JFIF → AVIF
Convert JFIF images to AVIF 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.
JFIF downloads are ordinary JPEGs with an extension Windows and most upload forms refuse to recognise. AVIF is the most efficient still-image codec in wide use and routinely halves the file size of a JPEG at matching quality, so converting turns a file you are stuck with into one you can actually use. Morphix does the whole JFIF → AVIF conversion locally with WebAssembly, so even sensitive material never leaves your device.
Drop your JFIF file above and Morphix decodes it locally, then re-encodes it as AVIF 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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