AVIF to PNG

What is AVIF?

AVIF (AV1 Image File Format) is a 2019 still-image standard built on the AV1 video codec. It compresses photographic images dramatically more efficiently than JPG, WebP or PNG — typically half the file size of WebP at the same quality, and a third the size of JPG. AVIF supports an alpha channel, deep colour (10 and 12 bits per channel), wide gamuts and HDR metadata. Native decoding is now in every major browser released since 2022, which is why AVIF has rapidly become the default delivery format for performance-conscious websites and CDNs.

What is PNG?

PNG, Portable Network Graphics, is the web’s universal lossless raster format. Designed in the mid-1990s as a patent-free replacement for GIF, it stores every pixel value with no compression artefacts, supports a full alpha channel for transparency, and uses deflate-based compression that favours flat colour, screenshots and line art. PNG has been supported by every browser, editor and CMS for nearly thirty years, making it the safest lossless target when you need to move an image out of a newer format like AVIF.

Why convert AVIF to PNG?

Preserving transparency is the standout reason. PNG has the same kind of alpha channel as AVIF, so a logo, icon, product cut-out or game asset keeps its exact transparency when converted — you do not have to pick a background colour as you would with a JPG output. This is the right conversion for design work, print prep, document insertion and any workflow where the image will be composited onto a non-uniform background.

Lossless editing workflows are the second case. Once an image is PNG, each subsequent save preserves the exact pixels with no further codec loss. That matters when you plan to crop, retouch, annotate or colour-correct the image before final delivery. AVIF re-saves through most editors are lossy.

The third case is the long tail of tools that simply do not support AVIF yet. Microsoft Word, many CMS plugins, e-commerce platforms, document editors and slide tools either reject AVIF outright or render it incorrectly. PNG sails through all of them.

How to use this AVIF to PNG converter

1. Drop your AVIF file onto the dropzone, or click to browse.
2. There is no quality slider — PNG is lossless, so the output captures the AVIF’s decoded pixels exactly.
3. Click Convert to PNG to encode the result. Large AVIFs and AVIFs with high pixel counts take a moment, because PNG has to deflate every pixel; expect a second or two for typical web images, longer for prints.
4. Check the converted preview. The caption shows the PNG’s file size, which will be much larger than the AVIF’s.
5. Click Download PNG to save it. The original filename is preserved with .png swapped in.

Quality tips for AVIF to PNG

There is no “more efficient” PNG — the format has no quality knob — so the practical tip is to start from the highest-quality AVIF available. If the AVIF was already heavily compressed for web delivery (common for files saved from a website), the PNG will faithfully preserve those compression artefacts at a much larger file size. To avoid that, ask the original source for the master image rather than the delivery variant.

Also, be aware that AVIFs from web sources are often sub-sampled (stored at half chroma resolution, like 4:2:0 in JPG terms). The browser upsamples on decode, so the PNG looks correct, but extreme zooms may show the chroma resampling. Again, the cleanest path is to source a high-bit- depth, 4:4:4 AVIF if you have the option.

Privacy

Your AVIF file stays on your device. The browser’s native AV1 image decoder runs locally, the canvas redraw runs locally, the PNG encoder runs locally, and the resulting blob becomes a download in your browser’s download manager. There are no network requests after the initial page load; the page works exactly the same with Wi-Fi switched off.

Browser compatibility

AVIF decoding requires a modern browser: Chrome 85+, Edge 90+, Firefox 93+ or Safari 16+. PNG encoding has been supported through the canvas API in every browser since canvas existed. On older browsers — IE11, pre-2022 Safari, very old Android WebView — the converter shows a clear decode error and asks you to use a current browser. There is intentionally no JavaScript fallback decoder, because shipping one would slow the page enormously for the 99%+ of users whose browser already supports AVIF.