Convert PNG to AVIF for Smaller, Modern Web Images
Turn a PNG image into AVIF — a next-generation format that delivers noticeably smaller file sizes than PNG or JPG at comparable quality, with support for transparency and wide browser compatibility.
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Why Convert PNG to AVIF?
AVIF, built on the AV1 video codec, typically compresses images significantly smaller than PNG's lossless format or even standard JPG, while still supporting transparency the way PNG does — a meaningful win for website loading speed.
Modern browsers (Chrome, Firefox, Edge, and Safari in recent versions) all support AVIF natively, making it a practical choice for web images today rather than an experimental one.
Converting to AVIF is especially valuable for image-heavy websites, where reducing PNG file sizes directly improves page load times and Core Web Vitals scores without any visible quality loss.
How to Convert PNG to AVIF
- Upload your PNG file.
- MiConvert re-encodes the image using AV1-based compression, preserving transparency.
- Download the converted AVIF file.
- Use directly on your website for faster load times.
Key Features of MiConvert PNG to AVIF
- Significantly smaller file sizes than PNG at comparable visual quality
- Preserves alpha transparency from the source PNG
- Supported natively by all current major browsers
- Ideal for improving website load times and Core Web Vitals scores
- Free for files up to 50MB, 100MB for registered accounts
Video Tutorial
Watch this step-by-step tutorial to learn how to convert PNG files to AVIF format online for free using MiConvert.com. No software installation required.
Frequent Questions
Will transparency be preserved converting PNG to AVIF?
Yes — AVIF supports alpha transparency, so transparent backgrounds in your PNG carry over correctly.
How much smaller will the AVIF file be?
It varies by image content, but AVIF typically produces files 50% or more smaller than the equivalent PNG at visually comparable quality.
Do all browsers support AVIF?
Current versions of Chrome, Firefox, Edge, and Safari all support AVIF natively. If you need to support very old browsers, keep a PNG or JPG fallback for those visitors.
Will there be any visible quality loss?
At our default settings, quality loss is designed to be visually imperceptible — AVIF's compression efficiency means it needs less data to represent the same visual detail as PNG.
Is there a file size limit?
50MB free, 100MB for registered accounts.