Collector Tools
Collector Tools
Free, no-nonsense tools for trading-card collectors - built by a real card shop. Measure a card, plan a submission, and collect smarter.
Card Centering CalculatorMeasure how well a card is centered from a scan - the left/right and top/bottom border ratios - and see the PSA, SGC and BGS grade tolerances it meets. Runs entirely in your browser; nothing is uploaded.Open tool →Pre-Grade EstimatorEstimate the PSA or SGC grade a raw card is likely to earn - rate its centering, corners, edges and surface, and see which flaw is capping the grade. An honest self-assessment, not a promise.Open tool →Grade & Crossover HelperWeigh whether a raw card is worth grading, or whether a slab is worth crossing to another grader - considers both grade likelihood and dollar value.Open tool →Trading Card Size & Trimming CheckThink a card might be trimmed? Pick its type, enter the measured width and height, and see how it compares to the known dimensions for that issue - from modern cards back to 1880s tobacco. Nothing is uploaded. Pairs with the full Trading Card Size Guide.Open tool →T206 Authentication & Reprint CheckThink you've got a real T206? Screen the back, lettering, printing, gloss and size against the tells that separate authentic 1909-11 tobacco cards from reprints and fakes. A screening aid, not a substitute for pro authentication.Open tool →