Favicon Preview Tool

Preview your favicon at real browser tab, bookmark, and mobile home screen sizes free online. Upload your icon and check it actually reads clearly at every size.

Browser only -- your image never uploads anywhere.

How to Use This Tool

Upload your favicon imageAny image format

See it at real display sizesTab, bookmark, and mobile home screen

Check it's still legibleSmall sizes reveal detail loss

Favicon Preview Tool is a free online tool that works entirely in your browser — no signup, no data uploaded, no limits.

Real Sizes Reveal What Design Tools Hide

A favicon edited at full size in a design tool can look completely different once actually rendered at the tiny dimensions browsers use -- 16x16 pixels for a standard tab icon leaves almost no room for fine detail. This tool shows your upload at the genuine sizes it will actually display at, surfacing legibility problems before you ship it.

Why Simple, Bold Shapes Win at Small Sizes

Thin lines, small text, and intricate detail simply don't survive being scaled down to icon size -- they blur into illegible noise. Bold shapes with strong contrast and a simplified silhouette remain recognizable even at the smallest browser tab size.

Favicon Versus Full Logo

Many brands deliberately use a simplified mark or single initial for their favicon rather than their full wordmark logo, recognizing that a complete logo with text rarely stays legible once shrunk to icon dimensions.

Frequently Asked Questions

Browser tabs display favicons at very small sizes (typically 16x16 to 32x32 pixels), where fine detail, thin lines, or small text become illegible -- a favicon that looks great as a large image often loses clarity once shrunk down to actual real-world display size.

Browser tab size (16x16, 32x32), bookmark bar size, and mobile home screen icon size (typically larger, around 180x180 for iOS) -- the range of contexts your favicon actually needs to work across.

Bold, simple shapes with strong contrast and minimal fine detail tend to remain recognizable even at 16x16 pixels, while intricate logos or thin-stroke designs often blur into an unrecognizable blob at that size.

Often yes -- many brands use a simplified mark, single letter, or icon-only version for the favicon specifically, since a full wordmark logo rarely remains legible at tab-icon size.

This focuses specifically on previewing how your existing icon looks at real display sizes -- it doesn't generate the multiple file formats and sizes (ICO, PNG variants) a complete favicon implementation typically needs.