MP4 to MP3
Extract an MP3 audio track from a video.
MP4 to MP3
Drop your files here
or choose files from your device
Jak používat MP4 to MP3
MP4 to MP3 takes a video file and returns its soundtrack as an MP3 audio file, with the picture discarded. You choose the MP3 bitrate from 128, 192, 256 or 320 kbps, with 192 kbps as the default. Conversion uses an FFmpeg WebAssembly build that loads in the page, and the result shows the output size in MB.
- Choose a source file. If the tool accepts multiple files, arrange them in the order you want.
- Set mp3 bitrate (kbps).
- Run mp4 to mp3, review the output, then use the available copy or download controls.
Funkce nástroje
Extract an MP3 audio track from a video.
- MP3 bitrate (kbps)
- 128 · 192 · 256 · 320
Omezení a zpracování
Media input is bounded to 50 MB per file and 100 MB combined. WebAssembly conversions have a 180-second limit and may require substantial browser memory.
Ukázkový vstup
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Časté dotazy
What MP3 bitrate should I pick when extracting audio from an MP4?
The tool offers 128, 192, 256 and 320 kbps and starts at 192 kbps. Higher bitrates produce larger MP3 files. Choosing a bitrate above the quality of the original soundtrack cannot add detail that was not in the video.
Can I extract MP3 audio from a MOV or WebM file instead of an MP4?
The file picker is not limited to MP4, and the file is handed to FFmpeg, which drops the video stream. If the container or codec is unsupported, the tool stops with a message saying the file or codec may be unsupported.
Why does the first MP4 to MP3 conversion take longer?
The first step loads the media engine, which is about 32 MB, before conversion starts. A progress bar then tracks the encoding. Each run is limited to 180 seconds of processing, so very long videos may need to be trimmed first.
Where is my input processed?
This operation processes its source in your browser. Copy and download are explicit actions; source input is not saved in an account or history.
What are the input limits?
Media input is bounded to 50 MB per file and 100 MB combined. WebAssembly conversions have a 180-second limit and may require substantial browser memory.