Convert videos to any format
Drag & drop video file here
Supports MP4, MKV, AVI, MOV, WebM and more
Drag & drop your AVI video
Automatic conversion with optimal settings
Save your converted MKV file
MKV preserves AVI content while adding modern features like multiple audio tracks, subtitles, and chapter markers.
AVI is a classic multimedia container format introduced by Microsoft in 1992. While considered legacy, it remains widely used for compatibility with older systems and simple video storage.
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.
AVI is simple but limited. MKV is flexible and modern while maintaining compatibility with the same video codecs.
Common scenarios for this conversion
Convert AVI to MKV when your device or app doesn't support the original format.
Upload MKV instead of AVI for better support on YouTube, Instagram, and TikTok.
Convert to MKV for seamless import into professional editing software.
Play AVI files on any phone by converting to MKV.
Your files never leave your device. All conversion happens in your browser — no server uploads.
Hardware-accelerated conversion powered by WebCodecs and WebAssembly.
Convert between any video format combination.