YOUR LIVING COMIC VAULT
Know what you own.
Know what you own.
Know what you earned.
Track every cover, value your collection, move sold books into a permanent sales ledger, and see realized profit at a glance.
0 active books$0.00 tracked value
Top unrealized gains
Based on current working valuesPortfolio mix
Value, cost basis, gain, and book countHighest-priority books
Collection snapshot
Collection
Prices can be edited directly. Use Edit for every book detail. ● Changes update every tab automatically.
Suggested Price updates automatically. Your Market Price stays separate and editable.
Suggested pricing is preparing.
DISCOVER SOMETHING NEW
Comic Fact of the Day
Marvel's legendary No-Prize was sometimes an actual envelope mailed to readers — with nothing inside it. The joke became a fan tradition, especially for readers who spotted continuity mistakes or cleverly explained them away.
True comic-book history
Source: Marvel ↗
Why this is great
A little piece of collector culture
It turned mistakes into a conversation between creators and readers. Instead of pretending continuity slips never happened, Marvel made the audience part of the fun.
Four Color takeaway
The hobby is bigger than the book
Comics are stories, artifacts, communities, inside jokes, and history all at once. Discover is here to surface the odd details that make collecting memorable.
Sold books
A permanent sales ledger showing what each book cost, what it sold for, and the realized profit or loss.
Suggested Price
Automatic market estimate
Four Color Comic automatically calculates and updates the Suggested Price using available market information. The displayed Suggested Price is an estimate and can change as market conditions change.
Pricing note: Suggested Price is an estimate, not a guaranteed sale price. Rare variants and thinly traded books may require additional collector research.
How to use Suggested Price
Collector guide- Use Suggested Price as a quick starting estimate for the comic.
- Keep your own Market Price separate when your research or knowledge differs.
- Portfolio P/L uses your Market Price when entered; otherwise it uses Suggested Price.
- Review rare variants, signatures, unusual grades, and low-volume books manually before buying or selling.
Suggested Price = Four Color Comic automatic market estimate
Pricing review
Select a comic to review its current Suggested Price.
Grading ROI screening—not a comic grade
This tool helps prioritize which raw books may deserve an in-person inspection before professional grading. It compares broad photo-based condition signals, comparable raw and graded sales, grading costs, key-book significance, supply, and demand. A photo cannot establish a numeric grade and may not reveal restoration, trimming, interior defects, page quality, authenticity, pressing, cleaning, or other factors considered by professional graders. Recommendations are not certification, appraisal, an offer, financial advice, or a guarantee of grade, value, profit, fees, or turnaround time.
This tool helps prioritize which raw books may deserve an in-person inspection before professional grading. It compares broad photo-based condition signals, comparable raw and graded sales, grading costs, key-book significance, supply, and demand. A photo cannot establish a numeric grade and may not reveal restoration, trimming, interior defects, page quality, authenticity, pressing, cleaning, or other factors considered by professional graders. Recommendations are not certification, appraisal, an offer, financial advice, or a guarantee of grade, value, profit, fees, or turnaround time.
Should I grade these?
Raw books are screened for likely grading ROI; certified slabs stay in a separate viewCost assumptions: ROI calculations include a configurable grading, shipping, and insurance estimate. Actual fees, pressing, signature authentication, membership charges, and turnaround times vary. Inspect the complete book before submitting.
Adaptive import assistance
Four Color Comic can adapt to patterns in your data and suggest how fields should be read. For the most accurate and reliable results, use the provided Four Color Comic template. Always review the detected fields and book details before completing an import because automated matches may be incomplete or incorrect.
Four Color Comic can adapt to patterns in your data and suggest how fields should be read. For the most accurate and reliable results, use the provided Four Color Comic template. Always review the detected fields and book details before completing an import because automated matches may be incomplete or incorrect.
Precision collection import
Upload the sheet once. Title, issue number, price, grade, raw/graded status and cover images are detected automatically.
1Upload
2Analyze
3Review
4Import
Drop your collection sheet here
CSV, TSV, TXT, JSON, XLSX or XLS
Optional original cover photos
Choose JPG, PNG or WebP files. Uploaded photos take priority over stock covers and are matched by filename.
0 photos
Choose a collection file. Nothing is saved until you confirm the final import.
COLLECTION-FIRST MEMBERSHIP
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Plans scale by image storage, AI usage, marketplace access, and advanced tools.
Account
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Delete Collection
Permanently remove every comic, uploaded cover and related pricing record. Your login remains active.
Delete Collection
You will be asked to confirm before anything is removed.
Membership billing
Plans start at $1.99 per month. Stripe credentials are stored in server-side Netlify environment variables.
Billing enforcement
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Run SUPABASE_MIGRATION_V33.sql and configure the v33 Stripe environment variables before enabling paid plans.