PNG to AVIF Converter
Convert PNG images to next-gen AVIF with transparency kept and far smaller files — free, batch-ready, in your browser.
Output Format
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HEIC · JPEG · PNG · WebP · AVIF — or paste from clipboard
Pick an output format above to convert
How it works
Drop your PNG files
Select or drag in one or many .png images.
Set quality & convert
Pick a quality level; each PNG is re-encoded as AVIF in your browser.
Download AVIF
Save a single AVIF or grab the whole batch as a ZIP.
Common use cases
Shrinking large PNG web graphics
Illustrations and UI graphics exported as PNG are often huge. AVIF keeps the transparency and sharpness at a fraction of the size.
Speeding up transparent images
When you need transparency but PNG is too heavy, AVIF delivers both — smaller files that still layer over any background.
Optimising an icon or asset set
Batch-convert a set of PNG assets to AVIF in one pass to cut total page weight for modern browsers.
Frequently asked questions
Why convert PNG to AVIF?
PNG files are lossless and large. AVIF can be a fraction of the size while keeping transparency, making it ideal for web graphics, icons, and illustrations.
Does AVIF keep PNG transparency?
Yes. AVIF supports an alpha channel, so transparent areas in your PNG are preserved in the AVIF output.
Does this work in every browser?
Yes. AVIF encoding runs through a built-in WASM encoder, so it works in Chrome, Edge, Firefox, and Safari alike. The encoder downloads only the first time you convert to AVIF, and encoding can take a moment on large images.
Is my PNG uploaded anywhere?
No. The PNG is encoded to AVIF entirely in your browser. Your files never leave your device.