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Convert PNG to AVIF

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PNG stores every pixel using lossless compression — ideal for screenshots and diagrams, but photo-heavy PNGs can be enormous. AVIF applies compression derived from the AV1 video codec, producing files typically 50% smaller than JPEG and 20–30% smaller than WebP at equivalent visual quality. Transparency is fully preserved — AVIF supports the same full alpha channel as PNG. AVIF encoding is more CPU-intensive than JPEG or WebP — your browser runs the encoder in WebAssembly, so expect a few extra seconds per image. The output requires Chrome 85+, Firefox 93+, or Safari 16+ to display.

When you’d want this conversion

  • Serving images on a modern website at maximum compression efficiency
  • Reducing large PNG photo files to a fraction of their size for web delivery
  • Keeping transparency while achieving the smallest possible web-ready file
  • Building a next-generation image pipeline for audiences on modern browsers

What to watch for

The lossy encoding is permanent — once converted, the discarded detail cannot be recovered. Keep the original PNG as your master file if you may need to edit it again.
AVIF requires a modern browser to display: Chrome 85+, Firefox 93+, or Safari 16+. For images shared by email or opened in desktop apps, use WebP or JPEG instead.
Encoding takes several seconds — the browser runs the AV1 encoder in WebAssembly. Larger images take proportionally longer.
From.png

PNG

Portable Network Graphics

  • Lossless compression
  • Supports transparency
  • Best for: screenshots, logos, graphics with transparency, diagrams
To.avif

AVIF

AV1 Image File Format

  • Lossy compression
  • Supports transparency
  • Best for: high-efficiency web images, HDR photography, modern web delivery

More PNG Conversions

Convert PNG to JPEG Convert PNG to WebP

Convert Other Formats to AVIF

Convert JPEG to AVIF Convert WebP to AVIF Convert GIF to AVIF Convert BMP to AVIF Convert HEIC to AVIF Convert SVG to AVIF

Related Tools

Convert AVIF to PNG Compress PNG Image Converter

Related Guide

PNG vs JPG vs WebP vs AVIF

How to Use

  1. 1

    Drop your PNG file or click to browse — the output format is already set to AVIF.

  2. 2

    Adjust the quality slider. 75–80% is a good starting point; lower values produce smaller files with more visible compression.

  3. 3

    Click "Convert to AVIF" — conversion runs entirely in your browser. Expect a few extra seconds — AVIF encoding runs in WebAssembly.

  4. 4

    Download the AVIF.

Frequently Asked Questions

How much smaller will the AVIF be compared to the PNG?

Typically 40–60% smaller at equivalent visual quality. Exact savings depend on image content; natural scenes compress more than high-frequency graphic detail.

Why does AVIF encoding take longer than other formats?

AVIF is derived from the AV1 video codec, which uses far more computationally intensive compression algorithms than JPEG or WebP. Your browser runs the AV1 encoder in WebAssembly — it stays private and local, but it is CPU-heavy. Larger images or higher quality settings take proportionally longer.

Is AVIF supported in all browsers?

AVIF is supported in Chrome 85+ (2020), Firefox 93+ (2021), and Safari 16+ (2022). As of 2025, this covers over 95% of browsers globally. For older browsers or non-browser software, use a WebP or JPEG fallback via the HTML <picture> element.

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