PNG to AVIF Converter

Compress PNG graphics into AVIF for an efficient modern file that can carry transparency, wide colour and HDR.

Why convert PNG to AVIF?

If your PNG is large and destined for the web, AVIF is usually the most efficient home for it. It keeps the alpha channel intact while compressing considerably harder than either PNG or WebP.

AVIF also carries colour information PNG handles less efficiently — wide gamut and high dynamic range — which matters for rich illustration and photographic artwork with transparency.

Transparency: Fully preserved. AVIF supports a complete alpha channel, so partial transparency and soft edges convert cleanly.

Diagram showing a PNG image being converted to AVIF with QuickConvertPDF

What you get converting PNG to AVIF

Smallest files with alpha

AVIF generally beats both PNG and WebP for size while keeping transparency.

Transparency fully retained

Soft shadows and feathered edges survive with no white fringing.

Wide colour and HDR

Richer colour than PNG's common 8-bit output, useful for vivid artwork.

Great at low bitrates

Gradients stay smooth where other formats start to band.

What to expect: Expect a considerably smaller file than the PNG — often dramatically so for photographic content. Encoding takes a little longer than PNG or WebP because AVIF does more work.

When to convert PNG to AVIF

Serving large transparent artwork on a performance-critical page
Compressing illustration and artwork libraries for the web
Modern picture elements with a PNG or WebP fallback
Reducing storage costs for a big archive of graphics

PNG vs AVIF

	PNG	AVIF
Compression	Lossless	Lossy
Transparency	Yes	Yes
Best for	a lossless format with full transparency support, ideal for graphics, logos and screenshots	the newest of the mainstream formats, offering the smallest files plus transparency and wide colour

PNG to AVIF — frequently asked questions

Yes, completely. AVIF has a full alpha channel, so partial transparency, soft shadows and feathered edges are preserved.

Usually yes, though the margin is narrower for flat graphics than for photographs. Both are far smaller than PNG.

WebP can be lossless or lossy; this converter produces lossy WebP output with a balanced default.

Current versions of Chrome, Firefox, Edge and Safari all support it. Provide a WebP or PNG fallback for older software.

AVIF's encoder is substantially more complex. The extra time is the price of the smaller file.

Yes, if it is your master copy. Keep the lossless PNG for editing and use AVIF for delivery.

Related tools

AVIF to PNG PNG to WebP JPG to AVIF Compress Image

Who benefits from converting PNG to AVIF?

These are common examples; the right workflow depends on the file, required output, and your organization’s handling rules.

Front-end developers

Test highly compressed modern images in a browser-focused delivery workflow. A typical use is serving large transparent artwork on a performance-critical page.