Convert PNG Icons to WebP with Transparent Background

Web icons served as PNG files are often 2–5× larger than they need to be. Switching to WebP — which supports the same alpha-channel transparency as PNG — can reduce icon file sizes by 25–40% with no visible quality difference. For a website with 50+ icons, this reduction directly improves page load times and Core Web Vitals scores.

This converter processes all your PNG icons at once. In lossless mode, each icon is perfectly reproduced — every pixel, every anti-aliased edge, every semi-transparent shadow. In lossy mode at quality 85–90, the output is visually identical for most icons at significantly smaller file size.

Use the WebP output files as direct replacements in your CSS and HTML. All modern browsers (Chrome, Firefox, Safari 14+, Edge) support WebP natively — no fallback needed for most web projects. Download as ZIP and unpack into your assets directory.