MP4 to MKV converter
Convert MP4 video to MKV for a player or app that requires MKV files.
Choose a file or drag it here
MP4, AVI, MOV, FLV, MKV, WebM, 3GP, MPEG, MPG, GIF, WMV, TS (up to 500 MB)
- Input
- MP4 files
- Utdata
- MKV
- Limit
- Up to 500 MB
- Files
- One at a time
Turn an idea into a video
Give Storybook a topic or an article link. It makes an illustrated video with narration and music.
How to convert MP4 to MKV
- 01
Choose your MP4 file
Drop it on the box or pick it from your device. The limit is 500 MB per file.
- 02
Confirm MKV
MKV is already selected in Convert to. Select Convert, and a short security check runs first.
- 03
Download the MKV
Select Download when the conversion finishes. Download links expire after one day.
More in Konverterare
All 33 toolsWhy convert MP4 to MKV?
Move a video into an MKV output through re-encoding. The conversion does not add subtitles, chapters, or new audio tracks.
- Why leave MP4. Choose MKV when your app or upload destination requires that format.
- Why use MKV. MKV suits video archives and files with several audio tracks or subtitles.
- What you get. The MKV output uses H.264 video and AAC audio. The converter has no subtitle or attachment controls. Keep the original. The converted file can differ in size and metadata, and some apps may still not play it.
- Kvalitet. Converting MP4 to MKV compresses the picture again, which can lower its quality a little. It never adds resolution or detail the MP4 did not have.
- Your rights. Convert only files you own or have permission to use.
MP4 vs MKV
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MP4 to MKV questions
Yes. It is free and needs no account.
Yes. The conversion runs on Sceneform's servers, so your file is uploaded first. Uploads are deleted after processing. Download links expire after one day.
Up to 500 MB. A larger file is rejected before it uploads, with the message "Choose a file under 500 MB."
Converting MP4 to MKV compresses the picture again, which can lower its quality a little. It never adds resolution or detail the MP4 did not have.
No. The converter takes one uploaded file at a time. It does not read links, and it has no bitrate, resolution, trim, crop or batch controls. The MKV output uses H.264 video and AAC audio. The converter has no subtitle or attachment controls.
The MKV output uses H.264 video and AAC audio. The converter has no subtitle or attachment controls. Keep the original. The converted file can differ in size and metadata, and some apps may still not play it.
Compare the output with your MP4 before using it. Do not expect a lossless container-only change.