Barcode generator
Create retail, logistics and 2D barcodes with automatic check-digit validation and print-ready vector output.
Barcode format
Retail
GS1 supply chain
Internal & industrial
2D codes
QR family (small spaces)
13 digits used on retail products worldwide. Enter 12 digits and we calculate the check digit.
Value
Example: 4006381333931
This tool draws barcodes for numbers you already own. Retail GTINs (EAN/UPC) must be licensed from GS1 — we don't issue product numbers.
3. Design
Colors
Size & text
Need hundreds of codes? Use batch & label printing →
Which code should I use?
Industry uses different code systems depending on the job and the equipment. QR is one kind of 2D code — here is how the main families compare.
2D codes
- Data Matrix
Packs lots of data into a tiny area on parts, medical devices and electronics; widely used for Direct Part Marking (DPM) engraved on the product.
- PDF417
Rectangular stacked code on shipping labels, ID cards and licences.
- Aztec
Found on tickets and boarding passes where print space is limited; no quiet zone needed.
- MaxiCode
Designed for high-speed parcel sorting in logistics.
- Micro QR · rMQR
QR variants for very small (Micro QR) or long, narrow (rMQR) spaces.
- GS1 DataMatrix · GS1 QR
Combine the product number with traceability data such as lot, expiry date and serial number.
1D codes & industrial identification
- GS1-128
Logistics cartons and pallets: product ID, lot, quantity and dates in one barcode.
- ITF-14
Printed on corrugated cases to identify the packaging unit (GTIN-14).
- GS1 DataBar
Fresh food and small items: product ID plus extra data like weight or best-before.
- Code 39 · Code 128
Part numbers, asset tags and inventory labels for internal use.
- Interleaved 2 of 5 (ITF)
Numeric data on logistics and packaging.
RFID, NFC & tags (separate hardware)
Strictly speaking these are not printed barcodes, but they are compared with them on site. They need dedicated readers or tags and are handled separately from this tool (NFC tag reading is available on supported Android browsers).
- RFID
Reads tags by radio, many items at once and without line of sight — access control, inventory and logistics tracking.
- NFC
Tap-to-read tags for product information, authentication and device setup.
- BLE beacons
Broadcast location or equipment information over short-range radio instead of being scanned.
GS1 codes must follow GS1 data rules and use identification numbers (GTIN, SSCC, GLN) licensed to your company by your GS1 member organisation. This tool validates the data format; it does not issue or register numbers.
Professional barcodes in seconds
14 symbologies
EAN-13/8, UPC-A/E, ISBN, Code 128, Code 39, ITF, ITF-14, Codabar, GS1-128, Data Matrix, PDF417 and Aztec.
Check digits handled
Leave out the last digit and we calculate it; enter a wrong one and we tell you the correct value.
Exact sizing
Set bar height and print width in millimetres; export vector PDF/SVG for labels and packaging.
Verified output
Each barcode is decoded by our scanner engine before download.
Frequently asked questions
Can I get a barcode number for my product here?
No. Retail numbers (GTIN/EAN/UPC) must be licensed from GS1 in your country. This tool draws barcodes for numbers you already own and validates them.
Which barcode should I use for inventory?
Code 128 is the most common choice: it's compact, supports letters and digits, and every scanner reads it.
What is a check digit?
The last digit of EAN/UPC codes is calculated from the others so scanners can detect misreads. We compute and verify it automatically.