Barcode Generator

This tool generates machine-readable barcodes and QR codes from input data using multiple symbologies such as Code 128, Code 39, EAN-13, UPC-A, and QR Code. It returns a vector SVG suitable for embedding in software, packaging, or QA assets.
Conceptually, the encoder maps the input string to a sequence of modules per the selected standard, applies optional checksums, and renders bars and spaces as scalable vector shapes. QR and Data Matrix use error correction; Code-128 uses subset selection; EAN-13 validates digit-only input.
Users include developers automating label generation, QA engineers validating scanning workflows, and product teams preparing packaging assets. Its differentiators are multi-symbology support, scalable SVG output without rasterization, and explicit validation rules for each standard.
Core features include adjustable module width, quiet zone, image height, and automatic size fitting. The tool emphasizes robust input validation, predictable output formatting, and easy integration via file export or API-like commands.