PNG to AVIF Converter
Convert PNG images to AVIF online for free.
Keep transparency while exploring AVIF compression for graphics, screenshots, logos and other image types.
Convert PNG to AVIF Online
PNG is a lossless image format commonly used for graphics, screenshots, logos and images that require transparency. When converting PNG to AVIF, you can choose between two approaches: lossless AVIF, which preserves the original pixel data exactly, or lossy AVIF, which can produce smaller files at the cost of some visual information.
The resulting file size and quality depend on the image content, the chosen compression mode and the encoding settings. AVIF Tools lets you perform this conversion directly without installing desktop software and with no account required.
Why Convert PNG to AVIF?
Reduce File Size for Web Images
PNG can produce relatively large files, especially for complex images. AVIF may produce smaller files depending on the image content and whether lossy or lossless encoding is used. Results vary significantly by image type.
Keep Transparency
PNG is widely used for its alpha transparency support. AVIF also supports alpha transparency, so PNG images with an alpha channel can be converted to AVIF while retaining transparency. This makes AVIF suitable for logos, icons and interface assets.
Graphics, Screenshots and UI Assets
PNG is a natural choice for screenshots, diagrams, icons and graphics with sharp edges or text. AVIF can be an alternative for these assets when file size matters. For content where exact pixel fidelity is important, lossless AVIF is worth evaluating alongside lossy encoding.
PNG vs AVIF
The most important practical difference between PNG and AVIF is that PNG only supports lossless compression, while AVIF supports both lossless and lossy modes.
| Feature | PNG | AVIF |
|---|---|---|
| Lossless compression | Yes | Yes |
| Lossy compression | No | Yes |
| Alpha transparency | Yes | Yes |
| Animation | No (APNG is a separate variant) | Yes |
| Browser support | Widely supported | Widely supported in modern browsers |
| File size | Can be large for complex images | Can be smaller depending on image and encoding settings |
For a full technical overview of AVIF, see the AVIF format guide.
Lossless vs Lossy AVIF for PNG
When converting a PNG to AVIF, the choice between lossless and lossy encoding is relevant because PNG is itself a lossless format.
Lossless AVIF
Lossless AVIF preserves the original pixel data exactly, producing a result visually identical to the source. This can be appropriate for logos, UI assets, diagrams and screenshots where exact pixel fidelity matters. Note that lossless AVIF is not always smaller than PNG.
Lossy AVIF
Lossy AVIF can produce significantly smaller files than lossless encoding, but introduces some visual loss. This can be suitable for illustrations, web graphics and assets where small visual differences are acceptable.
When Should You Convert PNG to AVIF?
When You Need Smaller Web Assets
If your PNG files are larger than necessary for web delivery, converting to AVIF with lossy encoding may reduce file size. Test the result visually before deploying.
When You Need Transparency
If you are already using PNG for alpha transparency, AVIF is a suitable alternative that also supports transparency, while offering a different file size trade-off depending on encoding settings.
When You Need Lossy Compression
PNG does not offer lossy compression. If you want to explore a more significant reduction in file size and can accept some visual loss, lossy AVIF provides a compression option that PNG cannot.
When You Need Exact Visual Fidelity
If preserving the exact original image is important, lossless AVIF is an option worth evaluating. Keep in mind that lossless AVIF is not always smaller than PNG, so testing with your specific image is worthwhile.
How to Convert PNG to AVIF
Upload your PNG image
Drag and drop one or more PNG files into the converter at the top of this page, or click to browse your files.
Convert to AVIF
AVIF Tools processes your PNG on our servers and creates an AVIF version. Your original PNG file is deleted immediately after conversion.
Download your AVIF file
Download the converted AVIF file when processing is complete. Converted files are available for 1 hour, then automatically deleted.
See Real AVIF Compression Results
AVIF Tools provides real sample files generated by the same conversion system used on this page. The sample collection includes PNG to AVIF results for logos, illustrations and graphics with transparency, with measured original and converted file sizes.
Private PNG to AVIF Conversion
Your original PNG files are deleted immediately after conversion. Converted AVIF files are available for download for 1 hour, then permanently removed. No account required and your files are never shared.
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Your photos are protected. Files auto-deleted after 1 hour.
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PNG to AVIF FAQ
What is PNG to AVIF conversion?
PNG to AVIF conversion takes an existing PNG image and produces an AVIF version. Depending on the encoding settings, the result can use lossless compression (preserving the original pixel data exactly) or lossy compression (reducing file size at the cost of some visual information).
Is AVIF smaller than PNG?
AVIF can produce smaller files than PNG for many images, but the result depends on image content and encoding settings. Lossless AVIF is not always smaller than PNG. The most reliable way to know is to convert your specific image and compare.
Does AVIF support transparency?
Yes. AVIF supports alpha transparency. PNG images with an alpha channel can be converted to AVIF while retaining transparency.
Is AVIF lossless?
AVIF supports both lossless and lossy compression, which gives it more flexibility than PNG. Lossless AVIF preserves the original pixel data exactly; lossy AVIF produces smaller files at the cost of some visual information.
Is PNG better than AVIF for screenshots?
PNG is a natural choice when exact lossless fidelity is important, such as for screenshots with text or sharp edges. AVIF can also be used for screenshots and may provide smaller files when lossy compression is acceptable. Lossless AVIF is another option worth evaluating.
Does PNG to AVIF conversion preserve metadata?
PNG files can contain metadata, but metadata handling can vary by file and format. For photographic EXIF metadata, see the documentation for the relevant source format such as JPG or HEIC.
Can I convert multiple PNG files to AVIF?
Yes. AVIF Tools supports batch conversion. You can drag and drop multiple PNG files at once and convert them all in a single session.
Are my PNG files stored permanently?
No. Original PNG files are deleted immediately after conversion. Converted AVIF files are kept temporarily and automatically deleted after 1 hour. See our Privacy Policy for full details.