AVI → MKV
Repackage old AVI videos into flexible MKV containers offline.
Drop files here
or browse from your device
images · audio · video · documents · archives · up to ~500MB
100% Private
Runs in your browser. No upload.
Instant
No queue, no server roundtrip.
Offline-ready
Works after first load.
AVI has hard limits on subtitles, chapters and multiple audio tracks that make it a poor home for a modern library. MKV carries all of that in one file, which is why media servers like Plex and Jellyfin prefer it.
Drop your AVI file above and Morphix decodes it locally, then re-encodes it as MKV using WebAssembly + the browser's native codecs. Nothing is ever uploaded — your files stay on your device. Batch as many files as your machine can handle.
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