Toolbrix
audio-video
🔒 Processed locally — Web Audio API AudioBuffer slicing.

In-Browser Audio Trimmer & Cutter

Cut a part of an MP3, WAV, M4A, OGG or FLAC file: set start and end on the waveform, preview, add fade in and out, and download a WAV. Nothing is uploaded.

Drop a file here or click to choose

MP3, WAV, M4A, OGG or FLAC. Decoded and cut in your browser.

What is a In-Browser Audio Trimmer & Cutter?

This audio cutter decodes your file in the browser with the Web Audio API, shows the waveform, and saves the part you select. Use it to make ringtones, cut a quote from an interview, or remove silence at the start of a recording. The result is a lossless 16-bit WAV file.

Execution Privacy:Toolbrix processes this utility using🔒 Processed locally — Web Audio API AudioBuffer slicing.

How to use this In-Browser Audio Trimmer & Cutter

1

Drop an audio file. The waveform appears.

2

Click the waveform or type times to set the start and end.

3

Preview the selection and add a fade if you want a smooth start and end.

4

Click Cut audio and download the WAV.

Frequently Asked Questions

Q:Why is the output WAV and not MP3?

Browsers cannot encode MP3 natively. WAV keeps full quality and plays everywhere. Convert it to MP3 afterwards if you need a smaller file.

Q:Can I trim a video's audio?

Often yes: many browsers can decode the audio track from MP4 files. If it fails, use the video trimmer.

Q:Is my recording uploaded?

No. Decoding and cutting happen on your device.

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