AVIF to PNG Converter (FREE TOOL)

Turn AVIF images into PNG files you can edit, share and use in ads. One file or a batch, transparency kept, download each PNG or a ZIP. Nothing is uploaded.

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Built and checked by Marián Cabadaj. Last checked November 2026.

What the facts here come from

Alliance for Open Media, AV1 Image File Format (AVIF) v1.2.0, 2025 for what an AVIF file is: AV1 pictures in a HEIF container.

MDN Web Docs, Image file type and format guide, 2026 for the browser versions, transparency, animation, and AVIF at around 50% smaller than JPG.

W3C, PNG Specification (Third Edition), 2025 for PNG as lossless with an alpha channel.

Meta Ads Guide, image ad specs, 2026 for JPG or PNG as the image ad file types.

Shopify, image_url Liquid filter, 2026 for Shopify picking the image format each browser supports.

The examples on this page are Selzee gallery ads, saved as AVIF and converted to PNG.

The short answer

  • AVIF is an image format built on the AV1 video codec. Lossy AVIF files are around 50% smaller than JPG at similar quality (MDN's image format guide), which is why websites and online stores serve them.
  • PNG is lossless and keeps transparency (the W3C PNG specification). Meta takes JPG or PNG for image ads, not AVIF (Meta's image ad specs).
  • This converter turns AVIF files into PNG in your browser: one file or a batch, transparency kept, each PNG or a ZIP of all. Nothing is uploaded.

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Eight Selzee ads, from AVIF to PNG

Eight ads from the Selzee gallery, each saved as an AVIF and converted to PNG. The caption gives both file sizes.

BÉIS Travel. AVIF 14 KB, PNG 177 KB.
Moongreens. AVIF 38 KB, PNG 647 KB.
Arabian Aromas. AVIF 53 KB, PNG 867 KB.
Viadu. AVIF 35 KB, PNG 600 KB.
SUMS. AVIF 24 KB, PNG 316 KB.
Paniolo, square. AVIF 92 KB, PNG 1,645 KB.
Essentials. AVIF 25 KB, PNG 323 KB.
Nurturedscale. AVIF 41 KB, PNG 398 KB.

AVIF, PNG and JPG compared

What changes when an AVIF becomes a PNG, and why a JPG is the other choice.

Feature AVIF PNG JPG
Compression Lossy or lossless Lossless Lossy
Transparency Yes Yes No
Animation Yes Yes (APNG) No
Browsers Chrome 85, Firefox 93, Safari 16.1, Edge 121 and later All All
Meta image ads Not accepted Accepted Accepted
Our 8 ads, middle size 37 KB 499 KB 140 KB

Sources: MDN's image format guide, the W3C PNG specification and Meta's image ad specs. The sizes are the middle values of the eight ads in the table below. Verified 2026-11-05.

File sizes of the eight ads

The same picture as AVIF, PNG and JPG. The PNG is the largest because it keeps every pixel.

Ad AVIF PNG JPG
BÉIS Travel 14 KB 177 KB 67 KB
Moongreens 38 KB 647 KB 154 KB
Arabian Aromas 53 KB 867 KB 181 KB
Viadu 35 KB 600 KB 158 KB
SUMS 24 KB 316 KB 88 KB
Paniolo (1024 x 1024) 92 KB 1,645 KB 290 KB
Essentials 25 KB 323 KB 110 KB
Nurturedscale 41 KB 398 KB 125 KB

Measured on 5 November 2026: each gallery ad (870 x 1080 unless noted) saved as AVIF at quality 60, as PNG, and as JPG at quality 92, with Pillow 11.3 and libavif. A PNG your browser writes can be a little larger or smaller. Verified 2026-11-05.

What an AVIF file is

AVIF stands for AV1 Image File Format. The Alliance for Open Media publishes it, and the current version is 1.2.0 from 16 October 2025 (the AVIF specification). An AVIF file is a picture compressed with the AV1 video codec and stored in a HEIF container, the same kind of container an iPhone uses for its HEIC photos.

An AVIF can be lossy or lossless, can have a transparent background, and can hold an animation (MDN's image format guide). Every current browser shows it, but many other apps do not open it yet. That gap is why you end up with a file you cannot use.

Have an iPhone photo in HEIC instead? Use our HEIC to PNG converter.

