𝗕𝗮𝗿𝗰𝗼𝗱𝗲𝘀 𝗪𝗶𝘁𝗵𝗼𝘂𝘁 𝗔 𝗕𝗮𝗰𝗸𝗲𝗻𝗱

Stop using APIs for barcodes. You do not need a server. You do not need rate limits. JsBarcode does the work on the client side.

Use SVG for printing. Canvas images blur when printed. Blurry edges stop scanners from working. SVG stays crisp at any size.

Choose your format:

  • Code 128: Use this for internal SKUs and asset tags.
  • EAN-13: Enter 12 digits. JsBarcode adds the check digit.
  • UPC-A: Enter 11 digits. JsBarcode adds the check digit.

Tips for better scans:

  • Use a margin of 10px or more.
  • Scanners need white space to read the code.
  • Use width 3 or 4 for low resolution printers.

Need a PNG file? Render the barcode to a hidden canvas. Convert the canvas to a data URL. The user gets a file without seeing the canvas.

Privacy is a win. Data stays in the browser. No sensitive SKUs leave the page.

Source: https://dev.to/jvancedev/rendering-scannable-barcodes-in-the-browser-with-jsbarcode-no-backend-3j28