Add your comics and Longbox.me automatically matches them to Comic Vine's database — pulling cover art, issue details, and real eBay market prices for your exact grade.
No credit card required · Free up to 1000 books · $20 / year for unlimited
No manual data entry beyond your own collection details. Everything else is automatic.
Enter titles and issue numbers manually, or import a spreadsheet — CSV, Excel, or Google Sheets. Include grade, CGC cert number, price paid, and variant.
Each book is matched to Comic Vine's database — pulling the official cover image, cover date, publisher, key issue notes, and series details. Requires a free Comic Vine API key, added in Account Settings after signup.
Current eBay sold listings surface a market price for your exact grade. CGC slabs and raw copies are tracked and priced separately.
Every matched issue displays its official cover art, sourced from Comic Vine and cached for fast loading.
eBay prices pulled at your specific grade — 9.8, 9.6, raw — and automatically refreshed every 30 days.
Comic Vine's key issue notes surface automatically so you always know which books in your collection matter most.
Total collection value at a glance, with per-book breakdown of cost basis vs. current eBay market price.
Share a public link to your collection with other collectors. Toggle collection value visibility on or off.
Track graded slab details alongside raw books. Flag signature series, restored, and qualified copies separately.
Bring your collection over from a CSV, an Excel workbook, or a Google Sheets export — we find your columns and let you pick which tabs to import.
Record exactly which variant you own — choose from the issue's known covers and it's tagged and filterable across your collection.
Tag, search, and filter your books, sort by value or date, and switch between grid and table views — with total value tracked over time.
Start free. Upgrade when your collection outgrows 1000 books.