Video Converter
Convert video between MP4, WebM and MKV.
Loading the tool
Your file is processed on your device with FFmpeg and is never uploaded. The first run downloads about 30 MB of processing code once. Long files can take several minutes, so keep this tab open. WebM encoding is slower than MP4.
At a glance
- Runs
- In your browser, on your device
- Works with
- Video (MKV, AVI, MOV, WEBM, MP4 and other formats your browser can open)
- Largest file
- 300 MB
- Cost
- Free, no account needed
How to use Video Converter
- Choose a video.
- Pick the output format.
- Select Convert video and download.
Privacy and limits
This tool runs in your browser. The file you choose is read and processed on your device and is never uploaded to our server. Because your device’s memory does the work, files are limited to 300 MB.
Questions
- Is Video Converter free to use?
- Yes. You do not need an account and there is nothing to pay.
- Is my file uploaded anywhere?
- No. The file is processed inside your browser tab and stays on your device. Closing the tab clears it.
- Is there a file size limit?
- There is no upload limit because nothing is uploaded, but your device’s memory is used. This tool is set to accept files up to 300 MB.