tool
Trim MP3, WAV, OGG, AAC, or M4A audio files to a specific start and end time. Output as MP3, WAV, or OGG. Uses FFmpeg.wasm — ~25 MB WASM on first use, then cached.
100% client-side. No uploads. Your data never leaves your browser.
How to use Audio Trimmer
- Drop an audio file
- Set start and end times
- Choose output format
- Click Trim Audio
- Download the trimmed clip
Frequently Asked Questions
Does re-encoding change audio quality?
MP3 output uses libmp3lame at quality 2 (high quality, ~190 kbps VBR). WAV output uses stream copy with no quality change.
What audio formats are supported?
Input: MP3, WAV, OGG, M4A, AAC, FLAC. Output: MP3, WAV, OGG.
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