Free Online Video to MP3 Converter - Extract Audio from Any Video
Extract audio from MP4, MOV, MKV, WEBM, and more to MP3, M4A, WAV, OGG, or FLAC. Runs entirely in your browser with packet-copy lossless output when possible - no uploads, no installs.
Drag & drop a video here, or click to upload
Supports MP4, MOV, MKV, WEBM, M4V, and common audio files up to 2 GB
How to Extract Audio from a Video
- 1.Drop a video file onto the upload area or click to browse. MP4, MOV, MKV, WEBM, and M4V are supported up to 2 GB.
- 2.Pick an output format — MP3 for universal compatibility, M4A to keep AAC quality, WAV or FLAC for fully lossless output.
- 3.Optionally trim a segment, force mono, or choose a target bitrate. Leave everything at defaults for one-click conversion.
- 4.Click Extract audio. The browser converts locally and triggers an automatic download — no server uploads involved.
Why use this video to MP3 converter?
🔒 100% Private
Files never leave your device. Demuxing, trimming, and encoding all happen in your browser.
💎 Lossless packet copy
When the source codec matches the container (AAC→M4A, Opus→OGG, FLAC→FLAC), the tool copies packets without re-encoding.
🎛️ Five output formats
Export to MP3, M4A, WAV, OGG, or FLAC with control over bitrate and channel layout.
⚡ Fast and streaming
Handles large video files without loading them fully into memory, using streaming demux and a WASM MP3 encoder.
Common Use Cases
- •Meeting recordings: pull clean audio from screen captures for notes or transcription
- •Podcast video episodes: extract audio-only files for your RSS feed
- •Lectures and training: convert long video lessons into MP3s you can listen to on the go
- •Music videos: save the audio track for personal listening in a compressed or lossless format
- •Transcription prep: produce smaller MP3 files ready for Whisper or other transcription services
Frequently Asked Questions
Which video formats can I convert?
MP4, MOV, M4V, MKV, and WEBM are fully supported. FLV and older AVI files may work through a fallback path; if the browser cannot decode a codec, you will see a clear error.
Will extraction reduce audio quality?
If the source audio codec matches the chosen container (for example AAC→M4A or Opus→OGG), the tool copies packets bit-for-bit with no quality loss. Otherwise the tool re-encodes at your selected bitrate.
Can I download audio from YouTube or other platforms?
No. This tool only processes local video files you already have on your device. It does not download or scrape third-party platforms.
How large a video file can I process?
Files up to 2 GB work reliably on most laptops. The tool streams data instead of loading the whole video into memory, so large files are processed efficiently.