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Free Online Seal Forgery Suspicion Detector - ATools

Free online seal forgery suspicion detector: Heuristic analysis of red seals based on pixel features, outputs suspicion score and mask preview (for reference only).

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Free online seal forgery suspicion detector that supports uploading scanned documents/screenshots and performs pixel-level heuristic analysis on red seal areas, analyzing features such as connected components, boundary complexity, and color dispersion to provide suspicion scores and mask previews. Pure frontend local operation without image uploads, results are for reference only and should be combined with original documents and business processes for comprehensive judgment.
Note: This is a heuristic 'suspicion' detection based on pixel features, not equivalent to forensic identification results. Strongly recommended to use results as reference clues and combine with original documents, scanning processes and signature system logs for comprehensive judgment.