What audio formats can I cut?

You can cut MP3, WAV, OGG, FLAC, AAC, M4A and most other audio formats that your browser supports. The output is always saved as WAV, which is lossless.

Is my audio file uploaded to a server?

No. All processing is done entirely inside your browser using the Web Audio API. Your file never leaves your device.

Why is the output a WAV file?

The Web Audio API decodes audio into raw PCM data which is re-encoded as WAV — a lossless format. WAV files are universally compatible and require no additional encoding libraries.

← Back to all tools

✂️ Audio Cutter

🎵

Upload Audio File

🎵

Drop audio file here

or tap / click to browse — MP3, WAV, OGG, FLAC, AAC, M4A supported

📖

About This Tool

This tool uses the browser's Web Audio API to decode your audio file, extract the selected time range, and re-encode it as a WAV file — all inside your browser. No files are uploaded. The output is always WAV (lossless PCM) for maximum compatibility.

🎵 MP3 · WAV · OGG · FLAC

👁 Waveform preview

✓ Zero server transmission

❓

Frequently Asked Questions

Is my audio uploaded to a server?

No. All audio cutting is done using FFmpeg.wasm which runs entirely in your browser. Your files never leave your device and are never transmitted to any server.

What formats are supported?

The audio cutter supports MP3, WAV, OGG, FLAC, AAC, M4A, and other common audio formats. FFmpeg.wasm handles a wide range of audio codecs and containers.

Will cutting reduce audio quality?

No. The audio cutter uses stream copy mode to cut without re-encoding, preserving the original audio quality exactly. Your trimmed audio will be identical in quality to the original.