Video Converter
Change the format of your videos: MOV from iPhone, MKV, AVI or WEBM to MP4, or MP4 to WEBM for the web.
- Select one or more videos
- Choose the output format
- Convert and download
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Your files never leave your device
Choose the right video format
- MP4 (H.264): the universal format that plays on every phone, computer, TV and website. The safest choice.
- WEBM: an open format for websites and browsers.
- MOV: Apple's format, useful for editing on Mac and iPhone.
- MKV: a flexible container popular for archiving and media players.
Common conversions
- MOV to MP4: make iPhone videos play on Windows and Android.
- MKV or AVI to MP4: play videos on TVs, phones and editors that reject MKV.
- MP4 to WEBM: add lighter videos to a website.
- WEBM to MP4: open screen recordings and downloaded clips in more apps.
How it works
File Kingdom converts videos with ffmpeg running in your browser. The first time, the media engine (about 32 MB) is downloaded once. Your videos are never uploaded, so private recordings stay on your device. You can convert several videos in one go and download them together as a ZIP.
Tips
- Converting re-encodes the video; this takes time for long files, especially on phones.
- To make a video smaller as well, use Compress Video.
- Keep the tab open until the conversion finishes.
Frequently asked questions
How do I convert MOV to MP4?
Select your MOV file, choose MP4 and click Convert.
Will quality be reduced?
Videos are encoded at high quality; the difference is usually not visible.
Can I convert several videos at once?
Yes. Select multiple files and download them together as a ZIP.
Are my videos uploaded?
No. Conversion runs in your browser.
Is there a watermark or time limit?
No watermark, no sign-up and no fixed limit; very long videos depend on your device.
Which format should I choose?
MP4 if you are not sure: it plays everywhere.