Video to MP3 Converter
Extract MP3 audio from any video file. Convert MP4, MOV, AVI, MKV to MP3. Choose bitrate for quality. Free online video to audio converter.
Free video to MP3 converter. Extract audio from MP4, MOV, AVI, MKV, WebM videos. Choose bitrate quality. 100% browser-based extraction.
- ✓ Extract audio from MP4, MOV, AVI, MKV, WebM videos
- ✓ Selectable bitrate for MP3 quality control
- ✓ Shows original video duration and converted audio size
- ✓ Supports files up to 500MB
- ✓ 100% client-side - videos never uploaded
How to Convert Video to MP3
- 1 Click the upload area or drag your video file to upload
- 2 Wait for the video to load and display its information
- 3 Select your preferred bitrate for MP3 audio quality
- 4 Click 'Extract MP3' to convert the video audio track
- 5 Download your MP3 file when the extraction is complete
Frequently Asked Questions
How does browser-based video processing work? ▼
MagicKit uses FFmpeg compiled to WebAssembly (WASM). This brings professional video editing capabilities directly to your browser.
What video formats are supported? ▼
MP4, WebM, MOV, and AVI. Some tools also support MKV and other formats.
Is there a file size limit for videos? ▼
We recommend files under 500MB for optimal browser performance. Larger files will work but may be slower.
Why does video processing take time? ▼
Video encoding is computationally intensive. Processing happens on your device, so speed depends on your computer's capabilities.
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Last updated: January 15, 2026 · v2.1