FormatDogWorkspace

100% SECURE PRIVATE SANDBOX

Trim Audio

Cut an audio file down to just the part you need — preview it, set a start and end point in seconds, and download just that clip as MP3. Runs entirely in your browser.

No signup · No file limits · Files never leave your device

How It Works

1

Choose Your Audio

Select the audio file you want to cut down.

2

Preview & Set Start/End

Play it back and enter the exact start and end seconds.

3

Download the Clip

Get just the trimmed section as an MP3.

Frequently Asked Questions

What formats can I trim?

Any common audio format your browser can play back for preview — MP3, WAV, M4A, OGG, and more. The trimmed output is always saved as MP3.

Is my audio uploaded anywhere?

No. The preview and the actual trim both happen entirely inside your browser, on your own device.

What's the audio engine this runs on?

A real, self-hosted build of FFmpeg compiled to WebAssembly — about a 30MB one-time download the first time you use any video/audio tool on this site, then cached by your browser for every tool afterward.

How precise is the trim point?

Down to a tenth of a second — the selected range is re-encoded for an accurate cut rather than snapped to the nearest chunk boundary.

Is this free?

Yes, completely free, with no daily limit.

Never leaves your device

Running Client-Side Sandbox Engine...

Processing calculations securely within local tab memory