FLV → MKV
Convert FLV video to MKV entirely in your browser — no upload, no watermark, no sign-up.
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.
FLV is the dead Flash video container, so anything recorded before 2015 is stuck behind a format nothing plays. MKV is the flexible open container that keeps every audio track, subtitle and chapter in one file, so converting turns a file you are stuck with into one you can actually use. Morphix runs the whole FLV → MKV conversion locally with WebAssembly, so even confidential material never leaves your device.
Drop your FLV 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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