Convert Video Formats for Free
Freely convert between MP4, WebM, MOV, and MKV
Drag and drop your video file here, or click to select
Supports MP4, WebM, MOV, MKV
Your video is not sent externally
Conversion happens 100% in your browser, so no data is sent to our servers.
Ultra-fast Conversion
If the video codec is the same, only the format is changed, allowing even multi-GB files to convert quickly.
Completely Free. No usage limits.
There are no limits on conversion count or file size.
MP4, WebM, MOV, MKV – Convert Freely
You can freely convert between these four formats.
FAQ
Is my video file sent externally?
No. The entire conversion process is handled in your browser. Your file is never uploaded to a server.
Are there file size limits?
No. However, since it uses browser memory, processing time for very large files may vary depending on your device's specifications.
Which formats can be converted?
You can freely convert between MP4, WebM, MOV, and MKV. If the video structure is compatible, conversion is fast with no loss in quality.
Why are some conversions fast and others slow?
If the video codec is compatible, only the format needs to be changed, so it finishes quickly. If the structure is different, the video must be re-encoded from scratch, which takes time proportional to its length.
Can I use it on a smartphone?
Yes, it works in mobile browsers. However, for large videos, converting on a PC is faster and more stable.
Want to make Shorts with your converted video?
Upload your converted video. Our AI will pick out the most engaging parts and create clips for Shorts, Reels, and TikTok.