Data Matrix Barcode Generator
Electronics parts, small items
Data Matrix
What is Data Matrix?2D Codes › Data Matrix
What is a Data Matrix barcode?
Data Matrix is a square 2D barcode that fits a lot of data into a very small space. It is used to mark electronic components, machine parts, medical devices and small packages. It can be printed on labels or marked directly on parts.
The code is a grid of dark and light squares with a solid L-shaped border that scanners use to find it. Built-in Reed-Solomon error correction lets it read even when part of the code is damaged. One code can hold up to 3,116 digits, 2,335 letters and digits, or 1,556 bytes.
What data can Data Matrix hold?
Any text, numbers or URL, up to 1,556 bytes. We warn you as you get close to the limit.
Recommended size
Leave a blank margin of at least one module (one square) on every side; more is safer. The right size depends on how much data you store and on your scanner, so test a print before a big run.
More 2D Codes barcodes
How to Create a Barcode in 3 Steps
Choose a barcode type
Select a category on the left (e.g. Linear Codes), then the exact type like Code-128.
Enter data & customise
Type your data — we check it live and add check digits. Adjust size, font and colors.
Download or print
Get PNG, JPG, SVG, PDF or EPS, or print a full sheet of labels in one click.
Why Use QRCodeChamp Barcode Generator
125+ barcode types
Every linear, 2D, GS1, postal, healthcare and payment code.
Live validation
Friendly errors with one-click fixes and automatic check digits.
Print-ready PDF
Exact mm sizes, label sheets (Avery, A4, 4×6 thermal).
Bulk barcodes
Paste a list or generate number sequences.
Choose the Type of Barcode You Need
Not sure which barcode to use? Start with what you need it for — we’ll pick the right type.
Frequently Asked Questions
A 2D imaging scanner or a scanner app on a phone. Scanners that only read 1D barcodes can’t read it.
Both are 2D codes. Data Matrix needs less space for small amounts of data and is common in industry, while QR Code is more common for links aimed at the public.
GS1 DataMatrix is the same symbol with a special start character and data in GS1 Application Identifiers. Use it when a GS1 or healthcare rule asks for it.
Yes. Put one value per line or generate a number sequence, then download them or print a label-sheet PDF.