Free browser tool

Logo Grader

Find technical weaknesses before a logo reaches a website, app icon, presentation, or print handoff. The score is rule-based and every point is explained.

Private by design. Your image is analyzed locally in this browser. It is not uploaded or stored.

What makes a logo file production-ready?

A useful master logo should remain recognizable at small sizes, work on light and dark surfaces, avoid unnecessary raster artifacts, and be available in a scalable or high-resolution source. Transparency and controlled file weight make everyday placement easier.

This grader evaluates the uploaded file rather than judging the creative idea. A technically excellent export can still be generic, inaccessible in its final context, or legally risky. Use the result as a QA checklist, not a design verdict.

How the score works

Resolution contributes 20 points, contrast 20, transparency 15, color control 15, format 10, file weight 10, and practical proportions 10. PNG and WebP receive the strongest supported format score. JPEG is marked down because it cannot preserve transparency and often introduces edge noise.

Local processing. Tool uploads stay in this browser and are not stored by SimilarLogo.
Explainable checks. Results come from visible technical rules, not invented AI confidence.
Your file only. These tools do not compare uploads against an unapproved public-logo corpus.
Human review remains essential. Technical results are not legal, trademark, or creative approval.