Audio Trimmer - Free Online Tool | PivaBox

Trim audio files, add fade effects, and export — all in your browser

How to Trim Audio Files Online

1. Upload an audio file by drag-and-dropping or clicking the upload button — the waveform will be rendered on screen
2. Drag the start and end handles on the waveform to select the portion you want to keep, then adjust fade in/out durations if desired
3. Click Play Selection to preview, then Trim & Download to save the trimmed WAV file with fades applied

Frequently Asked Questions

Is Audio Trimmer free?

Yes, PivaBox Audio Trimmer is completely free to use. All processing happens locally in your browser.

Are my audio files uploaded to a server?

No. All audio processing happens entirely in your browser using the Web Audio API. Your files never leave your device.

What audio formats are supported for input?

The tool supports any audio format your browser can decode — typically MP3, WAV, OGG, AAC, FLAC, and WebM. The output is always WAV (PCM) for maximum compatibility.