A structured registry for serious collectors.

Record what you own. Prove what it is. Track its history.
Build a collection that stays understandable over time.

Designed for collectors who care about accuracy, provenance, preservation and long-term records.

Access the RegistrySee how it works →
Fantasy dragon artwork representing collectible role-playing game collections
No matter what you collect.

Collectaneum gives you the tools to document the items you own, their history, and what makes them unique.

Built around collecting principles rather than a single hobby, the same structured approach can support role-playing games, militaria, toys, books, coins, comics and specialist collections.

Examples of different collecting domains supported by Collectaneum
Created by collectors who wanted more than a spreadsheet and less than a marketplace.
Most collections outgrow their tools.

Spreadsheets start simple, then become inconsistent. Photos live in folders. Receipts in emails. Notes become scattered.

As collections deepen, details multiply: editions, object types, models, printings, variants, condition, provenance, value and ownership history.

Without structure, it becomes harder to search, compare and trust your own records.

The problem
Collections do not only need listing. They need context.
Designed as a registry, not a tracker.

Most collection tools focus on inventory. Collectaneum focuses on documenting ownership, provenance, condition, photographs and the details that make an item unique.

The goal is simple: create records that remain understandable years from now.

Examples across collecting domains
Role Playing Games
Franchise → Edition → Product → Variant → Owned Item
Militaria
Conflict / Area → Campaign / Era → Product → Variant → Owned Item
Coins
Country → Series → Coin → Variety → Owned Item
Clarity, not clutter.
Dungeons and Dragons woodgrain box set collectible
More than cataloguing.
Collectaneum builds a long-term record of your collection: what each item is, where it came from, how it has changed, and what it is worth over time.
Item records
Capture the item you actually own: edition, printing, version, publisher, manufacturer, condition, acquisition and notable details.
Photos & evidence
Keep visual proof, defects, markings, grading and supporting records together.
History
Track acquisition, ownership and valuation without overwriting the past.
Structure
Keep owned items, products and variants consistent as your collection scales.
Why structure matters.
A first printing can become mixed with later printings. Variants can disappear inside notes. Provenance can become separated from photographs, receipts and acquisition records.
Collectaneum keeps these relationships connected so your collection remains understandable as it grows.
Provenance
Track where an item came from and how it entered your collection.
Variants
Distinguish editions, printings, releases and meaningful differences.
Evidence
Keep photographs, markings, notes and supporting records together.
History
Preserve acquisition and valuation history without overwriting past records.
Built for serious collection management.
Structured catalog example
Structured Catalog
Model editions, products and variants with precision.
Item Details example
Item Details & Notes
Record the exact item you actually own — condition, markings, and notes.
Photos and grading example
Multiple photos
Comprehensive visual recording.
Photos and grading example
Photos & Grading
Maintain consistent visual records of condition and detail.
Visibility control
Curated Items & Collections
Create as many, of your own distinctive collections of items
Ownership tracking
Acquisition & Ownership Tracking
Record where items came from, where it went and maintain a clear history over time.
Valuation history example
Valuation History
Track value over time without losing past records.
Notable Details
Notable Details
Record the unique details that make this specific copy distinctive.
A collection that stays understandable.
Whether you are tracking a growing collection, preparing for insurance, sharing records with another collector, or ensuring someone else can understand it in the future, your records remain structured, consistent and usable.
Beyond the registry.
Collectaneum is building the Collector's Cookbook: a growing library of practical collecting knowledge covering provenance, preservation, authentication, cataloguing, photography and more.
Designed to help collectors not only record what they own, but understand it.
Preservation
Learn how different materials age and how to protect them.
Authentication
Understand hallmarks, maker marks, identifiers and supporting evidence.
Documentation
Practical guidance for cataloguing, photography and provenance.
Coming soon
The Cookbook will grow alongside the registry and the collecting domains it supports.
Start free. Upgrade as your collection grows.
Full registry features from the start — upgrade for larger collections, expanded photo sets, and structured reporting.
View pricingAccess the Registry