Convert PNG to AVIF Online

Convert PNG to AVIF - Complete Guide

Converting PNG to AVIF stays in the raster image family but changes the traits that decide size, quality, transparency, editability, or device support. PNG is a lossless image format commonly used for screenshots, transparent graphics, logos, and high-quality web images. AVIF is a image format. Next-gen format. Below is what actually changes in a PNG→AVIF conversion, what is preserved, and when AVIF is the better choice than keeping PNG.

PNG to AVIF for the smallest modern transparent web images

AVIF often beats WebP on size while still supporting transparency. Use PNG to AVIF when you control the frontend stack and want aggressive performance wins—with a PNG/WebP fallback plan for older clients.

Who converts PNG to AVIF

• Performance-focused frontend teams.
• Brand sites shipping lots of transparent PNG UI.
• CDN pipelines that already negotiate AVIF.
• Design systems exporting PNG masters for multi-format delivery.

PNG to AVIF use cases

• Replace heavy transparent PNG icons with AVIF variants.
• Shrink marketing graphics on a Next.js image pipeline.
• Cut LCP bytes on hero illustrations with alpha.
• Store AVIF derivatives beside PNG masters in object storage.

What PNG to AVIF preserves

• Keeps full transparency, so PNG cutouts and logos retain their transparent backgrounds in AVIF.
• Delivers excellent compression that is often smaller than WebP and much smaller than the source PNG.
• Supports high dynamic range and rich color, which suits detailed photographs and gradients.
• Uses a newer format with less universal support, so some older browsers and desktop apps cannot open AVIF yet.

Best results checklist

• Use AVIF for modern web delivery where the smallest file size is the priority.
• Keep a PNG or WebP fallback for older browsers, email, and apps that do not read AVIF.
• Expect encoding to take longer than JPG or PNG, since AVIF is more compute-heavy to compress.
• For maximum compatibility instead of maximum savings, convert PNG to WebP or JPG.

PNG to AVIF pitfalls

• Assuming every browser/app opens AVIF—keep fallbacks.
• Encoding time can be higher than PNG/WebP; batch offline when possible.
• If compatibility beats size, prefer WebP or PNG.
• Do not delete PNG masters used by design tools.

PNG to AVIF vs PNG to WebP vs keep PNG

• AVIF: smallest modern delivery when supported.
• WebP: broader modern support with solid savings.
• PNG: editing masters and maximum tool support.

Related PNG and AVIF workflows

• AVIF to JPG converter - Turn AVIF back into widely compatible JPG when a tool cannot open AVIF.
• PNG to WebP converter - Choose WebP for smaller web files with broader support than AVIF.
• PNG to JPG converter - Pick JPG when universal compatibility matters more than the smallest size.
• Image compressor - Reduce image size further when you need to hit a strict upload limit.
• PNG converter tools - Convert PNG to AVIF, WebP, JPG, and other image formats from one place.

What changes when you convert PNG to AVIF

• Expect a smaller output file: AVIF is typically more space-efficient than PNG for the same content.

About the PNG format

PNG (Portable Network Graphics) is a lossless image format that supports transparency. Our free PNG converter allows you to convert PNG files to JPG, WEBP, GIF, BMP, PDF, and many other formats. You can also convert any image format to PNG to take advantage of its transparency and lossless compression.

• Full name: Portable Network Graphics
• Developer: PNG Development Group
• Introduced: 1996
• Compression: Lossless (DEFLATE)
• Color depth: 24-bit (16 million colors) + 8-bit alpha
• Opens with: every browser, Photoshop, GIMP, Figma

Where PNG is strong: lossless quality with no compression artifacts; full alpha transparency; crisp text, screenshots, and line art.

Typical PNG uses: screenshots, logos and UI graphics, images that need transparent backgrounds.

About the AVIF format

AVIF is the newest image format offering the best compression. Convert AVIF to compatible formats or optimize images by converting to AVIF.

• Full name: AV1 Image File Format
• Developer: Alliance for Open Media
• Introduced: 2019
• Compression: AV1
• Opens with: modern browsers, GIMP, Squoosh

Where AVIF is strong: excellent compression — often smaller than WebP; supports transparency, animation, and HDR.

Typical AVIF uses: next-generation web images, minimising page weight.

What AVIF keeps

• Transparency / alpha channel is carried over.
• Image dimensions (width and height in pixels) stay the same unless you resize.
• AVIF adds: excellent compression — often smaller than WebP.

Things to watch out for

• One AVIF limitation to keep in mind: newer format with less universal app support.

When to convert PNG to AVIF

• Convert PNG to AVIF for next-generation web images.
• Convert PNG to AVIF for minimising page weight.
• Pick AVIF when you need supports transparency, animation, and HDR.

PNG vs AVIF — format comparison

A quick side-by-side of the structural differences between PNG and AVIF, so you can confirm this is the right conversion for your file:

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