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Convert PNG to AVIF Online Free

AVIF delivers the best compression of any image format, reducing PNG file sizes by up to 95% while preserving transparency and visual quality.

For True AVIF Conversion, Use Our Dedicated Tool

Our dedicated AVIF converter uses advanced encoding for true AVIF output with maximum compression. It handles PNG, JPG, WebP, and more.

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Below: Convert PNG to WebP as a next-gen alternative. WebP offers 50-80% size reduction with 97% browser support.
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80%

Why Convert PNG to AVIF?

AVIF (AV1 Image File Format) represents the cutting edge of image compression technology. Based on the AV1 video codec developed by the Alliance for Open Media, AVIF achieves compression ratios that were previously impossible. A PNG file can be reduced by 80-95% when converted to AVIF, with quality that often surpasses both JPEG and WebP at the same file size. AVIF supports full alpha transparency, wide color gamut (HDR), and both lossy and lossless compression. For websites and applications where every kilobyte matters, AVIF provides the smallest possible files while maintaining exceptional visual quality. Major platforms including Netflix, Google, and Facebook already use AVIF for image delivery.

PNG vs AVIF Comparison

PNG uses lossless DEFLATE compression with universal support across all software. AVIF uses AV1-based compression with dramatically better ratios, achieving files 80-95% smaller for lossy and 20-30% smaller even in lossless mode. Both formats support full alpha transparency and wide color spaces. PNG has 100% software compatibility while AVIF currently has about 93% browser support and growing software adoption. PNG is ideal for lossless archival and editing workflows. AVIF is ideal for web delivery where performance is critical. For the best of both worlds, many developers serve AVIF as primary format with WebP or PNG fallbacks using the HTML picture element.

Frequently Asked Questions

How much smaller is AVIF compared to PNG?▶
AVIF can reduce PNG file sizes by 80-95%. A 5 MB PNG might become just 250-500 KB as AVIF at comparable visual quality. AVIF uses the AV1 video codec for compression, which is significantly more efficient than PNG's DEFLATE compression.
Does AVIF support transparency like PNG?▶
Yes, AVIF fully supports alpha channel transparency with smooth gradients, just like PNG. Combined with its superior compression, AVIF is becoming the ideal replacement for PNG on the web, offering the same transparency at a fraction of the file size.
What browser support does AVIF have?▶
AVIF is supported by Chrome, Firefox, Safari 16+, and Edge. Browser support is growing rapidly and currently covers about 93% of users globally. For the remaining browsers, serving WebP or JPEG as a fallback is recommended.
Should I use AVIF or WebP for my website?▶
AVIF offers 20-30% better compression than WebP and handles gradients, fine details, and low-contrast areas better. However, WebP has slightly wider browser support (97% vs 93%). The ideal approach is to serve AVIF as primary with WebP fallback using the HTML picture element.
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