Barcode & QR Utilities
Validate GTIN codes, calculate check digits, convert identifiers and build printable QR/barcode sheets locally. 25 tools are currently live in this section.
GS1 Check Digit Calculator
Calculate the GS1 modulo-10 check digit for a numeric identifier.
Open tool →EAN-13 Check Digit Calculator
Calculate the check digit for a 12-digit EAN-13 payload.
Open tool →EAN-13 Validator
Validate the length and check digit of an EAN-13 code.
Open tool →EAN-8 Check Digit Calculator
Calculate the check digit for a 7-digit EAN-8 payload.
Open tool →EAN-8 Validator
Validate an 8-digit EAN-8 code.
Open tool →UPC-A Check Digit Calculator
Calculate the check digit for an 11-digit UPC-A payload.
Open tool →UPC-A Validator
Validate a 12-digit UPC-A code.
Open tool →GTIN-14 Check Digit Calculator
Calculate the check digit for a 13-digit GTIN-14 payload.
Open tool →GTIN-14 Validator
Validate a 14-digit GTIN.
Open tool →GTIN Validator
Validate a GTIN-8, GTIN-12, GTIN-13 or GTIN-14 identifier.
Open tool →ISBN-13 Validator
Validate an ISBN-13 check digit and 978/979 prefix.
Open tool →UPC-A to EAN-13 Converter
Convert a valid 12-digit UPC-A into its 13-digit EAN representation.
Open tool →EAN-13 to UPC-A Converter
Convert an EAN-13 beginning with zero into UPC-A.
Open tool →GTIN Length Detector
Identify whether a numeric code has a standard GTIN length.
Open tool →Numeric Barcode Sanitizer
Remove spaces, hyphens and non-digit characters from a barcode value.
Open tool →ITF Even-Digit Validator
Check whether a numeric value can be encoded directly as Interleaved 2 of 5.
Open tool →Barcode Module Width Calculator
Calculate module width from total printable width and module count.
Open tool →Barcode Physical Width Calculator
Calculate physical barcode width from module count and X-dimension.
Open tool →Barcode DPI Pixel Calculator
Calculate pixel width needed to print a barcode at a target millimeter width and DPI.
Open tool →Barcode Quiet Zone Calculator
Calculate a quiet-zone size from X-dimension and module count.
Open tool →EAN-13 Display Formatter
Format a 13-digit EAN into readable groups without changing its digits.
Open tool →Batch GS1 Check Digit Calculator
Calculate GS1 check digits for multiple numeric lines locally.
Open tool →Batch EAN-13 Label Sheet
Generate a printable PNG sheet from multiple 12/13-digit EAN values.
Open tool →Batch QR Code Sheet
Generate a local PNG sheet containing multiple QR codes.
Open tool →QR Version & Module Analyzer
Generate the QR matrix locally and report its QR version, module count and payload bytes.
Open tool →About Barcode & QR Utilities
Validate GTIN codes, calculate check digits, convert identifiers and build printable QR/barcode sheets locally. MediaZuno groups closely related utilities together so you can move between tasks without hunting across different websites.