imglio-logo
Imglio

PNG to AVIF Converter

Convert image instantly. No upload, 100% private, runs in your browser.

Image Converter Guide

Convert your images to any format quickly and easily without losing quality.

AVIF is the next-generation image format that delivers the smallest file sizes on the web, often 50% smaller than PNG at the same quality. If you're serious about web performance, converting PNG to AVIF is one of the highest-impact optimizations you can make. Imglio handles the conversion entirely in your browser. No upload, no server, no privacy risk.

Why Imglio? AVIF encoding is computationally intensive, which is exactly why most converters process it on their servers. Imglio uses WebAssembly-powered encoding to run AVIF conversion directly in your browser, keeping your files private and eliminating upload wait time entirely.

How to Use

  1. Upload your PNG or drag it into the tool
  2. Adjust the AVIF quality slider if needed
  3. Preview the converted file and check the size reduction
  4. Download your AVIF image

Features

  • Converts PNG to AVIF locally. Your image never leaves your browser
  • Up to 50% smaller files than PNG, often more
  • Preserves transparency (AVIF supports alpha channel)
  • Adjustable quality setting for fine-grained control
  • Free with no account, signup, or watermark
  • Works on all modern browsers

Use Cases

  • Convert images to different formats (JPG, PNG, WebP, and Avif.)
  • Ensure compatibility across devices and platforms
  • Prepare images for web, apps, or social media
  • Reduce file size by switching to more efficient formats

Frequently Asked Questions

AVIF (AV1 Image File Format) is a modern format based on the AV1 video codec. It offers the best compression of any mainstream image format, often 50% smaller than PNG and 30% smaller than WebP at equivalent quality. It's ideal for web images where performance matters.
Yes. AVIF supports full alpha channel transparency, so transparent areas in your PNG are preserved when converting to AVIF.
AVIF is supported by Chrome, Firefox, Edge, and Safari (since version 16). If you need compatibility with older environments, WebP or PNG may be safer choices.

Get the smallest web-ready image possible. Convert your PNG to AVIF. Free, instant, and completely private.