When to use PNG
For graphics, logos, and assets needing sharp edges or transparency with no quality loss.
comparison
For most websites, WebP is the best default. AVIF can be smaller, but compatibility and workflow constraints still matter.
For graphics, logos, and assets needing sharp edges or transparency with no quality loss.
For photos where compatibility is critical and tiny quality loss is acceptable.
For modern websites where smaller file sizes improve Core Web Vitals and UX.
Not always. AVIF is excellent but can be slower to encode and may complicate some pipelines.
Compress large images first, then convert suitable assets to WebP.