Free PNG to AVIF Converter — Next-Gen Compression Instantly
Convert PNG images to AVIF instantly — shrink file sizes by up to 50% more than WebP and 80% more than PNG while preserving sharp visual quality. Perfect for web developers optimizing Core Web Vitals, Google PageSpeed scores, and Next.js or Nuxt image pipelines that support modern AVIF format. Supports transparency. 100% free, private, and runs entirely in your browser.
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PNG to AVIF Converter — Maximum Compression for Next-Gen Image Delivery
PNG files are lossless and therefore large — a screenshot or graphic saved as PNG carries every pixel value exactly, which is correct for editing but wasteful for serving to browsers. AVIF achieves compression ratios that make PNG look antiquated: a 500KB PNG graphic can become a 60-80KB AVIF with barely perceptible quality difference at typical screen viewing distances. For image-heavy web applications, this is one of the highest-leverage optimizations available.
AVIF also supports alpha transparency — the one feature that historically made PNG indispensable over JPG for web graphics. A PNG cutout of a product on a white background with transparent edges converts to AVIF and retains the transparency perfectly. The output is dramatically smaller while remaining compositable in any AVIF-supporting browser.
The main limitation is encoding speed. AVIF encoding is CPU-intensive — converting large batches of PNG files takes significantly longer than equivalent JPG or WebP conversion. For production pipelines converting thousands of images, plan for longer build times or use server-side encoding with parallelization. The file size savings justify the encoding cost for static assets that are generated once and served many times.