Barcode Generator

Barcode Generator:

• Creates various barcode formats for data encoding
• Supports retail and industrial barcode standards
• Validates input format for each barcode type
• Provides format-specific information

Supported Formats:

• CODE128: Full ASCII support (0-127 characters)
• EAN-13: 13 digits, retail products worldwide
• UPC-A: 12 digits, North American retail
• CODE39: Uppercase letters, digits, limited symbols
• EAN8: 8 digits, compact retail format

Format Specifications:

• CODE128: Most versatile, encodes any ASCII character
• EAN-13: Includes country code and check digit
• UPC-A: US standard, 6-digit manufacturer + 6-digit product
• CODE39: Industrial standard, alphanumeric with start/stop
• EAN8: Shorter version of EAN-13 for small packages

Validation Rules:

• EAN-13: Must be 12-13 digits (auto-pads with zeros)
• UPC-A: Must be 11-12 digits (auto-pads with zeros)
• EAN8: Must be 7-8 digits (auto-pads with zeros)
• CODE39: Uppercase letters, digits, and -.$/+%
• CODE128: Any ASCII character (0-127)

Applications:

• Retail: Product labeling and inventory management
• Shipping: Package tracking and logistics
• Manufacturing: Part identification and quality control
• Healthcare: Patient identification and medication tracking

Technical Details:

• Barcodes encode data using patterns of bars and spaces
• Each format has specific encoding rules and check digits
• Scanners decode patterns back to original data
• Real implementation would generate actual barcode images

Barcode Types:

• 1D Barcodes: Linear codes with varying bar widths
• 2D Barcodes: Matrix codes (QR codes, Data Matrix)
• Stacked Barcodes: Multiple rows of linear codes
• Composite Barcodes: Combined 1D and 2D codes

Implementation Note:

• This is a simulation showing barcode patterns
• Real barcodes would generate scannable images
• Check digits are calculated automatically
• Format validation ensures proper encoding

Industry Standards:

• GS1: Global standards for retail barcodes
• AIM: Automatic Identification Manufacturers
• ISO: International Organization for Standardization
• ANSI: American National Standards Institute

Best Practices:

• Use appropriate format for your application
• Ensure data meets format requirements
• Test barcode scanners for compatibility
• Consider printing quality and size requirements