Free Data Matrix Code Generator
Build ISO/IEC 16022 Data Matrix barcodes for healthcare UDI, manufacturing DPM, electronics labelling, and GS1 traceability. Renders client-side; bwip-js is lazy-loaded only when you pick this type.
- 79 QR Types
- Free Business Card Designer
- Printable WiFi Cards
- Batch CSV (500 codes)
- 50 Templates
- 26 Languages
This barcode format renders monochrome with foreground and background colours only. Templates, dot/eye shapes, gradients, frames, and centre logos apply to QR codes only and are hidden here.
Show 30 more templates
Save a style with the button above to keep your favourites here.
Or pick a built-in icon:
Show 108 more icons
Renders behind the QR at adjustable opacity. Auto-forces EC=H so the QR still scans through the photo.
Batch Generation
Upload a CSV to generate up to 500 QR codes in a single batch. Each row becomes its own QR — pick a template or override 21 properties on a per-row basis: colors, frames, dot/eye/eyeball styles, gradients, transparency, size, error correction, format, built-in logo, and more.
21 columns: type, data, filename, frametext, frame, template, fgcolor, bgcolor, size, ec, dotstyle, eyestyle, format, logo, gradient, g2, gtype, gangle, transparent, eyeball, eyecolor. Only type and data are required. Use | to separate fields inside data (e.g. ssid|password|WPA).
All 79 QR types supported, including URL, WiFi, vCard, TOTP, Swiss QR-bill, PIX, PromptPay, ZATCA, PayNow, Bitcoin + Lightning, and more. Download the sample CSV to see every column, all 50 templates, 11 frame styles, and 156 built-in logo icons in action.
1. Download the sample CSV · 2. Edit it in Google Sheets, Excel, Numbers, or any text editor · 3. Upload it here
Save the entire QR — type, all field values, style, frame, logo, business card design — as a single .qr.json file. Load it later to recreate everything in one click.
Enter content to generate your QR code
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What is Data Matrix?
Data Matrix is a square (or rectangular) 2D matrix barcode standardised as ISO/IEC 16022. It packs significantly more data per unit area than a 1D barcode, scans reliably down to ~3 mm sides, and tolerates damage thanks to Reed-Solomon error correction. It's the dominant 2D format outside of QR for industrial use.
Where Data Matrix is mandatory or dominant
- Healthcare UDI — FDA UDI and EU MDR require Data Matrix on most medical devices and packaging.
- Pharmaceutical packaging — FMD (EU Falsified Medicines Directive) mandates Data Matrix with GTIN, batch, expiry, serial.
- Electronics direct-part marking — laser-etched onto PCBs, semiconductor wafers, and connectors.
- Aerospace / automotive parts — mil-std 130, ISO 22742 supply-chain marking.
- Tobacco track-and-trace — EU TPD requires Data Matrix on every cigarette pack.
Limits
- Up to 2,335 alphanumeric or 3,116 numeric characters in the largest size.
- Smallest practical print size: ~3 mm side at 600 DPI.
- Error correction is fixed (Reed-Solomon ECC 200) — no user choice of EC level.
Note on styling
Data Matrix is not a QR code. The QR-style controls in our generator (eye styles, dot shapes, gradients, frames, centre logos) don't apply — they assume the QR finder/timing pattern. Foreground and background colours are still configurable.
Available in 26 Languages
Fully translated UI, native script rendering, and right-to-left support for Arabic and Urdu.
Frequently Asked Questions
Can I add a logo in the centre?
No — Data Matrix has no built-in error-correction headroom for logos. The whole symbol is data + ECC; covering any region risks an unscannable code.
What about GS1 Data Matrix?
GS1-formatted Data Matrix uses Application Identifiers ((01) for GTIN, (10) for lot, etc.) embedded in the data string. Paste your full GS1 element string (e.g. (01)09506000134352(10)ABC123(17)260101) into the Content field; the encoder is the same.
Why is my Data Matrix rectangular instead of square?
bwip-js auto-picks the optimal symbol shape from the ISO 16022 size matrix. Short payloads tend to be square; long payloads can fit better in rectangular variants. The scanner doesn't care.
Does this work for direct-part marking (DPM) inspection?
The generator outputs the symbol image. Whether your laser, dot-peen, or ink-jet equipment can mark it depends on your process. The data structure is correct.
Can I generate Data Matrix in batch?
Yes — use the batch CSV with type=datamatrix. The data column accepts any text. Output is monochrome; FG/BG colours apply to the live UI.
Why did you pick bwip-js instead of writing your own encoder?
Reed-Solomon ECC 200 + ISO 16022 symbol layout is a non-trivial 1500+ line implementation that's been independently verified across thousands of production deployments via bwip-js. Reinventing it would invite scanning bugs.
Will scanners that say 'QR code reader' read Data Matrix?
Most modern scanner apps (built-in iPhone Camera, Google Lens, ZXing-based apps, all enterprise scanners) read both. Strict 'QR-only' apps won't — check the app's spec.