AVIF is the next-generation image format that offers 50–70% smaller files than PNG at equivalent visual quality, while preserving transparency. It's the best choice for modern web delivery. Drop your PNG files here and get highly compressed AVIF images in seconds — converted entirely in your browser with no upload.
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Up to 50.0 MB per file
Upload your PNG images
Drop PNG files onto the converter. Transparent PNGs are fully supported — AVIF preserves the alpha channel in the output.
Set your quality level
AVIF is so efficient that 70% quality (our default) looks nearly identical to lossless PNG at a fraction of the size. Use 80–90% for critical images; go lower (50–65%) for aggressive compression where slight artefacts are acceptable.
Click Convert
The browser encodes each PNG as AVIF using the AV1 codec via WebAssembly. AVIF encoding is slow by design — allow 5–20 seconds per image depending on resolution and your device's CPU.
Use AVIF for web delivery
AVIF files can be served directly in Chrome, Firefox, Safari, and Edge. For older browser support, use the <picture> element with PNG or WebP as fallbacks.