Is the PNG to AVIF converter free?

Yes — Morphix's PNG to AVIF converter is 100% free with no sign-up, watermarks, or file-size limits beyond your device's memory.

Are my PNG files uploaded to a server?

No. Conversion runs entirely in your browser using WebAssembly — your PNG files never leave your device.

Does it work offline?

Yes. After the first visit, the PNG to AVIF converter works fully offline.

Back to Morphix File Converter

PNG → AVIF

PNG to AVIF Converter

Convert PNG graphics to AVIF and cut page weight dramatically.

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.

Why convert PNG to AVIF?

PNG is lossless and heavy. AVIF supports both lossy and lossless modes plus alpha transparency, so screenshots and UI graphics keep their look at a fraction of the size.

How it works

Drop your PNG 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.

Related converters

BMP to PNG JPG to AVIF AVIF to PNG PNG to WEBP JPG to PNG HEIC to JPG

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