Every Issue
Identified.
Every Book
Valued.
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
Live example
Every collection gets its own link — click to explore this one, with live prices.
Three steps to
a live catalog.
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.
Built for
serious collectors.
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.
Simple,
honest pricing.
Start free. Upgrade when your collection outgrows 1000 books.
- Up to 1000 books
- Full auto-identification
- eBay market pricing
- Cover images
- Public profile
- Unlimited books
- Full auto-identification
- eBay market pricing
- Cover images
- Public profile
- Focused on US comics — international titles may not match reliably
- eBay prices reflect the current secondary market, not CGC census values or price guides
- Market pricing needs a Comic Vine match; matched books with no recent eBay sales fall back to original cover price, and unmatched books show cost basis only
- Auto-identification works best with a standard title and issue number; choose your exact variant from the matched issue when adding a book
- Auto-identification requires a free Comic Vine API key — set up in Account Settings after signup (takes 30 seconds)