Your collection of coins, bars, banknotes and stamps in one overview
AgAurium is a free online organiser for collectors and for anyone who owns gold and silver. Record your coins, bars, banknotes, stamps and jewellery, add photos and see at a glance what your collection is worth.
Free · no ads · made possible by donations
What can you keep track of?
Coins and rounds
Bullion and collector coins in gold, silver, platinum, copper and other metals, with weight, fineness, year and mintage. For gold, silver, platinum and palladium the value follows the current price.
Bars
Minted bars, cast bars and CombiBars in gold, silver, platinum, palladium or copper, with manufacturer, serial number and packaging. For each bar you see the purchase price, the current value and your profit or loss.
Banknotes
From old banknotes to 0 euro souvenir notes. Dimensions and face value are filled in automatically where possible, and text in the photo can be recognised.
Stamps
Stamps with country, year, face value and condition, such as mint or used, with a photo of the front and back.
Jewellery
Rings, necklaces, bracelets and other jewellery, with material, weight and carat. For each piece you record the gemstones and pearls set in it.
Gemstones and pearls
Loose gemstones and pearls, or the stones in a piece of jewellery: kind, number, weight in carats, cut, colour and clarity.
From gold and silver to copper and titanium
Besides gold and silver you can also record platinum, palladium, rhodium, copper, bronze, brass, nickel, aluminium, titanium and other metals. For gold, silver, platinum and palladium the value follows the current price; for the other metals you enter a value yourself.
You can also record jewellery, loose gemstones and pearls, and collectible objects such as statues. For gold you enter the fineness or the carat; AgAurium converts it for you.
What can AgAurium do?
- Live prices for gold, silver, platinum and palladium: the value of your precious metal is updated automatically.
- Profit and loss per item and for your whole collection, based on your purchase price.
- Photos of front and back, with white-border cropping and a photo album per item.
- Search, filter and sort on everything: material, type, country, year, serial number and more.
- Bulk import and bulk edit: add a whole stack at once and change fields in a table.
- Import and export as CSV, so your data always stays yours.
- Shared catalogue: known products are filled in automatically as soon as you type the name.
- Dutch, English and German, several currencies, grams or troy ounces, light and dark mode.
- Share and print: share a collection with a link that shows only what you choose, or print an overview.
- Multiple collections: keep coins, banknotes and stamps apart, for example, each with its own name and its own share link. An item can be in several collections.
About AgAurium
The name AgAurium combines Ag and Au, the chemical symbols for silver and gold.
AgAurium grew out of a personal hobby. A search for an app or website to keep track of a collection easily, without having to pay for it, came up empty. That is why AgAurium was built: by a collector, for collectors.
Free, funded by donations
AgAurium is free to use, with no subscription and no ads. The costs of hosting and development are covered by voluntary donations. Do you find AgAurium useful? A small contribution helps to keep it free.
Your collection stays yours
Only you see your items, purchase prices and serial numbers. You can export your data or delete your account at any time. The details are in the privacy statement.
Frequently asked questions
What is AgAurium?
AgAurium is a free online organiser for recording your collection of coins, bars, banknotes and stamps. You store details and photos per item and see in one overview what you have and what it is worth.
Is AgAurium really free?
Yes. There is no subscription, no paid version and there are no ads. AgAurium runs on voluntary donations.
How is the value of my precious metal calculated?
For gold, silver, platinum and palladium, AgAurium uses the fine weight (weight times fineness) and the current price, which is refreshed regularly. For other metals, banknotes, stamps and special pieces you enter a value yourself.
Who can see my collection?
Only you. Your items, purchase prices, serial numbers and notes are shielded per account. To prevent abuse, the administrator can review uploaded photos, without seeing whose they are.
Can I also keep track of jewellery, gemstones, cast bars or collectible objects?
Yes. Besides coins, rounds, bars, banknotes and stamps there are the types cast bar, CombiBar, jewellery and collectible object. For jewellery you record the kind, number, carat weight, cut, colour and clarity of each stone or pearl. For gold you can enter the carat; the fineness is then calculated.