justyourvideoVideo Converter
Any video to MP4, WebM, MOV or MKV, on your device.
- 100% Free
- No Sign Up
- Works in Your Browser
Convert video
Convert between MP4, WebM, MOV and MKV
Drag & drop videos
or click to browse. You can also paste.
MP4, MOV, WebM, MKV, up to 4 GB. 10 at a time.
Total-
Processed on your device. Nothing is uploaded.
More Video Tools
View all tools- MOV to MP4Turn MOV or any other video into MP4
- WebM to MP4Turn WebM or any other video into MP4
- MKV to MP4Turn MKV or any other video into MP4
- MP4 to WebMTurn MP4 or any other video into WebM
- Compress videoMake video files smaller to share or upload
- Trim videoCut the start and end off a video
- Video to MP3Extract the sound from a video as MP3
- Video to GIFTurn a clip of a video into an animated GIF
- Crop videoCut away the edges of the picture
- Files uploaded
- 0
- Free to use
- 100%
- Per file
- 4 GB
How to convert video
Three steps, all in your browser.
- 1
Add your videos
Drop, choose or paste one or more videos.
- 2
Adjust settings
Choose the format. Streams are copied when they fit.
- 3
Download
Save each file, or all of them as a ZIP.
Video Converter: what to know
A video file is a container (MP4, MOV, WebM, MKV) holding a video stream and usually an audio stream, each compressed with a codec such as H.264, HEVC, VP9 or AAC. Converting changes the container and, when needed, the codecs.
When the new container can hold the existing streams, they're copied straight across without re-encoding. That's fast and lossless. Otherwise the video is re-encoded with a codec the new format supports and your browser can encode.
Popular uses
- Making videos play on TVs, phones and older computers
- Preparing WebM files for a website
- Opening MKV recordings in editors that only take MP4 or MOV
- Standardizing a batch of clips to one format
Tips for the best result
- Leave Most compatible on for MP4 and MOV: it guarantees H.264 video and AAC audio.
- Turn it off to keep the original codecs, which is faster when the container allows them.
- Converting never improves quality; it only changes how the video is stored.
Read how JustYourVideo processes videos and our privacy details. Your videos are processed on your device and never uploaded. Keep your originals and check each result before replacing anything.