Supported Barcode Symbologies

Which barcode types our tools generate, decode, inspect and convert to ZPL, and which data rules (GTIN check digit, GS1 syntax) are checked. Every entry is covered by automated tests.

Symbology	Generate	Decode	Quality check	Barcode → ZPL	Data rules checked
EAN-13	✓supported	✓supported	✓supported	✓supported	GTIN check digit
EAN-8	✓supported	✓supported	✓supported	✓supported	GTIN check digit
UPC-A	✓supported	✓supported	✓supported	✓supported	GTIN check digit
UPC-E	✓supported	✓supported	✓supported	–not supported	GTIN check digit
Code 128	✓supported	✓supported	✓supported	✓supported
GS1-128	✓supported	✓supported	✓supported	✓supported	GS1 syntax: AIs, lengths, check digits, dates
Code 39	✓supported	✓supported	✓supported	✓supported
Code 93	✓supported	✓supported	✓supported	✓supported
ITF-14	✓supported	✓supported	✓supported	–not supported	GTIN check digit
ITF	✓supported	✓supported	✓supported	✓supported
DataMatrix	✓supported	✓supported	✓supported	✓supported
GS1 DataMatrix	✓supported	✓supported	✓supported	✓supported	GS1 syntax: AIs, lengths, check digits, dates
QR Code	✓supported	✓supported	✓supported	✓supported
Micro QR	✓supported	✓supported	✓supported	–not supported
PDF417	✓supported	✓supported	✓supported	✓supported
Aztec	✓supported	✓supported	✓supported	✓supported

Notes

Each tick is backed by an automated test: every symbology is generated, rendered to an image and decoded again, and the Quality Inspector reports no problems on a clean image.
The decoder reports UPC-A and UPC-E as their 13-digit EAN equivalent (with a leading 0). The content is the same.
The decoder uses zxing-cpp and may also read other types it supports, such as Codabar or GS1 DataBar. Those are not tested here, so they are not listed.
The Quality Inspector is a heuristic based on the image, not an ISO/IEC 15415/15416 verification. Aztec has no quiet zone check because Aztec requires none.
Barcode → ZPL only lists symbologies with a verified ZPL command mapping. UPC-E, ITF-14 and Micro QR are not mapped yet.