Small icons lose detail quickly. Always inspect the 16px and 32px previews before treating a large canvas preview as finished.
The main generator remains the fast text/emoji favicon maker. This specialist review renders the same current design at real favicon/touch sizes, checks foreground/background contrast, and produces a preview sheet before you download individual assets.
Contrast is a visual legibility heuristic for the icon artwork, not a WCAG accessibility certification. Real browser chrome, scaling and platform rendering still need post-deployment review.
Create from artwork, inspect tiny sizes, generate platform assets, then audit the local package and manifest declarations before deployment.
These tools do not fetch your live site, verify HTTP headers, confirm browser cache refresh, test service workers, or certify installability across every platform.
WebToolArc