Decode view
Reads the stamp barcode and shows the useful philatelic detail: value, issue, dates, origin and notes.
Up to now, you've only collected half the story.
Modern GB Stamp Decoder reads the barcode on your Royal Mail stamps and shows the details collectors look for: issue, value, colour, dates, origin and notes. Then you can mark what you have and keep a clean record.
Three simple steps to identify and build your collection.
Point your camera at the stamp barcode on any modern GB stamp. Reads through plastic mounts and album sleeves.
Check the issue, value, colour, print date, origin and notes without hunting through raw barcode text.
Mark it Mint or Used, save it to your list, and make a tidy label for an album page, sleeve, photo or write-up.
Camera opens straight to scan. No menus, no setup, no friction. Just point and read.
Shows the stamp details in terms collectors use, with the technical barcode text kept out of the way.
Mark Mint or Used, see what you already have, and spot the gaps in a set.
Generate clean, printable labels for albums, sleeves, photos or write-ups.
Use the built-in MGB reference today, with more collector tools planned for Pro.
Barcode contents, camera images and your collection stay on-device. Anonymous successful-scan counts help us improve the app.
Identify the stamp in front of you, then check whether it is already in your collection.
Reads the stamp barcode and shows the useful philatelic detail: value, issue, dates, origin and notes.
Open the full decode when you want supplier details, version data, labels or collection actions.
The useful collector details first, with the lower-level barcode information available when you want it.
Whether you are checking varieties or keeping a simple list, the job is the same: identify the stamp and record whether you have it.
The full barcoded definitive family — from the 2022 changeover onward.
King Charles III era issues, with colour, supply, and print-date detail.
Country issues for Scotland, Wales, NI and England — flagged as regional.
FDC coils and prestige panes — origin labelled clearly in the decode.
The sponsored postmark is included as a small nod to Digital Philately: real stamps and covers first, with decoded barcode detail as another piece of the record.
Royal Mail stamp barcodes, also known as DataMatrix barcodes — the ones printed on modern GB barcoded stamps from the 2022 changeover onward, including KCIII definitives, regional issues and Christmas stamps.
Yes. Scanning and decoding happen on your device. You don't need a connection in the field, and your collection isn't shipped off to a server.
The app does not use advertising or cross-app tracking. It sends anonymous successful-camera-scan events to PostHog, without barcode strings, images or collection contents. This website uses optional Google Analytics only if you accept analytics cookies.
The core scan, decode and collection tools are free. Pro will add extra collector tools for people who want more detail and easier export. You'll see exactly what's included before you opt in.
Stamp Decoder is live on the Apple App Store. Android users can join the open test on Google Play and install the app now.
No. Modern GB Stamp Decoder is an independent collector tool. Stamp imagery shown on this site is used under licence — we are not affiliated with Royal Mail Group Ltd.
Download the iPhone app from the App Store, or join the Android open test on Google Play.