Barcode Generator
Generate Code-128 barcodes from any text in your browser and download them as PNG. No libraries, no uploads.
Pure browser JavaScript — Code-128 encoder hand-rolled, drawn on a canvas locally.
How to use this tool
- Type the text to encode (printable ASCII).
- Adjust bar width and height; toggle the human-readable text.
- Download the barcode as a PNG.
Generate Code-128 barcodes from any text in your browser and download them as PNG. No libraries, no uploads.
Frequently asked questions
- Which symbology is this?
- Code 128, Code Set B, which encodes all printable ASCII characters (space through ~) with a mod-103 checksum, drawn entirely client-side.