FreeFlutter Barcode Scanner

What this demo shows

The page is the flutter_barcode_sdk example app compiled to the web. It scans with a live camera and with images picked from disk, drawing the decoded text and each barcode's quadrilateral over the frame.

• Camera decoding. The preview comes from flutter_lite_camera; every decoded frame reports its real size, so the overlay stays aligned after a resolution change.
• Runtime resolution. Pick a preset and the plugin activates the closest mode the device supports — the negotiated size is read back from the plugin.
• Image file scanning. Scan Image File opens a picker, decodes the selected image and shows it with the annotations and the decoded values.

Browser support: the camera needs HTTPS (or localhost) and your permission. Decoding runs locally in WebAssembly; nothing is uploaded.