Barcode Generator - Create Barcodes Instantly
Generate Code128, EAN-13, UPC-A, Code39 and more barcode formats for products, inventory, and labels
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Generated Barcode
Enter data above and click "Generate Barcode" to create your barcode
Popular Barcode Formats
Code 128
Most versatile format for alphanumeric data. Used in shipping and logistics.
EAN-13 / UPC-A
Standard retail barcodes found on products worldwide.
Code 39
Industrial standard for inventory and asset tracking.
Codabar
Used in libraries, blood banks, and FedEx airbills.
About This Barcode Generator
This tool draws seven linear (1D) barcode symbologies right in your browser — no account, no upload, no server round trip. Select a format, type your data, and the input is validated against that symbology's character rules before anything is rendered: Code 39 accepts uppercase letters and a handful of symbols, EAN and UPC accept digits only, and Codabar must start and end with a letter from A to D. For the retail formats, the mandatory check digit is computed automatically — enter the first 12 digits of an EAN-13 (or 11 of a UPC-A, or 7 of an EAN-8) and the final digit is appended for you.
You can tune bar width and height to fit your label stock and toggle the human-readable text underneath the bars. Download the result as a PNG (exported at double resolution for clean printing from documents) or as an SVG, which scales to any size without losing sharpness — the better choice when handing artwork to a print shop or label designer.
Which Format Should You Choose?
- Code 128 — the default for internal use: compact, supports letters, numbers, and symbols, and is standard in shipping and logistics
- EAN-13 / UPC-A — the retail codes scanned at supermarket checkouts worldwide
- Code 39 — an older industrial format still required by some legacy inventory systems
- ITF-14 — printed on corrugated shipping cartons to identify trade units
- Codabar — the classic choice for library cards and blood bank labels
Common Use Cases
- Inventory labels for stockroom bins, shelves, and parts drawers
- Asset tags for laptops, tools, and office equipment
- Membership and library cards keyed to an ID number
- Warehouse pick lists and carton labels
- Event badges that scanners can match to an attendee record
- Small-batch product labels for markets and pop-up shops
Frequently Asked Questions
Can I use a generated EAN-13 or UPC-A barcode to sell products in stores?
Only if the number itself is legitimately yours. Retail barcodes encode a GTIN, which must be licensed through GS1 so no two products share the same number. This generator renders any valid digits you give it, but it does not assign numbers — using a made-up code in real retail will clash with existing products.
What is the difference between EAN-13 and UPC-A?
They are close cousins. UPC-A holds 12 digits and originated in the United States and Canada, while EAN-13 holds 13 digits and is used internationally. A UPC-A code is effectively an EAN-13 with a leading zero, and modern point-of-sale scanners read both without issue.
What is a check digit and do I have to calculate it myself?
The check digit is the last digit of EAN and UPC codes, computed mathematically from the preceding digits so scanners can detect misreads. You do not need to work it out — enter 12 digits for EAN-13, 7 for EAN-8, or 11 for UPC-A and the tool appends the correct check digit automatically.
Should I download PNG or SVG?
Use SVG whenever the barcode will be professionally printed or resized, because vectors stay perfectly crisp at any dimension. PNG is more convenient for pasting into documents, spreadsheets, and web pages, and it is exported here at double resolution so it still prints cleanly at typical label sizes.
When should I use a QR code instead of a barcode?
Linear barcodes are ideal for short numeric or alphanumeric IDs read by laser scanners at checkouts and warehouses. If you need to encode a URL, contact details, or more than a few dozen characters — or expect people to scan with a phone camera — a QR code is the better fit.
Why does the tool reject my input?
Each symbology has strict character rules. EAN, UPC, and ITF-14 accept digits only and require an exact length; Code 39 allows uppercase letters, digits, and the symbols - . $ / + % and space; Codabar must begin and end with A, B, C, or D. The hint under the input field tells you exactly what the selected format expects.
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