Website images
Use AVIF when modern browsers are your main audience and smaller transfers can improve page loading. Test your own images because results vary by content.
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PNG to AVIF Converter
Convert PNG to AVIF directly in your browser. AVIF can create smaller files in many cases, supports transparency, and keeps your images on your device.
Drop your PNG images here, or browse
Multiple files supported
Paste with Ctrl + V
🔒 100% on-device processing • Images never leave your computer
Convert one PNG or a batch locally. The AVIF encoder loads only after you add an image.
AVIF encoding can take longer than PNG export. Files are processed one at a time to keep the page responsive.
Smaller modern files?
Convert locally
Convert locally
PNG
AVIF
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Preview example:
image.png
(Choose one image from the list below to inspect the result)
Original (0 KB)
Converted AVIF (0 KB)
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AVIF File Size
Original PNG:
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Converted AVIF:
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Drag the center handle to inspect the result. AVIF uses a balanced quality setting. Actual size depends on image content.
How to Convert PNG to AVIF in 3 Steps
1. Upload PNG
Choose, drag, or paste one or more PNG files.
2. Convert to AVIF
The browser loads the encoder only when needed and converts files locally.
3. Download AVIF
Download one result or package completed files in a ZIP.
When AVIF Is the Right Choice
Transparent graphics
Logos, illustrations, and UI artwork can keep transparent and semi-transparent pixels while moving to a modern web format.
A considered tradeoff
AVIF can take longer to encode and older tools may not open it. Keep PNG when compatibility, lossless editing, or predictable results matter more.
AVIF vs PNG
| Consideration | PNG | AVIF |
|---|---|---|
| File size | Lossless; can already be efficient for some graphics | Often smaller, but not guaranteed |
| Transparency | Full alpha support | Full alpha support |
| Compatibility | Very broad | Strong in modern browsers; older software varies |
| Encoding | Fast export | Heavier and slower |
| Quality | Lossless | Lossy at the current default setting |
When to keep PNG
Keep PNG when you need pixel-exact output, the original is already very small, or the receiving software may not support AVIF.
When to use AVIF
Use AVIF when reducing web image payload is useful, modern browser compatibility is acceptable, and some lossy compression is okay.
In one local test, a 19.5 KB PNG became a 10.9 KB AVIF, about 44% smaller. This is one example, not a guarantee. Other images can show smaller gains, and some PNG files may produce a larger AVIF.
Does AVIF Keep Transparency?
Yes. AVIF supports an alpha channel, so transparent and semi-transparent areas in a PNG can remain transparent after conversion. This is useful for logos, icons, cut-out product images, and graphics with soft edges or shadows. If you later convert the AVIF to JPG, transparency will be lost because JPG does not support an alpha channel.
How Much Smaller Does It Get?
PNG to AVIF does not make every file smaller. File size depends on image content and encoding settings. Photographs often have more room for size reduction, while simple graphics, screenshots, and already-efficient PNGs may shrink only a little — or may even become larger.
Good to know
- All conversion happens on your device; images are not uploaded to our server.
- The AVIF encoder loads only after you add an image.
- Files are encoded one at a time to keep the page responsive.
- You can add up to 30 PNG files in one batch, and each file can be up to 50 MB.
- Multiple converted files can be downloaded together as a ZIP.
PNG to AVIF FAQ
Does AVIF support transparency?
Yes. This converter preserves transparent and semi-transparent PNG pixels.
Will AVIF reduce file size?
Often, but not always. It depends on the source image, its existing compression, and the encoder settings.
Will I lose image quality?
The default uses lossy encoding at a balanced quality setting, so inspect detailed images before replacing the original.
Are files uploaded?
No. Conversion runs locally in your browser.
Can I convert multiple files?
Yes. Files are encoded one at a time to avoid overwhelming the browser.
Why can AVIF take longer?
AVIF compression is more computationally intensive than PNG export.
Is AVIF better than PNG?
Neither format is always better. PNG is lossless and broadly compatible, while AVIF can reduce file size in many cases but uses heavier encoding and may not be supported by older software.
Will the AVIF look different from the PNG?
Slightly, depending on the image. This converter uses lossy AVIF encoding, so very fine detail can change. Transparency remains supported.
Can I get pixel-exact output?
Not with lossy AVIF encoding. If exact pixel reproduction matters more than file size, keep the PNG.