Favicon Generator

A favicon generator creates the small icons browsers show in tabs, bookmarks, and some home screens. This Favicon Generator builds PNG images at 16×16, 32×32, 48×48, and 180×180 from either a one- or two-character letter mark or an uploaded image.

Text mode fills a square with your background HEX, draws uppercase characters centered in bold system-ui at about 55% of the canvas size, and exports PNG data URLs. Image mode scales the uploaded bitmap to each square size and ignores the text colors.

The download action saves separate PNG files named favicon-16x16.png through favicon-180x180.png. The tool does not emit .ico, SVG favicons, or a ready-made HTML snippet.

Browsers pick icons through HTML link relations and package manifests. Shipping multiple PNG sizes covers common tab icons and Apple touch-style assets even when you are not yet ready for a full PWA icon set.

You often need multiple raster sizes quickly for a static site, PWA apple-touch icon, or CMS that expects PNGs. Generating them locally avoids uploading logos to third-party favicon factories.

Letter marks are useful for early product shells before a final logo lockup exists.

Early startups often need a temporary letter favicon before the logo is final. Generating PNGs locally keeps unfinished marks off public favicon SaaS galleries.

• Text mark or image source
• Four common PNG sizes including 180 for Apple touch-style use
• One-click download pack
• Browser canvas rendering with no server upload of your artwork

For each size, a canvas is created, filled or drawn, then exported with canvas.toDataURL("image/png"). Text is limited to two characters, uppercased, and vertically nudged slightly for optical centering.

If an image is loaded, drawImage stretches it to the square. Non-square sources will crop by scaling to cover the square bounds of the canvas (the image is fit to width and height of the size, which can distort non-square art—prefer square masters).

Download PNG pack triggers a save for each previewed size. Allow multiple downloads in your browser if the batch is blocked.

Preview tiles show each PNG. Small sizes may look soft or heavy depending on letter complexity—geometric characters usually read better at 16px.

180×180 is commonly used for apple-touch-icon style assets; your host may still want additional sizes or an .ico. Convert externally if a host requires true ICO containers.

16×16 rewards bold geometry. If your letter looks muddy, try a single character, higher contrast, or an image specially drawn for tiny sizes.

A clear tab icon improves recognition across dozens of open tabs and bookmark lists. Consistent sizing prevents browsers from scaling a single huge PNG poorly.

Generating assets client-side keeps draft logos private during early branding.

There is no color-theory formula here—output pixels come from canvas drawing. Font size is floor(size × 0.55). Text mode uses your HEX background and foreground when they parse; otherwise it falls back to defaults.

PNG via canvas at sizes {16, 32, 48, 180}; font-size ≈ 0.55 × size

size

Edge length in pixels for each exported square PNG.

text

One or two characters drawn centered and uppercased.

Generate a practical PNG favicon pack from a letter mark or square image, download the sizes you need, and wire them into your site’s icon links. Convert to .ico only when your hosting or legacy browser requirements demand it.