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PNG to AVIF Converter

PNG to AVIF Converter

🖼️ PNG to AVIF Converter

Transform your PNG images to AVIF format with superior compression and quality

📁
Click here or drag & drop PNG images
Support for single or multiple images • Max 10MB per file
Higher quality = Better image • Lower quality = Smaller file size

PNG to AVIF Converter Online

Ever wondered how to make your PNG images load faster on websites — without sacrificing image quality? Our free online PNG to AVIF converter does exactly that. AVIF (AV1 Image File Format) is the next-generation image format that delivers up to 50% smaller file sizes compared to PNG, with no visible quality loss. Whether you’re a web developer, blogger, designer, or just someone who wants faster-loading images, this tool gets it done in seconds.

No downloads. No signup. No ads. Just upload your PNG and download the AVIF.

PNG to AVIF Converter Online

How to Use This PNG to AVIF Converter

Using this tool is simple. Here’s how it works:

Step 1 – Upload Your PNG File Click the upload area or drag and drop your PNG image directly into the converter. You can upload a single file or multiple PNG files at once. Maximum file size is 10MB per file.

Step 2 – Adjust AVIF Quality (Optional) Use the quality slider to control the output. The default is set to 80% — a perfect balance between file size and visual sharpness. Slide lower for smaller files, higher for better clarity.

Step 3 – Click “Convert Images” Hit the Convert button. Your PNG images are processed entirely in your browser and converted to AVIF format in seconds.

What you’ll get:

  • Your PNG converted to AVIF with dramatically reduced file size
  • A live preview of each converted image
  • File size comparison (before and after)
  • Option to download individual files or all files as a ZIP
  • Complete privacy — your images never leave your device
What Makes This PNG to AVIF Converter Different

What Makes This PNG to AVIF Converter Different?

Most image converters rely on server-side processing, which means your images are uploaded to a third-party server — raising privacy concerns and causing slow speeds. Ours is completely different.

100% Browser-Based Processing Your PNG files are converted directly inside your browser using WebAssembly technology. No server upload. No waiting. No data privacy risk. Your images never leave your device.

Batch Conversion Support Don’t convert one by one. Upload multiple PNG files at once and convert them all in a single click. Download them individually or as a single ZIP file — perfect for web developers optimizing entire image libraries.

Quality Control Slider Unlike simple converters, you control the output quality. Whether you need pixel-perfect quality for a portfolio or maximum compression for a blog, the slider puts you in charge.

Instant File Size Comparison See exactly how much space you’re saving after conversion. We display both the original PNG size and the resulting AVIF size side-by-side so you know exactly what you’re getting.

Works on All Devices Whether you’re on a Windows laptop, Mac, Android phone, or iPhone, the tool runs smoothly on all modern browsers — no app installation required.

Who Uses a PNG to AVIF Converter?

An online PNG to AVIF converter is useful for a surprisingly wide range of people:

Web Developers and Frontend Engineers Google Core Web Vitals now heavily penalize slow-loading images. Switching from PNG to AVIF directly improves LCP (Largest Contentful Paint) scores. Many developers use AVIF as their default format for all static images on modern websites.

Bloggers and Content Creators Slow image loading kills readership and SEO rankings. Converting your PNG blog images to AVIF before uploading to WordPress, Ghost, or any CMS significantly reduces page load time — which Google rewards with better rankings.

eCommerce Store Owners Product images in AVIF format load faster on Shopify, WooCommerce, and Magento stores. Faster product pages = lower bounce rate = more conversions. A single product page with 10 images can save hundreds of kilobytes just by switching to AVIF.

Graphic Designers Need to share design assets with clients without sending massive PNG files? Convert to AVIF for easy sharing while preserving near-lossless image quality.

Digital Marketers Page speed is a confirmed Google ranking factor. Converting image assets from PNG to AVIF is one of the fastest, easiest wins for improving Core Web Vitals scores without changing code.

Social Media Managers AVIF images load faster on platforms that support it, and lighter files mean faster uploads and previews during content scheduling.

Who Uses a PNG to AVIF Converter

PNG to AVIF — Format Comparison by Use Case

IF YOU ARE OPTIMIZING IMAGES FOR YOUR WEBSITE OR APPLICATION, CHOOSING THE RIGHT FORMAT IS CRITICAL. ONE WRONG FORMAT CAN CAUSE YOUR PAGE TO LOAD SLOWLY AND HURT YOUR GOOGLE RANKINGS. HERE IS HOW TO USE THIS TOOL FOR EACH MAJOR USE CASE:

Platform / Use CaseRecommended QualityHow to Use This Tool
WordPress Blog Images75–80%Upload PNG, set slider to 80%, download AVIF, upload to WordPress Media Library
Shopify Product Images80–85%Batch upload all product PNGs, convert at 82%, download ZIP and re-upload to store
Google PageSpeed / LCP80%Convert hero and above-the-fold PNGs to AVIF — these impact LCP score the most
Logo / Icon (Transparent)90–100%Upload transparent PNG logo, keep quality at 90%+, verify transparency is intact
Portfolio / Design Assets90–95%High detail images need higher quality — use 90% to preserve fine gradients
Social Media Thumbnails70–75%Lower quality is fine for thumbnails — prioritize fast load over pixel perfection
Email Header Images75%Note: most email clients do not support AVIF — use WebP or JPEG for email

 

How Does PNG to AVIF Conversion Work? — The Method Explained

Conversion sounds simple on the surface, but there are a few important technical details that affect the quality and compatibility of your output.

