Free Online Audio Cutter – Trim Audio & Extract from Video
AudioCutter is a powerful free online audio trimming tool that lets you cut, trim, and extract segments from audio files — and even extract audio from video files. Whether you need to remove silence from a podcast, extract a song chorus, clip a voice memo, or grab the audio track from a video, AudioCutter delivers precise results using server-side FFmpeg processing.
Key Features
- Cut audio files – Trim MP3, WAV, FLAC, AAC, OGG, OPUS, M4A with frame-accurate precision
- Extract audio from video – Pull audio from MP4, MOV, AVI, MKV, WebM and save as MP3, WAV, FLAC, etc.
- Server-side processing – Uses full FFmpeg engine for fast, reliable cutting
- Interactive timeline – Drag markers or type exact times for precision cuts
- Multiple output formats – MP3, WAV, FLAC, AAC, M4A, OGG, OPUS
- No quality loss – Stream copy for audio extraction, high-quality re-encode for format conversion
How to Cut Audio Online
- Upload your file. Drag and drop an audio file (MP3, WAV, FLAC, etc.) or video file (MP4, MOV, AVI, etc.)
- Select output format. Choose your desired audio format from the dropdown.
- Set the trim points. Drag the green (start) and red (end) markers or type exact times.
- Click "Cut Audio". Your file is uploaded and processed on our server.
- Download your trimmed audio. Get your result in your chosen format.
Frequently Asked Questions
Can I cut audio from a video file?
Yes! Upload any video file (MP4, MOV, AVI, MKV, WebM) and the tool will extract the audio track. You can then trim it and download in your chosen format.
What audio formats can I cut?
Input: MP3, WAV, FLAC, AAC, OGG, OPUS, M4A, plus video formats. Output: MP3, WAV, FLAC, AAC, M4A, OGG, OPUS.
Is this tool free?
Yes, completely free with no limits, no registration, and no watermarks.
Is my file secure?
Yes. Files are processed on our server and immediately deleted after you download the result. We never store your files.