Audit your logo like a brand system.
Drop your logo and get a deterministic audit across structure, legibility, colour and adaptability — contrast ratios, colour counts, 16px legibility, dark-mode survival, every number shown.
Runs in your browser — the file never leaves your device
Drop your logo here
or click to browse — PNG, JPG, WebP, GIF or AVIF, up to 10 MB
Checking an SVG icon instead? Use the SVG Icon Analyzer
Why use our Logo Checker?
Multi-size Preview
See your logo at 128px, 64px, 32px and 16px to ensure it remains recognizable at every scale.
Color Analysis
Extract your logo color palette, check contrast ratios and identify the dominant colors used.
Dark Mode Check
Verify your logo looks great on white, black and brand-colored backgrounds for any theme.
Privacy First
Everything runs locally in your browser. Your logo file never leaves your device.
Instant Results
Get a comprehensive audit with scores, recommendations and visual previews in seconds.
Free & Unlimited
Check as many logos as you need without limits. Perfect for designers and brand teams.
How to check your logo
Upload Your Logo
Drag and drop your logo file or click to browse. Supports PNG, JPG, WebP, GIF and AVIF up to 10 MB.
Review the Audit
Get a detailed report with scores for legibility, color analysis, contrast ratios and dark mode compatibility.
Fix & Optimize
Follow actionable recommendations to improve your logo for all platforms and use cases.
Frequently Asked Questions
What does a logo checker analyze?
A logo checker analyzes your logo across multiple dimensions: structure, legibility at small sizes, color contrast ratios, color count, and adaptability to dark mode. It provides a comprehensive score and actionable recommendations.
Why is logo legibility at small sizes important?
Your logo needs to be recognizable at favicon size (16x16px), mobile app icons, and social media avatars. Our checker tests legibility at 128px, 64px, 32px and 16px to ensure your brand remains identifiable.
What is dark-mode survival for logos?
Dark-mode survival checks whether your logo remains visible and professional-looking on dark backgrounds. Many logos designed for white backgrounds become invisible or clash with dark themes.
Is my logo file uploaded to your servers?
No. The logo checker runs entirely in your browser using client-side JavaScript. Your logo file never leaves your device, ensuring complete privacy and security.