Free · Runs on your device · No signup

Barcode Generator

Generate validated CODE128, CODE39, EAN, UPC, and ITF barcodes locally as SVG or PNG.

Generated values and inputs stay in browser memory in this tab. Nothing is uploaded, logged, saved, or added to the URL.

Enter text and choose an action.

Why this tool is different

Apply format-specific character, length, and check-digit rules before rendering a barcode.

Requirements and recommendations

Use Barcode Generator

  • Enter or configure the source values.
  • Choose the relevant mode and run the action.
  • Review the result before copying or downloading it.
How OpenFileTools processes it

Local processing, explicit choices.

OpenFileTools performs this generation locally in the browser after an explicit action.

Frequently asked

Questions, answered.

Is any input uploaded?

No. Input and results stay in memory in the current browser tab.

What should I verify?

Symbology rules differ; GS1 application identifiers are not inferred or claimed.