Convert PNG to AVIF Online
Convert PNG images to AVIF with transparency preserved. Up to 80–90% smaller. Free, in your browser.
.webp, .png, .jpg · up to 50 MB
Use cases
PNG to AVIF: transparency preserved, up to 90% smaller
Transparency preserved
PNG alpha channel is fully retained in AVIF. Transparent logos and icons ready for the web.
80–90% smaller
Photographic PNG images can shrink 80–90% when converted to AVIF. Massive bandwidth savings.
100% private
Your image is converted in your browser. Never uploaded to any server.
Ideal for e-commerce
Transparent-background product images in AVIF: maximum web compatibility and minimum file weight.
How it works
Three steps, no hassle
Upload your PNG image
Drag or select your .png file. Up to 50 MB, no signup. Works with PNG with and without transparency (alpha channel).
AVIF conversion in your browser
Your image converts to AVIF format directly on your device. The alpha channel is preserved in the resulting AVIF if the original PNG has transparency.
Download your AVIF
Compare size before and after. Large PNGs can shrink by 80–90% when converted to AVIF with no perceptible visual loss.
FAQ
Got questions?
Yes. AVIF supports an alpha channel with up to 12 bits of depth per channel, surpassing PNG's 8-bit capability. When converting a transparent PNG to AVIF, the alpha channel is fully preserved: transparent pixels in the original PNG remain transparent in the resulting AVIF. This makes AVIF the ideal replacement for PNG for web images with transparency: logos, icons, UI elements, product images on transparent backgrounds, and any graphic asset that needs to be overlaid on different backgrounds.
The reduction depends on image content. For photographs or images with many colors and gradients saved as PNG (a lossless format), the reduction when converting to AVIF can be 80–90%. For illustrations with flat color areas or simple icons, the reduction is usually smaller, between 50–70%. In any case, AVIF with lossy compression is significantly more efficient than lossless PNG for any type of visual content.
AVIF can be used in both lossless and lossy mode. By default, conversion uses lossy compression, which introduces minimal quality loss but enables the largest size reductions. For most web images (logos, icons, product images), the visual difference between an original PNG and AVIF at 80% quality is imperceptible to the naked eye. If you need to preserve every exact pixel (screenshots, scanned documents, images with readable text), lossless PNG remains the most appropriate option.
Yes, in most cases. AVIF produces files approximately 20% smaller than WebP at equivalent visual quality, and both formats support alpha channels. AVIF also supports greater bit depth (10 and 12 bits per channel vs. WebP's 8 bits) and HDR. Browser support for AVIF is now comparable to WebP for modern users: Chrome 85+, Firefox 93+, Safari 16+. For new web projects, AVIF is the recommended choice over WebP when size reduction is a priority.
Chrome 85 (August 2020), Firefox 93 (October 2021), Safari 16 (September 2022), Edge 121, and Opera. Globally, over 93% of internet users use AVIF-compatible browsers. For the remaining users, the standard HTML solution is the picture element with a fallback to WebP or the original PNG.
E-commerce product images with transparent backgrounds (to display on different background colors across devices) are frequently saved as PNG, which produces large files. Converting these images to AVIF reduces their weight by 80–90%, significantly speeding up product page loads. Since LCP (Largest Contentful Paint) — one of Google's Core Web Vitals — measures the load time of the largest visual content, which on product pages is usually the product image itself, the improvement in LCP has a direct impact on organic search rankings.
Convert PNG to AVIF: transparency preserved and up to 90% smaller
The PNG (Portable Network Graphics) format was developed in 1996 as a patent-free alternative to GIF, with alpha channel (transparency) support and lossless compression as its main features. For decades, PNG has been the standard format for web graphics with transparency: logos, icons, UI elements, product images on transparent backgrounds, and illustrated content. PNG's lossless compression guarantees exact pixel reproduction but produces significantly larger files than lossy formats like JPG. A photographic image saved as PNG can be 5–10 times larger than the same image in high-quality JPG. AVIF (AV1 Image File Format), published by the Alliance for Open Media in February 2019, resolves this trade-off: it supports an alpha channel (transparency) like PNG, but uses the advanced AV1 compression codec developed by the AOMedia consortium (founded in September 2015 by Amazon, Apple, Google, Microsoft, Mozilla, Netflix, and others) enabling size reductions of 80–90% compared to equivalent PNG with no perceptible visual loss.
The combination of transparency support and efficient compression makes AVIF the natural successor to PNG for web graphic assets. The most relevant use cases include: e-commerce product images with transparent backgrounds (to adapt to different background colors depending on device or site section), company and brand logos in web-ready formats, UI icons for progressive web applications (PWAs), icon sprites, interface decorative elements, and any asset that needs to be overlaid on variable-color backgrounds. In all these cases, PNG file sizes can be disproportionately large: a high-resolution PNG logo might weigh 500 KB, while the equivalent AVIF with the same transparency and comparable visual quality might weigh 50–80 KB. This reduction has a direct impact on load times, CDN bandwidth consumption, and Google Core Web Vitals. AVIF adoption by major browsers is essentially complete: Chrome 85+ (August 2020), Firefox 93+ (October 2021), Safari 16+ (September 2022), covering over 93% of global users according to Can I Use.
For web development and performance optimization teams, migrating from PNG to AVIF is one of the highest-return interventions for improving Core Web Vitals. Google's LCP (Largest Contentful Paint) metric, included as a ranking signal in May 2021, measures the time until the largest visual element on screen finishes rendering. On e-commerce product pages, this element is typically the main product image, frequently saved as PNG to support transparent backgrounds. Reducing this image's weight from 500 KB in PNG to 50 KB in AVIF reduces download time by 90% under equivalent bandwidth conditions, with a proportional impact on LCP. In e-commerce catalogs with thousands of products, the cumulative savings in CDN storage and data transfer are economically significant. Platforms like Shopify began automatically serving images in AVIF in 2023, and WordPress added native support in version 6.5 (March 2024), reflecting the industry consensus that AVIF is the reference web image format for the next decade. Convertir.ai lets you validate PNG-to-AVIF conversion and verify alpha channel preservation directly in the browser, with no software dependencies and no privacy risk.