# barcodegen.net

> Free online barcode generator supporting 20+ barcode formats. No signup, no watermark, no cost. Generate barcodes in real-time directly in your browser, with bulk generation and multiple export formats.

barcodegen.net is a client-side web application built with Next.js. All barcode rendering happens in the browser using JsBarcode (1D formats) and dedicated libraries for 2D formats. Users type values, select a format, and barcodes are generated in real-time. Multiple values (one per line) produce multiple barcodes, downloadable as a ZIP archive. Barcodes can be exported as PNG, JPG, GIF, or SVG.

## Core Features

- Real-time barcode generation (no server round-trips)
- Bulk generation: enter multiple values, one per line
- Export formats: PNG, JPG, GIF, SVG
- Bulk download as ZIP archive
- Customizable size, height, margin, foreground/background colors
- Optional human-readable text below barcode
- Shareable page URLs (with pre-loaded data via `?data=` query param)
- Direct barcode image API: `/api/barcode/{format}/{value}`
- CSV import for batch input
- Print layout support
- Barcode Scanner tool (separate page)
- Barcode Label Print tool (separate page)
- Available in 11 languages: English, Chinese (zh), Japanese (ja), German (de), French (fr), Spanish (es), Italian (it), Dutch (nl), Swedish (sv), Korean (ko), Russian (ru)

## Supported Barcode Formats

### Code 128
- Code 128 (auto subset) — `/Code128`
- Code 128A (uppercase + control chars) — `/Code128A`
- Code 128B (full ASCII) — `/Code128B`
- Code 128C (numeric pairs, high density) — `/Code128C`
- GS1-128 (supply chain, supports Application Identifiers) — `/gs1-128`

### EAN / UPC
- EAN-13 (global retail standard) — `/Ean13`
- EAN-8 (compact retail) — `/Ean8`
- EAN-5 (supplemental, e.g. book pricing) — `/Ean5`
- EAN-2 (supplemental, issue number) — `/Ean2`
- UPC-A (North American retail) — `/Upc`
- UPC-E (compressed UPC, small packages) — `/UpcE`

### 2D Barcodes
- QR Code — `/Qrcode`
- Data Matrix (industrial, high density) — `/Datamatrix`
- PDF417 (IDs, logistics, high capacity) — `/Pdf417`
- Aztec Code — `/Azteccode`

### Code 39
- Code 39 — `/Code39`
- Code 39 Extended — `/Code39ext`

### ITF
- ITF (Interleaved 2 of 5) — `/Itf`
- ITF-14 (shipping containers, GTIN-14) — `/Itf14`

### MSI Plessey
- MSI Plessey Mod 10 — `/Msi10`
- MSI Plessey Mod 11 — `/Msi11`
- MSI Plessey Mod 1010 — `/Msi1010`
- MSI Plessey Mod 1110 — `/Msi1110`

### Other 1D Formats
- Pharmacode — `/Pharmacode`
- Codabar — `/Codabar`

### GS1 DataBar
- GS1 DataBar Omnidirectional — `/Databaromni`
- GS1 DataBar Limited — `/Databarlimited`
- GS1 DataBar Expanded — `/Databarexpanded`
- GS1 DataBar Stacked — `/Databarstacked`

### Publishing
- ISBN (books) — `/Isbn`
- ISMN (sheet music) — `/Ismn`
- ISSN (periodicals/journals) — `/Issn`

## Key URLs

- Homepage / Generator: https://www.barcodegen.net/
- Barcode Scanner: https://www.barcodegen.net/barcode-scanner
- Label Print: https://www.barcodegen.net/barcode-label-print
- Barcode Image API: https://www.barcodegen.net/api/barcode/{format}/{value}
- Terms of Service: https://www.barcodegen.net/terms
- Privacy Policy: https://www.barcodegen.net/privacy-policy

## Full Documentation

- https://www.barcodegen.net/llms-full.txt