Free converter · Lossless transform
Convert AVIF to PNG
Short answer
Drop your AVIF file into the converter below and download the PNG file. It runs in your browser with the Canvas API; nothing is uploaded. The pixels are saved as A lossless PNG; transparency is kept, without further loss. Detail the AVIF compression already removed does not come back, and the file is usually larger.
Nothing is uploaded: the photos are decoded and saved in your browser. The converted file does not carry the original's metadata, such as the date or location.
AVIF to PNG; PNG is lossless but cannot restore detail the AVIF discarded. · Lossless transform · Browser-side - nothing uploaded.
Key takeaways
- Expect a bigger file: the PNG was 11.7 to 43.1 times the size of the AVIF in our five tests, for example 82.0 KB became 2.04 MB.
- PNG stores the pixels the browser decoded, so there is no further loss (SSIM 1.000), but it cannot restore detail the AVIF already discarded.
- The AVIF's own quality sets the size: the same portrait saved at CRF 20 (155 KB) gave a 2.34 MB PNG, and at CRF 40 (42.7 KB) a 1.84 MB PNG.
- Decoding took 17 to 50 ms for pictures of 0.5 to 1.4 megapixels.
- Several files can be converted at once, and nothing is uploaded.
Measured: AVIF to PNG
Measured in headless Chromium with the converter's own code (src/lib/heic-convert.ts). Three public domain NASA and archive scans were reduced to 1060 pixels wide and saved as AVIF with libaom at constant rate factor (CRF) 30, and the portrait also at CRF 20 and CRF 40, since a lower CRF is higher quality. Each AVIF was opened in the converter and saved at its defaults: JPG and WebP at quality 0.92, PNG lossless. SSIM compares each result with the pixels the browser read from the AVIF (1.0 would be identical). Other browsers use their own decoders and encoders, so sizes can differ.
| AVIF file | Pixels | AVIF | PNG | Against the AVIF | SSIM | Decode |
|---|---|---|---|---|---|---|
| Portrait, AVIF quality CRF 30 | 1060 × 1320 | 82.0 KB | 2.04 MB | 24.9 times | 1.000 | 50 ms |
| Portrait, higher quality (CRF 20) | 1060 × 1320 | 155 KB | 2.34 MB | 15.1 times | 1.000 | 47 ms |
| Portrait, lower quality (CRF 40) | 1060 × 1320 | 42.7 KB | 1.84 MB | 43.1 times | 1.000 | 29 ms |
| Photo, CRF 30 | 1060 × 1070 | 165 KB | 1.93 MB | 11.7 times | 1.000 | 43 ms |
| Document scan, CRF 30 | 1060 × 440 | 46.6 KB | 641 KB | 13.8 times | 1.000 | 17 ms |
The size of the PNG follows the picture, not the AVIF: the photo with the biggest AVIF (165 KB) gave 1.93 MB, and the small document scan 641 KB.
How the AVIF's own quality sets the size
The same portrait was saved as AVIF at three qualities. A lower CRF means higher quality and a bigger AVIF, and the bigger the AVIF, the more detail there is for the converter to write out.
| AVIF | AVIF size | PNG size | SSIM |
|---|---|---|---|
| Portrait, lower quality (CRF 40) | 42.7 KB | 1.84 MB | 1.000 |
| Portrait, AVIF quality CRF 30 | 82.0 KB | 2.04 MB | 1.000 |
| Portrait, higher quality (CRF 20) | 155 KB | 2.34 MB | 1.000 |
From CRF 40 to CRF 20 the AVIF grew 3.6 times and the PNG grew 1.3 times: the PNG is much less sensitive, because it is written at its own fixed quality.
AVIF vs PNG
| AVIF | PNG | |
|---|---|---|
| Full name | AV1 Image File Format | Portable Network Graphics |
| What is inside | Pictures compressed with the AV1 video codec | Pixels compressed without loss |
| Compression | Lossy or lossless | Lossless |
| Transparency | Transparency supported | Transparency supported |
| Best for | Small photographs on websites; MDN lists it as supported by Chrome, Edge, Firefox, Opera and Safari | Screenshots, logos and graphics with text |
What you get
A lossless PNG; transparency is kept. AVIF to PNG; PNG is lossless but cannot restore detail the AVIF discarded.
When to convert AVIF to PNG
- A site, form or app rejects AVIF.
- You need a file that older software opens.
- You want an editable lossless copy.
Free tools:Convert any image to JPGConvert any image to PNGConvert any image to WebPCompress an image to a target size
When to keep the AVIF
AVIF was much smaller than every other format in our tests. If the destination accepts it, keep the AVIF: converting makes the file bigger and, for JPG and WebP, adds a second lossy step.
Questions people ask
Is this AVIF to PNG converter free and private?
Yes. It is free, needs no account and runs entirely in your browser, so the file never leaves your device.
Will converting AVIF to PNG reduce quality?
No further loss: PNG stores the decoded pixels exactly.
How do I convert AVIF to PNG?
Choose the AVIF file above and download the PNG. It runs in your browser, with several files at once if you like.
Why is the PNG bigger than the AVIF?
AVIF compresses photographs much better than a lossless format. Our PNG files were 11.7 to 43.1 times the size of the AVIF they came from.
Does converting AVIF to PNG lose quality?
No further loss: PNG stores the decoded pixels exactly. It cannot bring back detail the AVIF already discarded.
Which browsers can open AVIF?
MDN's image guide lists AVIF as supported by Chrome, Edge, Firefox, Opera and Safari. The converter uses your browser's own decoder.
Is my image uploaded?
No. The conversion runs in your browser.
What happens to transparency?
PNG keeps transparency.
Can I convert an animated AVIF?
Only the first frame is converted.
More converters
Sources and how we checked
- MDN: Media container formats
- MDN: Web audio codec guide
- MDN: Image file type and format guide
- FFmpeg documentation: stream copy
- MDN: Image file type and format guide (read 2026-10-09)
- FFmpeg Encoders Documentation: libaom-av1 (the encoder that made the test files) (read 2026-10-09)
- Wikimedia Commons: Portrait of Neil Armstrong (NASA, public domain), one of the pictures used (read 2026-10-09)
Reviewed October 8, 2026. What the converter writes was measured with ffprobe on the same FFmpeg build your browser downloads; format descriptions follow MDN's media guides.