Change video extension, use like this
Select the file and choose a supported output format, size and bitrate. Keep tabs open during conversion.
Example usage
Recreate browser-readable video as MP4 or WebM without just changing the name to MOV.
Please note
Handles MP4·WebM·MOV playable in browser. Up to 100MB, 5 minutes, approximately 9.44 million pixels, and GIF output is up to 10 seconds, 150 frames. The original is not uploaded. Supported codecs and performance vary by device, and PC use is recommended.
Step-by-step instructions
- Select the file and choose a supported output format, size and bitrate. Keep tabs open during conversion.
- Check the file information and setup instructions, then click Start Conversion.
- Preview and download results. Moving to another tab will cancel the action.
File format and compression are separate choices
MP4 and WebM are containers that hold video data. This tool re-encodes the footage and selected sounds, so it's not just a rename function or a lossless repack. Change size, bitrate, and FPS settings and compare actual results.
| Settings | Meaning |
|---|---|
| 720px · 1.5Mbps · 24FPS | Basic combination to start capacity comparison |
| 1920px · 5Mbps | Comparison values for more detail |
Frequently Asked Questions
Are all videos supported?
No. Even if the extension is the same, this browser may not be able to read it depending on the internal codec. If an error occurs, check the source code created with a supported codec or another browser.
Is it always smaller than the original?
No. It may be larger if the original is already heavily compressed or has high settings. GIFs are also often larger than short videos, so compare the resulting files.
Written and operated by: Moyoutil · Content review: 2026-09-30 · Error report