PNG to AVIF
Convert PNG images to AVIF without uploading them.
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Convert PNG to AVIF when you want a more compact modern image while retaining transparent pixels; when the PNG has them, the AVIF output can retain them. The quality setting controls both color and alpha encoding, so inspect fine edges and gradients before downloading. The original pixel dimensions remain unchanged.
Modern delivery for PNG assets
- Encode photographic PNGs or transparent graphics as AVIF with adjustable quality.
- Retain a PNG alpha channel instead of flattening it onto a solid background.
- Keep the original pixel dimensions while testing a potentially smaller web asset.
How it works
- Choose one PNG image.
- Set AVIF quality and inspect detailed areas and transparent edges.
- Convert and download the AVIF, then verify it in the destination app.
PNG compared with AVIF for web delivery
PNG preserves pixel values with lossless compression and is broadly supported, but large photographs and complex graphics can be heavy.
This AVIF output uses adjustable lossy compression for color and alpha. It may be much smaller, but older software may not decode it and size savings depend on the source.
Alpha quality and compatibility
The encoder applies the selected quality value to image data and the alpha channel. Transparent pixels can remain transparent, but very fine translucent edges deserve a visual check at lower settings.
No resizing occurs. AVIF support is now common in modern browsers, but a receiving editor, CMS or upload form may still require PNG.
Complementary image tools
PNG pixels are encoded on-device
The PNG is decoded and the AVIF is created inside your browser. Image content and transparent pixel data are not uploaded.
Frequently asked questions
Are my images uploaded?
No. PNG decoding and AVIF encoding run locally in your browser.
Will converting to AVIF change image quality?
Yes. This converter uses adjustable lossy AVIF encoding; higher quality usually retains more detail and creates a larger file.
Does PNG to AVIF keep transparency?
Yes. Transparent pixels can remain transparent through AVIF alpha encoding; check soft edges when using a low quality setting.
Is the AVIF output lossless?
No. This converter uses adjustable lossy AVIF encoding, even when the PNG source was lossless.
Will AVIF always be smaller than PNG?
No. It often helps with photographs or complex graphics, but file size depends on the source and selected quality.
What if the destination does not support AVIF?
Keep the PNG or use another supported format. Test the downloaded AVIF in the exact app, CMS or browser where it will be used.
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