Browser FFmpeg recipe
Convert Video Format Online with FFmpeg
Create an MP4 output from a different video format.
Command
Run this FFmpeg command
ffmpeg -i input.avi -c:v libx264 -crf 24 -preset fast -c:a aac -b:a 128k converted.mp4When to use it
- legacy formats
- upload compatibility
- browser playback
How it works
- Upload the source video.
- Keep the MP4 output name or change it to the format you need.
- Run FFmpeg and download the converted file.
Option reference
| Option | What it does |
|---|---|
-c:v libx264 | Uses the H.264 video encoder. |
-crf 24 | Sets the quality and size balance. |
-c:a aac | Uses AAC audio for MP4 compatibility. |
Practical notes
- Changing only the extension is not a real format conversion.
- Some formats require different codec settings than this MP4 preset.
FAQ
Can this convert any video format?
It can handle formats supported by the browser FFmpeg build.
Why choose MP4 output?
MP4 is accepted by many browsers, phones, editors, and upload platforms.