MKV to WEBP Converter

Convert MKV (Matroska video) files to WEBP online, for free, with nothing to install.

To convert MKV to WEBP, select or drop your .mkv file above, check that WEBP is chosen as the output, and click Convert. This conversion runs on our server, and your files are deleted 72 hours later.

What is an MKV file?

MKV – Matroska video. MKV (Matroska) is a flexible open container that can hold any number of video, sound and subtitle tracks. Media players love it; phones and some TVs do not. Converting makes a new file: the video is decoded and encoded again, so converting from a format that lost detail never brings it back.

MKV Converter →

What is a WEBP file?

WEBP – WebP image. WebP is a web picture format from Google that makes smaller pictures than JPG or PNG. A page converted to WebP is a picture of it.

WEBP Converter →

How to convert MKV to WEBP

  1. Click Select File, or drop your .mkv files anywhere on this page. You can add several at once.
  2. Check that WEBP is chosen as the output format. On this page it is picked for you.
  3. Click Convert. When a file has to go to our server, the button says Upload and convert instead.
  4. Click Download next to each file when it's done.

MKV vs WEBP: how they compare

MKVWEBP
LayoutMoving pictures and soundA picture
EditableIn video editorsNo
Created byMatroska team, 2002Google, 2010
Best forFilms with several sound tracks and subtitlesSmall pictures of pages on websites

Good to know

  • The video becomes an animated WEBP of its first 30 seconds, at 10 pictures a second and at most 480 pixels wide, with no sound. WebP keeps more colors than GIF at a smaller size.
  • Each page becomes a picture. A document with more than one page comes back as a ZIP with a WEBP for each page, drawn at 150 dots per inch unless you choose otherwise in Options.
  • The text in the pictures cannot be selected or searched.

Frequently asked questions

Is converting MKV to WEBP free?

Yes. Everyone gets 25 free credits a day, with no account needed. Conversions on our server use one credit per started minute of work, so most cost a single credit. Credits reset at midnight UTC.

Are my MKV files uploaded anywhere?

This conversion runs on our server, because converting video needs ffmpeg, which does not run in a browser. Your file is sent over an encrypted connection, and both it and the result are deleted 72 hours after the conversion. The server has no internet access while it works on your file.

How large can the MKV file be?

Up to 1 GB per file. This conversion runs on our server, which accepts files up to that size.

Will the WEBP look the same as the MKV?

No: it is a short animation of the first 30 seconds at 10 pictures a second, at most 480 pixels wide, with no sound.

Can I convert several MKV files at once?

Yes. Add as many files as you like; they are converted one after another, and each one gets its own Download button.

How long does converting MKV to WEBP take?

In our tests a one-minute 1080p video at 8 Mbit/s took about 9 seconds to become a WEBP file (only the first 30 seconds are used). Time grows with length and picture size and shrinks for smaller pictures; a video that would need more than about 8 minutes is refused at once, with the time it would take.

Can I choose pages or quality for the WEBP?

Yes. Click Options next to the file. Only the settings that make sense for MKV to WEBP are shown.

Convert MKV to other formats

Convert other files to WEBP

All video formats

Updated