When you need an AVIF as a PNG

For a brand or a marketer, an AVIF file usually arrives by accident: you save a picture from a website, a competitor's store or your own shop, and the file ends in .avif. Converting it to PNG makes it a normal picture again.

Saved an animated GIF, not a still picture? Our GIF to MP4 converter turns it into a video for Reels and TikTok.

  • Ads: Meta Ads Manager takes JPG or PNG for image ads (Meta's image ad specs). An AVIF has to be converted first.
  • Shopify images: Shopify's CDN picks the format each browser supports, with WebP and AVIF as its examples (Shopify's developer docs). Save a product photo from a store page and you can get an AVIF.
  • Editing: PNG opens in every editor and keeps every pixel, so you can crop, add text or remove a background without a second round of loss.
  • Logos and cutouts: PNG keeps a transparent background. JPG fills it with a colour.
  • Sizes for each platform: once it is a PNG, our Instagram image resizer and Facebook image resizer take it as it is.
  • X posts: our X image resizer cuts the PNG to the sizes X shows.
  • Carousels: put several PNGs into one PDF for LinkedIn with our PNG to PDF converter.
  • Ad layouts: our guide to ad creative design shows how to build an ad around the picture.

How to convert AVIF to PNG

  1. Drop your AVIF files

    Choose files, drag them onto the box or paste one. Your browser reads them. They are never uploaded.

  2. Let it convert

    Each file is converted as soon as you add it. One file shows as a large preview, several as a grid.

  3. Download

    Download one PNG, each PNG from the grid, or all of them in one ZIP.

AVIF to PNG: FAQ

How do I convert AVIF to PNG?
Drop the AVIF files into the converter above. Each one becomes a PNG in your browser. Click Download, or Download all (ZIP) for a batch. No account needed. When you need the ads themselves, Selzee makes them for your brand.
Does converting AVIF to PNG lose quality?
No. PNG is lossless, so the PNG keeps every pixel of the AVIF as your browser decodes it. It cannot bring back detail that was lost when the AVIF was made, but it adds no new loss. For ads that start sharp, let Selzee make them.
Why are pictures I save from websites AVIF files?
Websites and stores serve AVIF because it is small: around 50% smaller than JPG at similar quality (MDN's image format guide). Shopify's CDN picks the format each browser supports (Shopify's developer docs), so a saved product photo can arrive as AVIF. Need ads, not just files? Selzee makes ads from your URL.
Is AVIF better than PNG?
For a web page, often yes: the file is much smaller. For editing, ads and sharing, PNG is safer, because almost every app and ad platform opens it. On our eight ads the PNG was 10 to 18 times the size of the AVIF. For ads at every platform's size, try Selzee free.
Can I convert many AVIF files to PNG at once?
Yes. Drop up to 50 files at once. Each one converts in turn, and Download all (ZIP) saves every PNG in one file. When you want a batch of finished ads, start free with Selzee, no card needed.
Does the PNG keep the transparent background?
Yes. A transparent AVIF stays transparent as a PNG. If you need a white background, use our AVIF to JPG converter instead. For ads made from your own brand, paste your URL into Selzee.
Is my file uploaded?
No. The browser decodes the AVIF and writes the PNG on your device. Nothing is sent to a server. For the ads you will run next, start free with Selzee.

How we checked

Last checked: 5 November 2026. The format facts come from the AVIF specification, MDN's image format guide and the W3C PNG specification; the ad file types from Meta's image ad specs; the Shopify line from Shopify's developer docs, each read at the source that day.

The file sizes come from the eight gallery ads on this page, saved as AVIF, PNG and JPG on 5 November 2026 (the note under the size table says how).

  • The format check: a file is checked by its first bytes, not its name, so a renamed PNG is refused, and the message names its real format.
  • Hostile files: an empty file, a 50 MB file, a damaged AVIF, a text file and a 1 x 1 picture each get one plain message, and the page stays usable.
  • The output: every PNG has the same width and height as its AVIF, and a transparent AVIF stays transparent.
  • The privacy: no network request carries the picture.
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A Selzee ad for Moongreens on navy: Quarterly plan, 30% off, with the starter kit, a sleep mask and a cap as free gifts
A Selzee ad for BÉIS Travel: a brown check-in suitcase on white under Built to bring home more than you left with, and 94 L
A Selzee ad for SUMS: Focus on the run, with white running socks and labels for anti-blister protection, cooling mesh and arch band

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