Data Matrix
guides
Plain-English answers about Data Matrix codes: how much they hold, how big to print them, GS1 data and scanning. Every guide links to the free tool it supports.
Plain-English answers about sizes, printing, GS1 and scanning, each linked to the free tool it supports.
New to Data Matrix? Start here
- Know what it is The squares, the L-shaped edge and where Data Matrix is used. What is a Data Matrix code?
- Pick the right code When Data Matrix beats a QR code, and when it does not. Data Matrix vs QR code
- Understand ECC 200 The version every modern code uses, and its error correction. Data Matrix ECC 200, explained
Sizes and printing
How much fits, how big to print, and sample codes to test with.
- Data Matrix sizes and capacity chart Every square, rectangular and DMRE size with how many digits, letters and bytes it holds. Read guide
- Data Matrix quiet zone and print size How much blank space to leave and how big to print for your printer and scanner. Read guide
- Data Matrix code examples Real sample codes to scan or download, plus a printable scanner test sheet. Read guide
- Data Matrix font: what actually works Why a font alone cannot make a Data Matrix, and the simpler ways to get codes from Excel or Word. Read guide
GS1 and regulated uses
GTIN, batch, expiry and serial data in the format retailers and healthcare expect.
Reading and troubleshooting
Scanning with a phone or a 2D scanner, and what to check when a code will not read.
Tools
Free, in your browser, no sign-up.
- Data Matrix code generator One code from your text or identifier: PNG, SVG or a true-size PDF.
- Bulk Data Matrix generator (CSV / Excel) Paste or import a list, add copies or serial numbers, download a ZIP or a labels PDF.
- GS1 DataMatrix generator A guided form for GTIN, batch, expiry and serial fields, with check digits and FNC1 done for you.
- Rectangular Data Matrix generator Every rectangular ECC 200 size, plus the newer DMRE sizes clearly labeled.
- Data Matrix labels Print codes on label sheets and thermal rolls at true size, with a printer test page.
- Data Matrix reader Decode a Data Matrix from an image or your camera. Nothing is uploaded.
- Free Data Matrix API Get an SVG or PNG for one value from a URL or a JSON request. Free, no key.