Barcode Generator

How to use it

1. Type or paste the value to encode.
2. Pick the format: CODE128 for arbitrary text, EAN-13 for 12-13 digit retail codes, UPC-A for 11-12 digits.
3. Click Generate. The barcode appears as an SVG with the value printed underneath.
4. Click Download PNG to save a white-background raster copy for documents and stickers.

Common use cases

• Asset and inventory labels - encode serial numbers or SKU codes for internal tracking sheets.
• Event and ticket codes - print a unique code per ticket from your own numbering scheme.
• Library and archive work - label boxes and folders so a handheld scanner can find them.
• Product mockups - place a plausible barcode on packaging designs before real codes are assigned.

Why it stays private

The barcode is drawn by a local rendering library inside your browser. Scanning and rasterizing happen on your device; the value you type is never transmitted, so internal codes and unreleased SKUs stay off the network.

FAQ

Q: Why was my value rejected? A: Each format has strict input rules. CODE128 accepts printable ASCII, EAN-13 wants exactly 12 or 13 digits, and UPC-A wants 11 or 12 digits. The tool checks the shape before drawing so you get a scannable result.

Q: Do I need to calculate the check digit? A: No. When you pass 12 digits to EAN-13 or 11 digits to UPC-A, the renderer computes and appends the check digit automatically. If you pass the full length, your last digit is kept as the check digit.

Q: Will real shops and scanners accept these codes? A: The encoding itself is standard, so any compatible scanner can read it. However, retail products sold through stores need officially registered GTIN numbers; use this tool for internal labels, mockups and non-retail purposes.