QR Code & Barcodes · page 8
QR payload builders, barcode structure tools, label planning and scan-test utilities.
271 tools in this category
Lists Aztec data capacities by layer count and error correction percentage.
Lists PDF417 data capacities by column count and error correction level.
Summarizes rectangular DataMatrix (DMRE) sizes for elongated label shapes.
Sets minimum module sizes for DataMatrix on small parts and direct part marks.
Explains MaxiCode modes and primary versus secondary messages for parcel routing.
Explains Pharmacode numeric ranges 3-131070 and single or double track options.
Covers human-readable interpretation rules below GS1 and retail symbols.
Encodes GTIN plus serial into SGTIN-96 EPC hex for RFID programs.
Builds AI 8003 returnable-asset codes from company prefix and asset serial.
Strips control characters, tabs, and non-encodable symbols before barcode generation.
Lists maximum character capacities across common 1D and 2D symbologies.
Compares retail, logistics, healthcare, and 2D symbologies on one reference page.
Lists AIM symbology identifiers returned by scanners and their meanings.
Explains when to assign EAN-13 versus UPC-A for retail products by region.
Explains when EAN-8 short codes are granted and their data constraints.
Explains how to assign GLNs for legal, functional, and physical locations.
Summarizes placement rules for retail package barcodes facing shelf scanners.
Computes the check digit for 17-digit SSCC bodies in logistics labeling.
Computes the 9th digit of US bank routing numbers with 371371 weights.
Validates IBAN structure and mod-97-1 checksums per country rules.
Computes ISIN check digits after letter-to-number expansion.
Computes CUSIP check digits with the doubled-letter algorithm.
Computes Verhoeff dihedral check digits used in several national ID schemes.