Lossy vs Lossless Compression

AVIF supports both lossy and lossless compression modes. At quality settings below 100%, the tool uses lossy compression — meaning some image data is discarded to achieve smaller file sizes. At 100% quality, the output is near-lossless. For most web use cases, 80% quality produces results that are visually indistinguishable from the original PNG.

Alpha Channel (Transparency) Handling

PNG is widely used because it supports transparency. AVIF also supports full alpha channel transparency natively. When you convert a transparent PNG to AVIF using this tool, the transparent areas are preserved exactly — no white background is added, no transparency is lost.

Browser-Side WebAssembly Encoding

This tool uses a WebAssembly-compiled version of the libavif encoding library — the same library used by major browsers and CDNs to generate AVIF images at scale. Running it in the browser means zero server dependency, zero latency from network upload, and zero privacy risk.

Between Quality Levels

You can also find the sweet spot for your specific images — upload the same PNG multiple times at different quality settings (e.g., 70%, 80%, 90%) and compare the resulting file sizes to find the best compression-to-quality ratio for your specific use case.

Frequently asked questions

Everything you need to know about our free online PNG to AVIF converter.

Upload your PNG file by clicking the upload area or dragging and dropping it directly. Adjust the quality slider if needed, then click Convert. Your AVIF file is ready to download instantly — no software installation or account required.
Yes, 100% free. No account required, no hidden charges, and no usage limits. Convert as many PNG images as you need on any device, as many times as you want.
AVIF (AV1 Image File Format) is a next-generation image format that delivers up to 50% smaller file sizes than PNG at the same visual quality. It also supports transparency, HDR, and wide color gamut — making it ideal for faster-loading websites and better Core Web Vitals scores.
Not visibly. At 80% quality (the default setting), AVIF produces images that look identical to the original PNG to the human eye while being significantly smaller. Set quality to 100 if you need lossless output with zero compression applied.
Yes. Upload multiple PNG files at once using drag and drop or the file picker. All images convert together and you can download them individually or as a ZIP file in one click — no extra steps needed.
Typically 50–70% smaller than the original PNG. For example, a 1MB PNG photo often converts to an AVIF file under 300KB — with no noticeable quality loss. Smaller files mean faster page loads, lower bandwidth costs, and better Google PageSpeed scores.
Yes. AVIF fully supports alpha channel transparency, just like PNG. Your logos, icons, and graphics with transparent backgrounds convert cleanly to AVIF without any loss of the transparent areas — at a much smaller file size.
AVIF is supported by Chrome, Firefox, Edge, Opera, and Safari (iOS 16 and macOS Ventura and above). It covers over 93% of global browser users as of 2025. For older browsers, use a PNG fallback inside an HTML <picture> element.
AVIF offers better compression than WebP — typically 20–30% smaller files at equivalent quality — and supports a wider color gamut and HDR. WebP has slightly broader browser support. For modern audiences, AVIF with a WebP or PNG fallback is the recommended approach.
No. All conversion happens entirely inside your browser. We do not upload, store, or transmit your images to any server. Your files never leave your device — this tool is fully client-side and completely private.
Yes. WordPress supports AVIF uploads from version 6.5 onwards. Shopify and most modern platforms also serve AVIF natively. Switching your PNG images to AVIF can directly improve your Google PageSpeed score and Largest Contentful Paint (LCP) time.
The quality slider controls the compression level — higher quality means a better-looking image with a larger file size, lower quality means a smaller file with slightly more compression. For most web use, 75–85% gives the best balance of size and sharpness.
Yes. AVIF works well for all types of PNG files — photographs, logos, UI screenshots, infographics, and flat-color graphics. Icons and graphics with sharp edges and transparency convert cleanly without any artifacts at medium-to-high quality settings.
After conversion, a Download button appears next to each image. Click it to save the AVIF file directly to your device. For multiple files, use the Download All as ZIP button to get everything in one compressed archive.
Each PNG file can be up to 10MB. You can upload and convert multiple files at once within that per-file limit. High-resolution images close to the limit may take a few extra seconds to process depending on your device speed.
Yes, significantly. Smaller AVIF files load faster, which improves Core Web Vitals metrics like LCP and FID. Google uses page speed as a ranking signal, so switching from PNG to AVIF can contribute to better search rankings and lower bounce rates.
AVIF and HEIC are both modern container formats but use different codecs. HEIC uses the HEVC codec and is common on Apple devices. AVIF uses the open-source AV1 codec, is royalty-free, and has better browser support for web use. For websites, AVIF is the preferred choice.
First check if your browser supports AVIF — update to the latest version of Chrome, Firefox, or Edge. If you are embedding the image in a webpage for all visitors, use a <picture> element with a PNG fallback so older browsers still display the image correctly.
Yes. The converter is fully responsive and works on all devices — Android, iPhone, tablets, and desktops. It runs on all modern browsers without any app installation required.
Absolutely. AVIF is one of the most effective tools for improving Largest Contentful Paint (LCP) scores. Replacing heavy PNG hero images and product photos with AVIF equivalents often reduces image payload by 50% or more, directly improving both page speed and Google Search performance.
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