Video to MP3 Converter
Extract audio from any video file instantly in your browser. No server uploads required.
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Video to Audio Extraction
Video files contain separate audio and video streams. Extracting the audio stream and encoding it as MP3 removes the video data, producing a smaller file that plays in any audio player or music app.
Common Video Formats
- MP4 (H.264) — most universal video format; audio is usually AAC
- WebM (VP8/VP9) — open web format; audio is Opus or Vorbis
- MOV — Apple QuickTime container; audio is usually AAC or PCM
- AVI — older Windows format; audio is usually MP3 or AC3
- MKV — flexible container supporting multiple audio tracks
MP3 Output Quality
- 128 kbps — standard quality, ~1 MB/min, good for speech
- 192 kbps — high quality, suitable for music
- 320 kbps — maximum quality, ~2.5 MB/min
- Quality is limited by the source audio — re-encoding lossy audio degrades quality
Does converting video to MP3 reduce audio quality?
If the source video uses AAC or Opus audio and you transcode to MP3, there is generational quality loss (lossy-to-lossy conversion). To avoid this, export at the highest feasible bitrate. If the source audio is already MP3, try to extract without re-encoding. The perceptible quality difference at 192 kbps+ is minimal for most listeners.
Is it legal to extract audio from a video?
Extracting audio from videos you own or created is always legal. Extracting audio from copyrighted content (music videos, movies) without authorization may infringe copyright. YouTube's Terms of Service prohibit downloading content. Converting personal videos — screen recordings, home videos, purchased content — is legal in most jurisdictions.
How does browser-based video conversion work?
This tool uses the Web Audio API and MediaRecorder or ffmpeg.wasm to process video entirely in your browser. Your video is never uploaded to a server — all processing happens locally on your device. This keeps your files private and works without an internet connection once the page is loaded.