Online Audio Cutter — Trim and Cut Audio Files Free

What is the Online Audio Cutter?

The Online Audio Cutter is a free, browser-based tool that lets you trim any audio file down to exactly the portion you want. Load your file, drag the selection handles on the interactive waveform to mark the start and end points, then export the clip — all without installing any software or uploading anything to a server.

It works with MP3, WAV, OGG, and M4A files and runs entirely in your browser using WebAssembly, so there is zero wait time for uploads and zero risk of your audio being stored somewhere you did not intend.

How to Cut Audio

1. Upload your file — click the upload area or drag and drop an audio file.
2. Select the region — drag the left and right handles on the waveform to mark the section you want to keep.
3. Preview — press play to hear exactly what your selection sounds like before committing.
4. Cut and download — click “Cut Audio” to process, then save the trimmed file to your device.

Use Cases

Ringtone creation — shorten any song to a 30-second clip that fits within the standard ringtone length limits for iPhone and Android.

Podcast editing — remove a long intro, outro, or sponsor segment from a recording without needing a full desktop editor.

Sample extraction — pull a specific musical phrase or vocal hook from a longer track for use in another project.

Cleanup for sharing — trim dead air from the beginning or end of a voice memo before sending it to someone.

Why Use This Tool

Most audio cutters require you to upload files to a third-party server, which raises privacy concerns and adds waiting time. This tool processes everything locally using WebAssembly technology, so your audio never touches an external server. There is no account required, no file size limit tied to a paywall, and no watermark on the output.