Audio
Trim & Cut Audio
Cut any audio clip to the exact range you need — entirely in your browser. Your audio is never uploaded; it never leaves your device.
This audio trimmer runs FFmpeg directly in your browser using WebAssembly — there is no server, no account, and no upload. Your audio file is read from your disk, cut in a background thread, and the trimmed clip is ready to download immediately. Nothing is ever sent over the network — you can confirm this yourself by watching the Network tab in your browser's developer tools while a trim runs.
Drag the two handles on the waveform to select exactly the section you want to keep, or type precise start and end times. Preview the selection before committing, then choose your output format — MP3, WAV, M4A, AAC, OGG, or FLAC.
How to Use
- 1
Drop an audio file onto the uploader or click to browse.
- 2
Drag the start and end handles on the waveform, or type exact times in seconds, to select the range to keep.
- 3
Optionally hit "Preview" to listen to the selected range before committing.
- 4
Choose your output format and click "Trim Audio". Download the trimmed clip when it's ready.
Frequently Asked Questions
Is my audio uploaded to a server?
No. Trimming runs entirely in your browser using FFmpeg compiled to WebAssembly. Your audio never leaves your device — verifiable in your browser's Network tab during a run.
How do I select the range to keep?
Drag the waveform handles, or type exact start/end times in seconds. Use Preview to listen before trimming.
What if the waveform doesn't show?
The waveform is decoded separately just for the visual — on an unusual codec or very long file it may not render, but numeric start/end fields always work.
What output formats are supported?
MP3, WAV, M4A, AAC, OGG, and FLAC — the same encoding as the Audio Converter.
Is trimming lossless?
Choosing WAV or FLAC preserves full quality. Lossy formats like MP3 or AAC involve a small re-encoding loss, same as any audio re-encode.