Upload an audio file, then choose the part you want to keep. Unwanted sections will be removed.

Click or drag & drop an audio file here

How to Cut Audio Online – Free Lossless Audio Cutter Guide

Learn how to cut audio files online for free. Remove silence, mistakes, or long intros by selecting start/end times with our lossless audio cutter. No quality loss, supports MP3, WAV, AAC, FLAC, OGG, Opus, M4A, and more. Browser-based, no signup needed.

How Does Audio Cutting Work?

Audio cutting, also called trimming, removes a portion from the beginning or end of a file, or extracts a segment from the middle. Our tool uses FFmpeg's 'copy' mode to avoid re‑encoding, so the cut is fast and completely lossless – the original quality is preserved exactly. You only need to set the start and end times (in seconds). The tool then extracts the selected range.

Step‑by‑Step Guide to Cut Audio

Upload your audio file by clicking the upload area or dragging & dropping.
Wait for the audio to load – its duration will be shown automatically.
Enter the start time (in seconds) where you want to begin cutting.
Enter the end time where you want the cut to finish.
Click 'Cut Audio' – the file is processed in your browser. Download the result.

Frequently Asked Questions about Cutting Audio

1. Does cutting audio reduce quality?

No, we use lossless cutting (stream copy). The audio data is not re‑encoded, so quality remains identical to the original.

2. Can I cut multiple parts from one file?

This tool cuts a single continuous segment. For multiple cuts, you can repeat the process or use the 'Split' tool (coming soon).

3. What formats are supported?

Almost all common audio formats: MP3, WAV, AAC, FLAC, OGG, Opus, M4A, AC3, AIFF, AU, and more.

4. Is my audio uploaded to a server?

No. All processing happens in your browser using FFmpeg.wasm. Your files never leave your device – private and secure.

5. Why is the output file larger than expected?

Lossless cutting preserves original codec and bitrate. If the original was high bitrate, the cut will be similar in quality and size. To reduce file size, use the 'Optimize' tool afterwards.

Cut Audio Instantly – Perfect for Podcasters, Musicians & Editors

Cutting audio is essential for removing long silences, mistakes, or unwanted intros. Our free online cutter does it losslessly and without signup. The intuitive interface requires only start/end times, and you can preview the result before downloading. Whether you're a podcaster trimming interviews, a musician removing clicks, or a student editing lecture recordings, this tool makes the task fast and reliable. Try it now – no installation, no ads.