VS Code Barcode Generator

A VS Code extension that adds a right-click command to generate a barcode from the currently selected text.

Features

• Right-click in editor selection: Barcode > Generate Barcode
• Input handling:
  • 12 digits: generates EAN13 and appends the computed check digit
  • 13 digits: validates EAN13 check digit and blocks generation if invalid
  • Other text: lets you choose Code 128 or QR Code
• Preview in a webview
• Click the barcode image to copy it to clipboard (Copied to clipboard toast)
• Export the current barcode/QR as an A4 PDF (Export PDF)

Screenshot

Run locally

1. Open this folder in VS Code.
2. Install dependencies:

npm install

3. Start debugging from Run and Debug using Run Extension.
4. In the Extension Development Host window:
   • select text in any file
   • right-click
   • click Barcode > Generate Barcode

Publish to VS Code Marketplace

1. Make sure your publisher in package.json matches your real Marketplace publisher ID.
2. Install dependencies:

npm install

3. Create a VSIX package:

npm run package:vsix

4. Publish:

npm run publish:vsce

You must have a valid Azure DevOps Personal Access Token configured for vsce before publishing.

Main files

• package.json: extension manifest, commands, scripts, publishing metadata
• src/extension.js: selection rules, EAN13 validation, webview rendering, clipboard copy, PDF export