MP4 → FLV
Convert MP4 video to FLV 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.
MP4 is the safe default, but it is not what every editor, uploader or legacy device actually wants. FLV is the legacy Flash container some archival players and old streaming servers still require, so converting turns a file you are stuck with into one you can actually use. Morphix runs the whole MP4 → FLV conversion locally with WebAssembly, so even confidential material never leaves your device.
Drop your MP4 file above and Morphix decodes it locally, then re-encodes it as FLV 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.
Keep your files & browsing private — get NordVPN