Barcode Scanner (Camera & Image)
Scan and decode retail and industrial barcodes (EAN-13, UPC, Code 128, Code 39, ITF) using your webcam or uploaded image screenshots.
Upload Barcode Photo or Screenshot
Supports Code 128, EAN-13, EAN-8, UPC, Code 39, ITF
What is Barcode Scanner (Camera & Image)?
The Barcode Scanner decodes 1D linear barcodes in real time from live camera video streams or uploaded image files. It recognizes standard barcode formats including CODE128, EAN-13, UPC-A, and CODE39, displaying decoded numeric strings with single-click copy functionality and zero remote server processing.
Designed for accuracy, speed, and privacy, this tool runs entirely on your local device with zero network latency.
How to Use the Barcode Scanner (Camera & Image)
- 1Choose your scanning mode: "Camera Live Scan" or "Upload Barcode Image".
- 2If using the camera, align the horizontal red guide line across the barcode bars.
- 3If using an image file, drag and drop an image containing a clear, well-lit barcode.
- 4View the decoded barcode number and format instantly, and click "Copy" to save to clipboard.
Formula & Calculation Logic
Samples scanline pixel intensities across image frames, determines bar-and-space width ratios, and matches patterns against 1D symbology decode tables.
Barcode_Decoder = Scanline_Sampling(Grayscale_Pixels) -> Measure_Width_Ratios() -> Match_Pattern_Table()Barcode Scanner (Camera & Image) Frequently Asked Questions
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