Free browser image tool
PNG to AVIF Converter Online
Convert PNG images to AVIF locally in your browser without uploading the file.
Setup: Upload the PNG file, choose the AVIF preset, review quality where available, then convert and download the .avif output.
Converts many image inputs to PNG, JPG, WEBP, GIF, BMP, TIFF, AVIF or a custom extension. First run downloads the FFmpeg engine; your image stays in the browser.
Your image is processed in your browser. No login is required.
What this page does
This focused workflow converts PNG to AVIF to create a modern compressed copy of a PNG for compatible web workflows. PNG is commonly used for lossless pixels, sharp text and transparency, with larger photographic files. AVIF is useful for strong compression for modern web images, with slower encoding and inconsistent support in older software.
How to use PNG to AVIF Converter
- Upload a .png image.
- Choose AVIF from the converter presets.
- Adjust quality when the AVIF encoder provides that option, then run the conversion.
- Download the .avif file and test it in the final application.
Good uses
- Large PNG illustrations and screenshots
- Transparent assets on modern websites
- Comparing file size against PNG and WebP alternatives
How to verify the result
- Confirm the downloaded filename ends in .avif.
- Compare width, height, color and orientation with the source.
- Inspect the result at full size and test it in the destination that requires AVIF.
Known limitations
- AVIF can retain transparency when the source and encoder provide it.
- The conversion creates one still AVIF image.
- Some destination applications may not preserve or display AVIF transparency correctly.
Examples
- Convert a large transparent illustration to AVIF for testing.
- Create a smaller modern copy of a screenshot.
- Compare AVIF output with the original PNG at actual display size.