Test your logo before the world does.
Free logo testing tool

Test your logo
before the world does.

Drop your logo and find out where it breaks — before your users do. Scales, contrast, colour blindness, blur, the works. Takes about ten seconds.

Upload Symbol
Drop or click to upload SVG or PNG · transparent bg · square
Preview Background
+
White Paper Black Orange Blue Alpha Custom
Safe Zone
0%
Simulates platform cropping — iOS, Slack, and similar add padding inside their containers.
Best format: square SVG or PNG with transparent background and a black symbol.
D theme R reset ←→ bg
Favicon
App icon
Thumbnail
Profile
Drop your symbol to begin
SVG or PNG · transparent background · square
Free logo tester
Does your logo
actually hold up?

Upload and instantly see favicons, contrast, colour blindness, and blur.

Tap to drop your logo
SVG or PNG — transparent bg preferred
Use the nav below to adjust & preview
Enter your 6-character share code
Adjust
Preview Background
+
White Paper Black Orange Blue Alpha Custom
Safe Zone
0%
Simulates safe zone cropping on iOS, Slack, and similar platforms.

Theme, AI review, and API key live here.

Results
Scale Tests
Favicon
Platform Mockups
Contrast Tests
Analysis
Export Report
Preview —
Select sections
to see a preview
Settings
Appearance
AI Review
Stored locally in your browser — only sent to Anthropic's API directly. Get a key →
Show AI Review section
Export Logo Kit