How to convert AVIF to PNG, and why the PNG comes out bigger
The short answer. Open the AVIF to PNG page, choose up to 20 AVIF files of up to 50 MB each, press Convert to PNG, then Download. PNG is lossless and keeps transparency, so nothing more is lost, but expect a much larger file: AVIF is the smallest of the web formats, and PNG compresses without throwing detail away.
AVIF is the format many websites now send instead of JPEG or PNG, because it is the smallest at the same quality. It is also younger than most software: older editors and viewers open it as an empty frame or not at all, and upload forms often refuse it. PNG opens everywhere. The conversion runs in your browser, so the pictures are never uploaded.
How to convert AVIF to PNG
- Open AVIF to PNG and drop the AVIF files on the box, or click it to choose them. PNG is already set under Convert to.
- Read the line under the choices. For this pair it says only one thing: PNG holds one frame, so only the first frame of an animated AVIF is kept.
- There is no Quality slider, because PNG is lossless. Transparent areas stay transparent.
- Press Convert to PNG and wait for each row to show Done.
- Press Download. One file saves as a PNG with the same name,
holiday.avifbecomingholiday.png; several arrive as one zip.
On the general Convert Image page, an AVIF is offered JPG first, the format people most often want a photo turned into. Pick PNG there, or use the AVIF to PNG page, which starts on it.
A worked example: why the PNG is bigger
Take a 1920 × 1080 picture saved from a website as an AVIF.
- The pixels themselves are 1920 × 1080 = 2,073,600 of them. Stored with no compression at all, as a 24-bit BMP, that picture is 6,220,854 bytes, about 5.9 MB.
- AVIF gets far below that by discarding detail the eye is unlikely to miss. That is why the file you downloaded was small.
- PNG must keep every pixel exactly as it is now. It compresses, but only without loss, so it lands between the two, and much larger than the AVIF. For a picture with no transparency, the 5.9 MB uncompressed figure is roughly the most it can come to.
Converting cannot bring back detail the AVIF already discarded. The PNG is an exact copy of the AVIF as it looks, in a format everything opens.
Which format to convert an AVIF to
| You need | Convert to | What the pair costs |
|---|---|---|
| An image any program opens, transparency kept, no further loss | PNG | the file is much larger; the first frame only |
| The smallest file a form or email will take | JPG | transparent areas become white; a little detail is lost; first frame only |
| A smaller web file for a site that reads WebP but not AVIF | WebP | a little detail is lost; transparency is kept |
For a photo going into a form, AVIF to JPG is usually the better choice. For a logo, a screenshot or anything with a transparent background, PNG is.
If it doesn't work
- A picture saved from a website will not open, though its name ends in .png. It may be an AVIF under the wrong name. The page reads the file's first bytes, not its name, and says so: "This is named .png but it is really an AVIF. We will treat it as an AVIF." Then convert it to PNG as normal.
- The PNG is too big to upload. Convert to JPG instead, or run the PNG through Compress Image and change its format there.
- An animated AVIF gave one picture. PNG holds one frame, so only the first is kept.
- A file was refused as too large. The limit is 50 MB per file and 20 files per batch.
Questions people ask
How do I convert AVIF to PNG?
Open the AVIF to PNG page, drop up to 20 AVIF files of up to 50 MB each, and press Convert to PNG, then Download. PNG is already selected and keeps transparency. Several files arrive as one zip. The conversion runs in your browser, so the pictures are not uploaded to any server.
Does converting AVIF to PNG lose quality?
No further quality is lost, because PNG is lossless: every pixel of the AVIF is kept exactly as it now looks. Detail the AVIF discarded when it was first made does not come back, though. The only thing the pair drops is animation: PNG holds one frame, so an animated AVIF keeps its first frame.
Why is my PNG so much bigger than the AVIF?
AVIF is the smallest web format because it discards detail; PNG keeps every pixel without loss. A 1920 × 1080 picture is 2,073,600 pixels, about 5.9 MB uncompressed as a BMP, and the PNG lands well above the AVIF, below that ceiling. For a smaller file that opens everywhere, convert the AVIF to JPG instead.
Why won't my computer open AVIF files?
AVIF arrived recently, and editors and viewers installed a few years ago have never heard of it, so they show an empty frame or an error. Many upload forms refuse it for the same reason. Converting to PNG or JPG gives a file every program opens; PNG keeps transparency and JPG gives the smaller file.
Is it safe to convert AVIF to PNG online?
On this site the pictures never leave your device: the AVIF is read and the PNG written by your own browser, so there is no upload and nothing to delete afterwards. Each file is identified from its first bytes, not its name, so a file with the wrong extension is still converted correctly.
Sources
Checked 15 Oct 2026. Every fact on this page is a setting or a rule of the Convert Image tool, read from its own code:
- The limits (20 files, 50 MB each), the pair costs (PNG holds one frame; JPEG has no transparency and is lossy; WebP is lossy), the target offered first for an AVIF (JPG), the output file name and the extension-mismatch message.
- The 6,220,854-byte figure is the size of a 1920 × 1080 picture written by the tool's own BMP encoder: a 54-byte header and 3 bytes for each pixel.