COLLECTORS CATALOGUES
CREATE YOUR OWN MUSEUM

A collection inventory app with a museum’s discipline

A spreadsheet holds your collection's facts. A camera roll holds its faces. Neither holds its story.

Collectors Catalogues is free on Android, works in the browser, and carries no advertising and no marketplace. Get the app → · About it

One proper record per piece

Photographs, measurements, materials, condition, where it came from, and what you paid attention to when you examined it. Every piece gets a permanent number in your own register, so "the small one, third shelf" becomes something you can actually find, sort and search.

Honesty is a feature

Identifications carry a confidence level — certain, probable, uncertain — and a note for the reasoning. Collections outlive certainty; a record that admits what you do not know is the one your successors will thank you for.

Private by default, yours forever

Everything starts private. Share a museum of your best pieces if you like, or never share anything. Your records export freely at any time, there is no advertising, and nothing here is for sale — including you.

Free reading, no account needed

Reading patina — What surface color tells you — and doesn’t.

Spotting casting seams — How an object was made narrows its date.

Recognising modern copies — The tells of a later reproduction.

General signs of a reproduction — What later copies get wrong.

Reading hallmarks and maker marks — A punched paper trail.

Weighing and the density test — Mass tells on fakes.

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