About PNG and WebP
PNG is lossless with full alpha support. Screenshots, UI assets, and anything with sharp edges or text stay pixel-perfect — the tradeoff is large files for photographs.
WebP typically lands 25–35% smaller than JPG at similar quality, supports transparency and animation, and every current browser reads it — which makes it a safe default for the web.
Converting PNG to WebP is lossy — use the quality slider to trade file size against fidelity. Files are converted on the fly and never stored.