IBE Barcode Scanner

The reading half of IBE Barcode Studio: a free, open-source iOS and Android app built with .NET MAUI. Point, press Scan, read. It reads what the Generator prints — including two formats no mobile scanning SDK supports, which the app decodes itself. No database, no account, no telemetry: scans live in memory for the session and nothing leaves the device.

Source on GitHub Download

How it scans

One Scan button for everything. The preview stays live for aiming; a press takes a single frame and sends it to the platform engine and to the app's own decoders, so you never pick a mode. Scanning from a photo works the same way.
Every code in the picture. One press can hold several labels; the first takes the result card and the rest are listed as “Also in the picture”, each with its own links.
Results do something. Search Google, copy, share; a link inside a payload gets its own Open link row.
Torch, camera switch, portrait lock, session history with copy and share.
NFC tags on Android, including tags tapped while the app is closed.

Privacy and languages

No ads, no analytics, no network calls
No database — history lives only for the session
English, 简体中文, 繁體中文, 日本語
MIT licensed; the native engines (ML Kit, Apple Vision) are used royalty-free

Format support

Format	Android	iPhone	How
Code 39 / Extended, Code 93, Codabar, Interleaved 2 of 5	yes	yes	ML Kit / Apple Vision
Code 128, GS1-128	yes	yes	native engine + GS1 AI parsing
EAN-13, EAN-8, UPC-A, UPC-E, ISBN	yes	yes	native engine + UPC/EAN/ISBN normalization
QR Code, Data Matrix, PDF417, Aztec	yes	yes	native engine
UPC 2/5-digit supplements	engine-dependent	engine-dependent	shown when the engine reports them
MSI Plessey	yes, own decoder	yes, own decoder	scanline decoder — no SDK supports it
USPS Postnet	yes, own decoder	yes, own decoder	bar-height decoder — no SDK supports it

Build it yourself

git clone https://github.com/bobhuang1/IBEBarcodeScanner.git
cd IBEBarcodeScanner
dotnet build                                # Android + iOS + core tests
dotnet test                                 # core logic tests, no device needed
dotnet build src/IBEBarcode.Scanner -t:Run -f net10.0-android

Building the iOS target needs a Mac with Xcode; the Android target and all core tests build anywhere with the .NET SDK. Full instructions are in the README.