Data Matrix Generator — turn text, URLs, or contacts into a square 2D barcode instantly
This tool converts whatever you type into a standards-compliant Data Matrix barcode (ISO/IEC 16022 ECC200). It is handy for part labels, small printed tags, or packing a contact card into a tight space. Everything is generated inside your browser and never sent to a server.
How to use
- Pick an input mode from the tabs at the top: Text, URL, or Contact.
- Type your content and the barcode redraws automatically after about a quarter second.
- In Contact mode, fill in name, phone, and email to build a MECARD string automatically.
- Press Download PNG to save the image.
Features & tips
- Symbols include Reed-Solomon error correction, so real scanners can read them.
- The size is chosen automatically, from 10x10 up to 48x48, to fit your content.
- Digits are packed two at a time, so numeric data fits more compactly than plain text.
- When printing, keep the blank margin (quiet zone) around the code intact for reliable scanning.
FAQ
Q. How is this different from a QR code? A. Data Matrix excels at small footprints and short data, which is why it dominates part and medical labeling.
Q. Is my data uploaded anywhere? A. No. Encoding runs entirely in your browser, so nothing you type leaves your device.
