Roman Antoninianus (Radiate)
Roman Empire · c. 250 - 280 AD
Antoninianus (Double Denarius)
AI-powered coin identification & valuation
Identify any coinfrom a photo.
Snap a photo of any coin — Coin Identifier names it in seconds and tells you its country, denomination, metal, mint, history, and estimated value.
Live from the community
Recent identifications
A rolling collection of coins just identified by the Coin Identifier community.
British Halfpenny or Farthing (George II or George III era)
Great Britain / United Kingdom · 18th Century (circa 1730-1790)
Halfpenny or Farthing
Ancient Roman AE Coin (Possible Sestertius or Dupondius)
Roman Empire · c. 1st - 3rd Century AD
AE (Bronze/Orichalcum denomination, likely Sestertius or As)
Modern Replica / Fantasy Token (Stylized Medieval/Ancient Design)
Unknown (Likely modern souvenir or replica) · Modern (Late 20th to 21st Century)
None (Not a legal tender coin)
Chinese Copper Coins (Assorted Republic and Imperial Types)
China · Late Qing Dynasty to Republic of China (circa 1900-1930s)
10 Cash / One Cent
One New Penny
United Kingdom · 1971
1 New Penny
2 Lari
Georgia (National Bank of Georgia) · 2006
2 Lari
1 Yuan Chiang Kai-shek
Republic of China (Taiwan) · Year 67 (1978)
1 Yuan
Lincoln Memorial Cent
United States · 1991
1 Cent
Lincoln Memorial Cent
United States · 1982
1 Cent
Lincoln Memorial Cent
United States · 1996
1 Cent
Lincoln Memorial Cent
United States · 1982
One Cent ($0.01)
What you get
A pocket numismatist, always with you
Identify a coin, then explore everything about it — metal, mint, history, value, and your own notes — all in one app.
Photo identification
Point your camera at any coin and get an answer in seconds — no reference catalog, no guesswork.
Estimated value
Get a value range and the factors that drive it — condition, rarity, metal, and demand.
History & significance
Trace each coin through time: who issued it, when, and the story behind its design.
Authenticity checks
Learn the counterfeit red flags to watch for, and how to spot notable varieties and errors.
Personal collection
Build a private catalog of every coin you’ve identified, with your own notes attached.
Community gallery
Browse coins identified by other collectors — and share your own finds publicly or keep them private.
How it works
From photo to coin report in seconds
- Step 01
Take a photo
Capture the obverse and reverse in good light. A clear shot of the design and lettering is all the AI needs.
- Step 02
AI reads the coin
Our model reads the design, legends, mint marks, and metal to identify exactly what you’re holding.
- Step 03
Read the report
Get country, denomination, composition, history, grade, and an estimated value — written like a dealer’s note.
The coin encyclopedia
A reference library for every collector
Explore hundreds of detailed coin entries — US, ancient, British, world, bullion, and error coins — each with history, specifications, grading notes, and value guidance. It’s the field guide that grows alongside the app.
Browse the encyclopediaMore from our studio
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Appraiser.AIAI value estimatesQuestions
Frequently asked
How accurate is Coin Identifier?
Coin Identifier uses advanced AI to recognize coins from a photo and is remarkably good at naming country, denomination, era, and design. That said, it is an AI assistant — always confirm grade, authenticity, and value with a qualified dealer or certified grading service before buying, selling, or insuring.
Can it estimate what my coin is worth?
Yes. Each report includes an estimated value range plus the factors that drive it — condition, rarity, metal content, and collector demand. Treat it as a starting point for research, not a formal appraisal.
Do I photograph both sides of the coin?
For the best result, capture both the obverse (front) and reverse (back) in good light. Clear shots of the design, lettering, and any mint marks help the AI pin down the exact coin and variety.
Is it free to use?
Coin Identifier is free to download and start identifying coins right away, on both the App Store and Google Play.
Turn out your coin jar.
Free to download. The next coin you pick up — identify and value it.