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How to enable and use debug mode in DBR-JS?

Enable debug mode

Starting from v11.0.3000, you can enable the demo’s debug mode by appending ?debug=true to the demo URL, for example:
https://demo.dynamsoft.com/barcode-reader-js/?debug=true

This version also adds:

  • Custom template upload feature
  • Video frame saving during debugging
  • Improved UI with:
    • Single/Multiple barcode toggle
    • Scan Mode selection (Speed, Balance, Coverage)
    • Barcode Color Options (Inverted, Normal, Both)

advanced settings

Upload a custom template

  1. Enable debug mode with ?debug=true
  2. Use the custom template upload button (bottom-left of the UI)
  3. Upload a compatible .json template for v11.0.3000

Note: Once a template is uploaded, changing other settings will have no effect until the template is cleared.

Save video frames

In debug mode, you can save video frames for testing and analysis using the button in the top-right of the UI.

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