ImageToolKit

PNG to AVIF Converter — Convert PNG to AVIF Online Free [2026]

Upload PNG images → download highly compressed AVIF files with adjustable quality. See compression ratio and file size savings. Free browser-based converter — no signup required.

Drop a PNG image here or click to browse

Requires Chrome 113+ or Firefox 113+ for AVIF encoding

What is PNG to AVIF Converter?

PNG to AVIF Converter is a free online tool that converts PNG images to the modern AVIF format. AVIF provides dramatically better compression than PNG — often 80-90% smaller file sizes — while maintaining excellent visual quality. This makes AVIF ideal for web images where loading speed matters.

How to Use PNG to AVIF Converter

Upload a PNG image by dragging it into the drop area or clicking to browse. Use the quality slider to control AVIF compression (lower quality means smaller files). The tool displays the original PNG size, converted AVIF size, and compression ratio. Click "Convert to AVIF & Download" to save. Note: AVIF encoding support varies by browser — Chrome and Firefox work best.

How PNG to AVIF Converter Works

The tool loads your PNG image onto an HTML5 Canvas element. It then uses the canvas toBlob() method with the "image/avif" MIME type to encode the image in AVIF format at your chosen quality level. The browser's built-in AVIF encoder handles the compression. File sizes are compared to show you the compression savings. Note: AVIF encoding is supported in Chrome 113+ and Firefox 113+ — the tool checks for support and shows a message if your browser cannot encode AVIF.

Common Use Cases

  • Compress PNG images to much smaller AVIF files for faster web loading
  • Convert website assets from PNG to AVIF for better Core Web Vitals
  • Reduce image storage costs by converting PNG archives to AVIF
  • Prepare next-generation image formats for modern web applications
  • Create AVIF versions of PNG graphics for progressive image loading

Frequently Asked Questions

How much smaller are AVIF files compared to PNG?▼

AVIF files are typically 80-95% smaller than PNG files for photographic images. For graphics with flat colors, the savings may be 50-80%. The exact ratio depends on image content and quality settings.

Which browsers can encode AVIF?▼

Chrome 113+ and Firefox 113+ support AVIF encoding via the Canvas API. Safari does not yet support AVIF encoding. The tool automatically detects support and shows a message if your browser cannot encode AVIF.

Is AVIF widely supported for viewing?▼

AVIF viewing is supported in Chrome, Firefox, Opera, and Safari 16.4+. For maximum compatibility, consider serving AVIF with a JPEG or WebP fallback using the HTML picture element.

Does the conversion lose quality?▼

AVIF is a lossy format by default (though it supports lossless mode). At quality 60-80, AVIF produces visually identical results to the original PNG while being much smaller. Use the quality slider to find your preferred balance.

Related Tools

AVIF to JPG Converter

Upload AVIF images → download universally compatible JPG files with adjustable q...

PNG to JPG Converter

Upload a PNG → download a smaller JPG in one click. Set quality level and choose...

JPG to PNG Converter

Upload a JPG → get a lossless PNG with perfect pixel quality. Ideal for logos, g...

Image Compressor

Drop an image → get a smaller file with no visible quality loss. Adjustable qual...