{"checks":["Measure the PNG rather than trusting its filename","Preserve alpha through every ICO frame","Compare contain and cover before export"],"method":"Browser-side composition with deterministic server-side package generation","name":"PNG to ICO Converter","outputs":[{"contents":"6 embedded sizes","filename":"favicon.ico","purpose":"Browser and desktop fallback"},{"contents":"Explicit raster candidate","filename":"favicon-48x48.png","purpose":"Browser and search contexts"},{"contents":"180\u00d7180 PNG","filename":"apple-touch-icon.png","purpose":"Apple shortcuts"}],"screenshot":"https://favicon.now/static/images/screenshots/png-to-ico.webp","updated":"2026-07-31","url":"https://favicon.now/png-to-ico","worked_example":{"checks":"Square \u00b7 alpha retained \u00b7 native 16px preview","result":"Six-frame ICO with lossless PNG and app-icon companions","source":"1024\u00d71024 transparent RGBA PNG"}}