Collection Value Tracker

Why track your collection's value

Most collectors have no real idea what their collection is worth until they sit down and add it up — and by then the numbers are usually out of date. This tracker keeps a running total you can update in seconds, with a one-click path to real eBay sold prices so your values reflect what cards actually sell for, not wishful asking prices.

It runs entirely in your browser. Nothing is uploaded, so it stays private — the trade-off is that it lives on this device. When you've got values dialed in, the grading ROI calculator tells you which cards are worth sending in, and the centering tool tells you which ones have a real shot at a 10.

Getting the values right

A tracker is only as honest as the numbers you type into it, and the two ways collectors get this wrong are pricing off asking prices instead of sold ones, and logging a card by the wrong name so the comps come back for a different card entirely. What is a Victor Wembanyama card worth? lays out the identify → grade → comp method the "sold ↗" links here are built for.

Name each card the way sellers list it — brand, year, set, parallel, number, grade — and the sold-comp search does the rest. The rookie card checklist gives you the exact naming for every 2023-24 brand, the autograph checklist does the same for signature lanes, and the Prizm parallel rainbow is the one to check before you log a colour you can't name.

Two things that quietly move a collection's real value: whether a raw card is worth grading — see should you grade your Wemby cards? — and how the raw ones are stored, covered in sealed boxes & supplies. A card that loses a corner in a shoebox loses more than any market swing.