Is transparency preserved?

Yes. Both AVIF and PNG support a full alpha channel, including semi-transparent pixels, so the conversion is clean. This is the main reason to pick PNG over JPG as a destination.

Why is the PNG so enormous compared to the AVIF?

On the fixed test image here, a 109 KB AVIF became a 2.06 MB PNG — around nineteen times larger, the biggest expansion of any conversion on this site. AVIF is extremely good at discarding detail; PNG refuses to discard anything. The better the source format compressed, the bigger the lossless copy becomes.

Is this a lossless conversion?

The PNG step is lossless — every pixel handed to it is stored exactly. But it cannot recover detail the AVIF already discarded, so you get a perfect copy of a lossy image rather than a restored original.

When should I choose PNG rather than JPG?

When the image has transparency, when it contains text or sharp graphic edges, or when you are about to edit it and want no further generational loss. For an ordinary photograph headed to email, JPG is far more practical.

Is the PNG optimised?

Yes. Every PNG here passes through oxipng, which rewrites the compression losslessly — bit-for-bit identical pixels, smaller file.

Is my image uploaded?

No. Decoding and encoding both run in this browser tab. The Uploaded readout beside the result measures the page's outbound traffic directly, so a successful conversion reads 0 B.

Is there a file size limit?

None imposed. Because the PNG output here is unusually large, memory is the practical constraint sooner than on any other converter on the site.

Can I convert several at once?

You can, but keep batches small. A single result can be several megabytes, and holding a few in memory at once will exhaust a phone quickly.

Will there be a watermark?

No. Nothing is added to the image and nothing is held back.

Why did I get an AVIF file in the first place?

Because websites serve AVIF to save bandwidth. Saving an image from a modern web page often produces an AVIF even when the original upload was a JPG or PNG.

Convert AVIF to PNG

A lossless PNG copy with transparency intact, made on your own machine. Nothing is uploaded.

ReadyAVIF → PNG

Uploaded0 B

What next

Shrink it losslessly

How do I convert AVIF to PNG?

To convert an AVIF to PNG, drop the file onto this page and download the PNG it returns. The conversion runs in your browser, nothing is uploaded, and transparency is preserved. Expect a very large file: on our test image a 109 KB AVIF became a 2.06 MB PNG, roughly nineteen times larger.

How to do it

Open the converter. Open this page in any modern browser. Nothing needs installing.
Add your AVIF files. Drag them onto the panel or click to choose. Alpha transparency is carried through.
Let it encode. Each PNG is written losslessly, then optimised with oxipng — the same pixels in a smaller file.
Download the PNG. The result opens in essentially any image editor, including ones that reject AVIF outright.

At a glance

Converts	AVIF to PNG
Transparency	Preserved
Compression	Lossless encode, but detail already lost by AVIF cannot come back
Where it runs	In this browser tab. The file is not uploaded
File size limit	None imposed — your device memory is the ceiling
Cost	Free
Account needed	No
Watermark	None
Works offline	Usually after first use, but not guaranteed — there is no offline app

What it actually produces

Measured, not estimated. A procedurally generated 2400×1600 (3.8 MP) test image built to carry photographic entropy: value noise across nine octaves down to near-pixel scale, a dense field of small high-contrast features, a smooth gradient, hard edges and light grain. It is not a photograph — it is reproducible, which a photograph is not. Each figure below comes from running that image through this page.

Input	Output	Change
109 KB	2.06 MB	19.3× larger

Your own files will differ — a photograph, a screenshot and a diagram compress very differently. The point of a fixed image is that the formats can be compared with each other, not that your result will match.

Why convert AVIF to PNG?

Two distinct reasons.

Compatibility. AVIF renders in every current browser but is still rejected by most desktop photo software, most print workflows and plenty of upload forms. PNG is accepted essentially everywhere.

Transparency. If the image has a transparent background, PNG keeps it while remaining universally readable. Converting to JPG would flatten it to white.

Be ready for the file size

This is the most dramatic expansion of any conversion on this site. On the fixed test image used for every measurement here, a 109 KB AVIF became a 2.06 MB PNG — roughly nineteen times larger.

The rule underneath it is simple: the better the source format compressed, the larger its lossless copy will be. AVIF is exceptionally good at discarding detail your eye will not miss. PNG has to store every pixel that remains, exactly, including the fine artefacts AVIF introduced — and fine detail is what lossless compression handles worst.

For comparison, on the same corpus a JPG expanded about 6.5× and a WebP about 11× when converted to PNG. AVIF’s 19× is the same effect, further along.

Is anything actually restored?

No. The PNG step is lossless, but it is lossless from the point you start.

You get a perfect copy of the decoded AVIF — artefacts and all. That is genuinely useful, because further edits and saves will not compound the damage. It is not the same as recovering the original.

PNG or JPG?

PNG for transparency, for text and sharp graphics, and for images about to be edited.
JPG for ordinary photographs — around 314 KB on our test image, against the PNG’s 2.06 MB, with no visible difference at normal viewing sizes.

Questions

Is transparency preserved?: Yes. Both AVIF and PNG support a full alpha channel, including semi-transparent pixels, so the conversion is clean. This is the main reason to pick PNG over JPG as a destination.
Why is the PNG so enormous compared to the AVIF?: On the fixed test image here, a 109 KB AVIF became a 2.06 MB PNG — around nineteen times larger, the biggest expansion of any conversion on this site. AVIF is extremely good at discarding detail; PNG refuses to discard anything. The better the source format compressed, the bigger the lossless copy becomes.
Is this a lossless conversion?: The PNG step is lossless — every pixel handed to it is stored exactly. But it cannot recover detail the AVIF already discarded, so you get a perfect copy of a lossy image rather than a restored original.
When should I choose PNG rather than JPG?: When the image has transparency, when it contains text or sharp graphic edges, or when you are about to edit it and want no further generational loss. For an ordinary photograph headed to email, JPG is far more practical.
Is the PNG optimised?: Yes. Every PNG here passes through oxipng, which rewrites the compression losslessly — bit-for-bit identical pixels, smaller file.
Is my image uploaded?: No. Decoding and encoding both run in this browser tab. The Uploaded readout beside the result measures the page's outbound traffic directly, so a successful conversion reads 0 B.
Is there a file size limit?: None imposed. Because the PNG output here is unusually large, memory is the practical constraint sooner than on any other converter on the site.
Can I convert several at once?: You can, but keep batches small. A single result can be several megabytes, and holding a few in memory at once will exhaust a phone quickly.
Will there be a watermark?: No. Nothing is added to the image and nothing is held back.
Why did I get an AVIF file in the first place?: Because websites serve AVIF to save bandwidth. Saving an image from a modern web page often produces an AVIF even when the original upload was a JPG or PNG.

About these formats

Sources

Portable Network Graphics (PNG) Specification, Third Edition — W3C
AV1 Image File Format (AVIF) specification — Alliance for Open Media
oxipng, the lossless PNG optimiser used here — oxipng contributors