Video
Compress MKV
Drop your files here
Video, audio, images and documents: MP4, MP3, HEIC, DOCX, PDF and 33 more formats. Several files or a link at once.
Choose files
When to compress
MKV — a container for films and series that holds several audio tracks and subtitles. When a video doesn't fit a messenger or email limit. Pick the file size you need and the video is compressed to fit it with some room to spare.
What changes in the file
The video is re-encoded at a lower bitrate. The smaller the size and the longer the video, the more visible the loss, so for small sizes the resolution drops on its own.
Which settings to pick
Pick a size: 10 MB for Discord, 25 MB for email. If picture quality matters, cut what you do not need under Trim: the rest gets more bitrate.