Calculate a GTIN check digit
Use a body-only value or compare the final digit of a complete GTIN with visible Modulo-10 steps.
Open calculatorComplete public tools
Barcode operations tools
Start with a working local tool. Each result explains the evidence it checks and the operational claims it cannot make.
Available now
Validate GTIN, UPC and EAN
Check characters, supported length and final digit while keeping ambiguous 13-digit meanings visible.
Open validatorProcess a CSV or TSV batch
Preview one identifier column, validate up to 10,000 local rows, filter evidence, and export safe reports.
Open bulk validatorGenerate a barcode asset
Render one of ten tested types, run a digital self-scan, and export sanitized SVG or PNG locally.
Open generatorBuild a barcode label sheet
Map manual or CSV values onto exact paper or thermal geometry, inspect fit, calibrate, and export locally.
Open label sheet generatorScan a barcode
Explicitly start a camera or choose an image, then inspect decoded text without auto-opening URLs.
Open scannerParse GS1 Application Identifiers
Inspect bracketed or scanner-form fields, FNC1 boundaries, formats, associations, and stable syntax errors.
Open AI parserBuild a GS1 Digital Link
Compose an HTTPS URI from GTIN qualifiers and attributes, then inspect JSON and a local 2D preview.
Open URI builderStructural evidence, not registry evidence
These tools do not issue numbers, confirm ownership, identify products, grade physical prints, certify symbols, or guarantee retailer acceptance. BarcodeOpsKit is not affiliated with GS1.