✂️ Free Online Audio Trimmer: Cut MP3 & Songs

The ultimate tool for cutting songs and MP3 audios. Select start and end points with surgical precision and 100% local privacy in your browser.

🛡️ 100% Private - Local Processing
🚀 No Uploads - Instant Results
Free & Unlimited
📋 Setup

How to Trim Audio Online in Seconds

Professional audio editing without uploading your files to the cloud.

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1

Upload Audio

Drag or select your audio file.

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2

Select Range

Set start and end points to trim.

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3

Download

Get your trimmed audio file.

Tool Capabilities

Secure and fast multimedia editing

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Precise Cutting

Select exact timestamps for trimming.

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Waveform Preview

Visual representation of your audio.

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Multiple Formats

MP3, WAV, OGG, AAC supported.

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Total Privacy

Local processing in your browser.

Instant Processing

No upload or wait times.

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No Limits

Free, unlimited, no watermarks.

Master Local Audio Editing

Guide on waveform precision, formats, and privacy in web editing.

Waveform Visualization

Our tool generates a visual representation of your audio. This allows you to identify silences, volume peaks, or specific beats to make a perfect cut without having to guess the timing.
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Cut with millisecond precision guided by the real sound signal.

Armored Privacy: WASM in Action

Unlike other online editors, DuneTools does not upload your audio to any server. The trimming happens directly in your browser's memory via WebAssembly, ensuring your voice notes or private files never leave your PC.
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Your audios are yours: 100% private and secure editing.

Questions about the Audio Trimmer

Quick answers about the tool

How to trim an audio file?
Upload your audio file, use the controls to select the start and end points of the fragment you want to keep, and click "Trim".
What audio formats can I trim?
We support MP3, WAV, OGG, AAC, M4A and most common audio formats.
Can I preview the fragment?
Yes, you can play the selected fragment before downloading to make sure it's correct.
Is quality lost when trimming?
The audio maintains original quality. Trimming is precise without re-encoding.
Is it safe to process my audio here?
Yes, everything is processed in your browser. Your files never leave your device.