Audio / Video

Audio Trimmer

Load an audio file, choose a start and end time, and download just that section — cut entirely in your browser.

Audio

Trim an audio file

Local only

Choose an audio file

Everything stays in your browser — with one honest limitation

Your audio is decoded and cut on your device and never uploaded. Because browsers cannot re-encode MP3 or AAC without a heavy extra library, the trimmed clip is saved as lossless WAV, which is larger than the original file.

Getting a clean cut

Play the file first and note the timings you want, then fine-tune the sliders in tenths of a second. Cutting on a quiet moment rather than mid-word avoids the click you sometimes hear at an abrupt edit point.

Good to know

Frequently asked questions

Why is the result a WAV file?

Browsers can decode many audio formats but cannot re-encode MP3 or AAC without a large extra library. The trimmed audio is written as lossless WAV instead, which every player supports. WAV files are bigger than the original MP3.

Which input formats work?

Whatever your browser can decode — usually MP3, WAV, M4A/AAC, OGG and FLAC. If a file cannot be decoded you will see a clear message rather than a broken result.

Is the audio uploaded?

No. The file is decoded and cut with the Web Audio API on your device. Nothing is sent to a server.

Is there a size limit?

Decoding holds the whole file in memory, so very long recordings (roughly over an hour) may fail on low-memory devices. Trim in shorter passes if that happens.

Trim an audio file

Getting a clean cut

Frequently asked questions

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