Free DotCode barcode generator
Create a scannable DotCode symbol right here in your browser. Tobacco and high-speed production marking, printed as dots by inkjet at line speed. Download it as PNG, SVG or PDF — no signup, no watermark, and nothing you type leaves your computer.
DotCode settings
#000000#FFFFFFPreview
DotCode specification
| Type | 2D matrix / stacked code |
|---|---|
| Character set | full ASCII and binary |
| Length | variable |
| Check digit | Reed-Solomon error correction |
| Standard | ISO/IEC 21471 |
| GS1 symbology | No |
Where DotCode is used
Tobacco and high-speed production marking, printed as dots by inkjet at line speed.
Printing DotCode on a thermal printer
A generated image is fine for a one-off. For a production run you want the barcode rendered by the printer at its own resolution, sized in whole dots so the narrow bar lands on an exact dot boundary. LabelInn does that on Zebra, TSC, Toshiba and Epson hardware, and it can drive one label per row straight from your data.
Frequently asked questions
Is this DotCode generator really free?
Yes. The generator runs entirely in your browser, there is no signup, and the downloads carry no watermark.
Does my data get uploaded anywhere?
No. The symbol is encoded locally in your browser. Nothing you type is sent to a server.
What can DotCode encode?
full ASCII and binary. Length: variable. Check digit: Reed-Solomon error correction.
Can I print DotCode labels in bulk from a spreadsheet?
Not from this page — this tool makes one symbol at a time. LabelInn binds a spreadsheet column to the barcode field and prints one label per row on a thermal printer.
Printing DotCode labels in production?
This generator makes one symbol. When you need a batch — one label per row from a spreadsheet, a database or your API — LabelInn renders DotCode natively on the printer at its own resolution.
Download free Print labels from an Excel file