Resize video resolution
Drag & drop video file here
Supports MP4, MKV, AVI, MOV, WebM and more
Drag & drop your MKV file
Select target resolution for your MKV video
Save your resized MKV file instantly
Matroska Video
MKV is a flexible, open-standard container format that can hold an unlimited number of video, audio, subtitle, and metadata tracks. It's the preferred format for high-quality video archival and media collections.
Common reasons to resize MKV videos
Save as MKV for maximum compatibility across all devices and platforms.
MKV is widely supported across all major web platforms and social media.
Use MKV as an intermediate format for video editing workflows.
MKV plays natively on virtually every smartphone and tablet.
Your videos never leave your device.
Hardware-accelerated MKV video resizing.
Resize MP4, MOV, AVI, MKV, WebM and more.