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.
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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.
AVIF typically achieves 20–30% better compression than WebP at equivalent quality. For a web icon or UI element, AVIF might be 40 KB vs WebP's 60 KB vs PNG's 150 KB. The trade-off is encoding speed: AVIF takes 10–20× longer to encode than WebP. Use AVIF for frequently served images where the one-time encoding cost is worth the ongoing bandwidth savings.
Yes. AVIF has full alpha channel support. Transparent areas in your PNG — including semi-transparent edges from anti-aliasing — are preserved with high fidelity in the AVIF output.
The AV1 codec uses sophisticated compression algorithms that are computationally intensive. Encoding a 2000×2000 PNG to AVIF can take 15–30 seconds in a browser (versus under 1 second for WebP). This is inherent to the codec — dedicated hardware encoders are much faster but aren't available in browsers yet.
Chrome 85+ (released 2020), Firefox 93+ (2021), Safari 16.4+ (2023), and Edge 121+ (2024) support AVIF. As of 2024, AVIF has roughly 90% global browser support. Use the <picture> element with a WebP or PNG fallback for the remaining 10%.
AVIF excels with photographic content and natural images. For images with very sharp edges, thin lines, or text, it can introduce subtle blurring artefacts — increase quality to 85%+ in those cases. For pure vector or pixel-art content, consider SVG or PNG instead.
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