Video to MP3 Converter - Extract Audio from Video Free
Last Updated: April 1, 2026
Last updated: 2026-03-14
You have a music video, a podcast recording in video format, or a lecture video. You only need the audio. Converting video to MP3 strips the video track and keeps just the sound, reducing file size by 90% or more.
File Size Comparison
| Format | 1 Hour Duration | Quality |
|---|---|---|
| MP4 video (1080p) | ~1.5 GB | Full video + audio |
| MP4 video (720p) | ~700 MB | Full video + audio |
| MP3 audio (320 kbps) | ~144 MB | High quality audio only |
| MP3 audio (128 kbps) | ~58 MB | Standard quality audio only |
Which Bitrate to Choose
- 320 kbps. Highest MP3 quality. Use for music you care about.
- 256 kbps. Very good quality. Most people cannot tell the difference from 320.
- 192 kbps. Good quality. Fine for podcasts and speech.
- 128 kbps. Standard quality. Acceptable for speech, noticeable compression on music.
Supported Input Formats
MP4, AVI, MOV, MKV, WebM, FLV, WMV, 3GP, and more. If it is a video file, we can extract the audio.
Extract audio from any video - free, instant, high quality.
Open Video to MP3 Converter →Related Tools
According to MDN Web Docs, the MediaRecorder API enables browser-based audio extraction.
As Xiph.org documents, modern audio codecs offer better quality-to-size ratios than MP3, but MP3 remains the most universally compatible format.
Frequently Asked Questions
Is this video tool free?
Yes, all video tools on AI-MP4.com are free to use without any subscription.
What video formats are supported?
We support MP4, MOV, AVI, MKV, WebM, and most common video formats.
How long can my video be?
We support videos up to 2GB or 2 hours in length.
Is my video stored on your servers?
No, videos are processed and immediately deleted. Your privacy is guaranteed.
Does processing happen in the cloud?
Yes, processing is done server-side for fast results on any device.
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Any device, any browser. No installation needed.
How It Works
Upload
Drop your file or paste content into the input area
Process
Click the button and let AI do the heavy lifting
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Get your result instantly, ready to use
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