Before you start
GrabFlow processes the selected file locally with FFmpeg WebAssembly. The media file is not uploaded to GrabFlow. Use media you own or are permitted to process.
- Supported inputs depend on the codecs included in the local engine.
- The current tool extracts the first audio track.
- The output is MP3 at the bit rate you select.
Extract the audio
- Open Extract Audio and choose a local video.
- Select 128, 192, 256 or 320 kbps.
- Start processing and keep the page open.
- Download the MP3 after processing finishes.
If extraction fails
A file without an audio track cannot produce an MP3. Encrypted media, damaged files and unsupported codecs also fail. Try playing the source locally or converting it to a common format first.