Logo Legibility Tester

Free branding design tool

Will your logo still read clearly at the size of a favicon? What happens on a dark background, or when colour disappears? Upload a logo to compare five realistic placements. Your image stays on your device and is not uploaded to the website.

Test your logo in context

Choose a logo to begin.

Favicon

16 × 16 px · browser tab

Logo preview at 16 pixels

Small app icon

32 × 32 px · small UI

Logo preview at 32 pixels

Social profile

64 × 64 px · compact avatar

Logo preview in a compact social profile

Website header

180 × 48 px · horizontal header

Logo preview in a compact website header

Business card

270 × 92 px · print-inspired width

Logo preview at business card scale

These are useful stress-test sizes, not official dimensions for every service. Square icons and wide wordmarks have different needs. If a full logo disappears at 16 pixels, consider a simpler brand mark specifically for small placements.

Try a light background, dark background and greyscale view. Ask: can someone recognise the shape, read the smallest lettering, and identify the brand without relying solely on colour? If not, a simplified small-size variant may work better than shrinking your entire wordmark.

Next, explore what makes a good small-business logo, accessible brand colour palettes, and building a practical brand style guide.

How to use the logo legibility test

For the most reliable comparison, upload the actual logo file rather than a screenshot. PNG or WebP with transparency is ideal for testing a mark across contrasting backgrounds. JPEG files normally have a solid background, which will remain visible over the darker test surface.

A full wordmark may be perfectly appropriate for a website header while being unreadable as a favicon. It is common and sensible to maintain a compact symbol for tiny spaces. The goal is consistency of recognition, not forcing one file into every context.

The preview scales the image to fit each placement and displays approximate CSS pixel sizes. Printed output depends on the printer, paper and physical dimensions. Check a real proof before ordering print materials.