The tiny 2D code used on electronics, instruments and small parts, readable even when very small or partly damaged. Any text; the code grows in steps as the text does.
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SVG, PNG at 600 dpi, PDF, label sheets
2 · Content · Data Matrix
Any text. Keep it short for a small symbol.
3 · Size and print
At 300 dpi each bar is 6 printer dots = 0.508 mm. The PNG uses exactly that.
4 · Download
SVG and PDF are vectors at the exact millimetre size shown. The PNG uses a whole number of printer dots per bar so nothing blurs. Generated in your browser; nothing is uploaded.
Data Matrix for small industrial labels read by dedicated scanners; QR for anything a phone should read.
Down to about 2.5 mm across on a laser marker; on a label printer keep each cell at least 0.25 mm, which the generator shows.
Some can, most cannot. Use QR for phones.
Other barcodes