MP4 Converter
Convert any video to MP4 for free: MOV, MKV, WebM, TS, 3GP, and screen recordings become an MP4 that plays everywhere. Nothing is uploaded, and there's no watermark.
Drop files to convert
See their format, then choose an output.
Any media file this browser’s engine can read. You can also drag in a whole folder.
How to convert a video to MP4
Open a MOV from an iPhone, an MKV, a WebM screen recording, or another video and save it as an MP4 that plays on phones, TVs, and in every editor. When the video and sound already suit MP4, they're copied without re-encoding, so it's quick and the quality stays the same; anything else is re-encoded. Everything runs in your browser, so nothing is uploaded.
Step 1
Choose your videoPick a MOV, MKV, WebM, or other video, or drop it above.Step 2
Keep MP4MP4 is selected; tracks MP4 can hold are copied as they are.Step 3
Download the MP4Save the MP4 when the conversion finishes.
What to expect
- Supported inputs
- MOV, MKV, WebM, MPEG-TS, MTS, 3GP, M4V, and other video this browser's engine can read.
- What happens
- Tracks MP4 can hold are copied unchanged; others are re-encoded to a codec MP4 and this browser support. MP4 is selected first; you can choose another format.
- Limits
- Re-encoding takes longer and depends on this browser's encoders. Subtitle tracks are not carried into the MP4.
Private by design
Your video stays on your device
Mastershot processes your file locally in this browser. It does not need to be uploaded to a server, and you do not need an account to use the tool.
- No upload
- No signup
- No watermark