justyourvideoMKV to MP4 Converter
MKV or any other video to MP4, right in your browser.
- 100% Free
- No Sign Up
- Works in Your Browser
MKV to MP4
Turn MKV or any other video into MP4
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- Convert videoConvert between MP4, WebM, MOV and MKV
- MOV to MP4Turn MOV or any other video into MP4
- WebM to MP4Turn WebM 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 MKV to MP4
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.
MKV to MP4 Converter: what to know
MKV (Matroska) is a flexible container that can hold almost any video and audio codec, plus multiple audio tracks and subtitles. That flexibility is why some TVs, phones and editors refuse it.
Many MKV files already contain H.264 video and AAC audio. Those are copied into an MP4 without re-encoding, which takes seconds and keeps the exact quality. Other codecs are re-encoded to H.264 and AAC.
Popular uses
- Playing recordings on TVs and phones
- Editing in apps that don't accept MKV
- Uploading to sites that require MP4
- Converting game or screen recordings
Tips for the best result
- Only the main video and audio track are converted. Extra audio languages and subtitles are left out.
- Turn off Most compatible to keep HEVC or VP9 inside the MP4 without re-encoding.
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.