Know what your comics are worth, and when to sell.
Bring in your collection from CLZ, GoCollect, any spreadsheet, or a barcode scan. We keep your shelf and your cost basis for free, forever. When a book you own has real sale receipts behind it, you'll see them. When it doesn't, we'll say so instead of guessing.
Tracking the 250 keys collectors ask about most — see the list — with daily guide data from PriceCharting and real auction receipts.
Your shelf, your numbers.
Unlimited cataloging. Every copy keeps its grade, what you paid, and which box it's in. If a number looks wrong — a cover price entered as a cost, a dropped digit — we flag it instead of letting it quietly skew your total.
Values you can check.
A value is either verified with receipts you can open, modeled with a confidence you can see, or plainly “not valued yet.” We don't show a price we can't stand behind.
Signals when it matters.
Watch a book and set the price you'd sell at. When it crosses, or when a confirmed movie or show date lands on something you own, you'll hear about it.
Free to catalog, always. Signals are a paid tier when you want them — pricing. Built by a collector, not a data company — about.
Catalog data © Grand Comics Database under CC BY 3.0.