How to Convert PNG to AVIF

AVIF, built on the AV1 video codec's compression, supports both lossy and lossless modes, which makes it a genuine alternative to PNG rather than a strict downgrade. In lossless mode, AVIF can match PNG's pixel-perfect output while still producing a smaller file in many cases; in lossy mode, it shrinks file size dramatically further, which matters for websites where PNG graphics and screenshots are otherwise some of the heaviest assets on a page. AVIF also supports a full alpha channel, so transparency carries over from PNG without any loss.

The main tradeoff is encoding time and compatibility: AVIF takes longer to encode than PNG, and while current major browsers support it, very old browsers and some legacy image tools may not display AVIF correctly, which is worth checking against your specific use case.

1. Install Turbo Batch Image Converter Pro on your Windows PC.
2. Open the app and select Batch Mode for multiple files, or Individual Mode for a single PNG.
3. Drag your PNG file or folder into the app window, enabling recursive folder scanning if needed.
4. Set the "From" format to PNG and the "To" format to AVIF.
5. Adjust the quality setting depending on whether you want lossless or lossy output.
6. Click Convert. AVIF files are written to the output folder, fully offline.

• 100% offline — your images are never uploaded anywhere
• Bulk conversion of entire folders, including sub-folders, in one pass
• Preserves transparency from PNG's alpha channel
• Multi-core processing helps offset AVIF's heavier encoding cost
• Option to delete original PNG files automatically once converted
• No recurring subscription or hidden upload limits