Barcode Generator
Create professional barcodes in any standard format. Download as high-quality SVG or PNG instantly.
Enter a value to generate a barcode
Barcodes are generated in your browser — no data is uploaded
How to use Barcode Generator
Generate standard 1D barcodes for retail, inventory, shipping, and identification purposes — entirely in your browser. Supports Code 128, Code 39, EAN-13, EAN-8, UPC-A, UPC-E, ITF, and more. Download as SVG for crisp printing at any size or as PNG for digital use.
- Select the barcode format (Code 128 for general text, EAN-13 for retail products, etc.).
- Enter the data to encode — numeric only for EAN/UPC formats.
- Adjust the barcode height, bar width, and whether to display the human-readable number.
- Preview the barcode and verify the dimensions meet your label requirements.
- Download as SVG or PNG and embed in your label design or inventory system.
Your data never leaves your device — 100% private processing.
Barcode format selection guide
Code 128 is the most versatile 1D barcode, supporting all 128 ASCII characters and used for shipping labels, ID cards, and industrial applications. EAN-13 and EAN-8 are retail product barcodes (ISBN books use EAN-13 with a 978/979 prefix). UPC-A and UPC-E are North American retail standards. Code 39 is used in automotive, military, and government contexts for its ease of reading. ITF-14 (Interleaved 2 of 5) is used on shipping cartons. For new applications, Code 128 or QR codes are recommended over older formats.
| Format | Characters | Best use |
|---|---|---|
| Code 128 | All ASCII | Shipping, ID, general |
| EAN-13 | 12 digits + check | Retail products, books (ISBN) |
| UPC-A | 11 digits + check | North American retail |
| Code 39 | A-Z, 0-9, symbols | Automotive, military, healthcare |
| ITF-14 | 13 digits + check | Shipping cartons, logistics |
Print size and scanning requirements
Barcode scanners need a minimum quiet zone of 10 × the narrowest bar width on each side. Standard EAN-13 barcodes are 37.29 mm × 25.93 mm — print no smaller than 80% of this size for supermarket scanners. Code 128 barcodes must have a minimum bar height of 15% of the symbol length or 6.35 mm, whichever is greater. Always download as SVG for print production to ensure no rasterization artifacts, and test with a handheld scanner before committing to a large print run.
Glossary
- Check digit
- A digit appended to a barcode that is mathematically derived from the other digits, used to detect scanning errors.
- Quiet zone
- The blank white space on both sides of a barcode required for scanners to determine the barcode boundary.
- Module width (X dimension)
- The width of the narrowest bar or space in a barcode, determining the physical size of the symbol.
- GS1
- The global organization that administers EAN and UPC barcode standards used in retail commerce worldwide.
Related reading
Frequently Asked Questions
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Why use Barcode Generator?
- High-resolution QR codes ready for print at any size
- Customisable colours and error-correction levels
- Download as PNG or SVG for web and print use
- Encode URLs, contact cards, text, Wi-Fi credentials and more
Common use cases
- Create a QR code for a restaurant menu
- Generate a vCard QR code for business cards
- Add a Wi-Fi QR code to a guest welcome booklet
- Share event registration links via QR poster
- Create product tracking labels with barcode generation
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