How do you generate a favicon from an image?
To generate a favicon, upload a square image and click Generate Favicons. The image is resized in your browser to six PNG files: 16x16, 32x32, 48x48, 64x64, 128x128 and 256x256 pixels, each downloadable separately. The 16 and 32 pixel files cover browser tabs and bookmarks, while 128 and 256 pixels serve app icons and Windows tiles.
What size should a favicon be?
A favicon at 32x32 pixels is the safe default for browser tabs, with 16x16 as the fallback for bookmark bars. Apple touch icons want 180x180, Android home screens 192x192, and Windows tiles up to 256x256. Start from a square source image of at least 256 pixels so every downscaled size stays sharp.
Runs in your browser. Your files and text never leave your device - nothing is uploaded.
