Methodology and limits

Useful technical evidence, without pretending it is legal certainty.

SimilarLogo is designed for private, user-controlled brand folders. It helps people organize a visual review. It does not search the open web or a trademark registry.

Browser-local

Image pixels are processed on the device. SimilarLogo does not receive source files used by the public browser tools.

Explainable

Results use visible technical signals such as shape hashes, edge direction, color distribution, transparency and proportion.

Fail-honest

A high visual relationship is not ownership proof, infringement analysis, originality certification or trademark clearance.

Relationship tiers

Exact

Technical fingerprints are nearly identical. Check whether the file is an unnecessary duplicate.

Close variant

Core construction is strongly related, with changes such as color, crop, scale or export treatment.

Related

Several visual signals overlap, but the item may be a legitimate layout or family member.

Different

The current fingerprint system does not find a strong relationship. Human review still remains necessary.

The internal ranking score orders a private result set. It is not a calibrated probability and should not be compared across unrelated projects.

Known failure modes

  • Large empty margins, background plates and poor crops can dominate the fingerprint.
  • Wordmarks with different text may share a similar overall silhouette.
  • Small color changes can appear important or unimportant depending on shape emphasis.
  • Fingerprint-only records cannot reproduce original pixels or a visual difference overlay.
  • The tool does not check jurisdiction, trademark class, market context, pronunciation or likelihood of confusion.

Use the result as a review queue.

Confirm important findings against original artwork, brand guidelines and qualified legal research where necessary.

Open private similarity
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.