Does the cutter upload my file?

No. The entire cut runs client-side using the Web Audio API and OfflineAudioContext. Your audio never leaves the browser.

Which formats are supported?

MP3 and WAV input work everywhere. Other formats depend on your browser — if decoding fails, try the server-side trimmer at /audio-trim instead.

Yes, 100 MB per file. Larger files should be compressed first via the format converter or use the server-side trimmer.

WAV export is lossless. MP3 export re-encodes at 128 kbps, which is a good balance of size and quality for most material.

Audio CutterLocal

Trim MP3 and WAV files by selecting a start and end point on the waveform.

Drop an MP3 or WAV file here

or click to browse

⎆Your audio never leaves your browser. All cutting and encoding happens locally.

How to use Audio Cutter

Drop your audio file
Drag an MP3 or WAV file onto the dropzone, or click to browse. The waveform appears once decoding finishes.
Select a range
Drag the start and end handles on the waveform to choose the slice you want to keep.
Preview the selection
Press play on the built-in player to hear only the selected range before exporting.
Pick an output format
Choose MP3 for a smaller file or WAV for lossless quality.
Export and download
Click export — the cut runs entirely in your browser and the file saves to your device.

Frequently asked questions

Does the cutter upload my file?: No. The entire cut runs client-side using the Web Audio API and OfflineAudioContext. Your audio never leaves the browser.
Which formats are supported?: MP3 and WAV input work everywhere. Other formats depend on your browser — if decoding fails, try the server-side trimmer at /audio-trim instead.
Is there a file size limit?: Yes, 100 MB per file. Larger files should be compressed first via the format converter or use the server-side trimmer.
Will the export lose quality?: WAV export is lossless. MP3 export re-encodes at 128 kbps, which is a good balance of size and quality for most material.