Barcode Generator
Create barcodes in CODE128, EAN‑13, UPC or CODE39 format. Download as SVG or PNG, with automatic check‑digit calculation.
How to Use Barcode Generator
- Choose the barcode format. Select CODE128 for general text and inventory, EAN‑13 for retail products, or UPC for US point‑of‑sale. The format determines what data you can enter and the barcode structure.
- Enter your data. For CODE128, type any text or number. For EAN‑13, enter a 12‑digit number (the 13th check digit is auto‑calculated). For UPC, enter an 11‑digit number.
- Click Generate. A scalable barcode image is rendered instantly using an SVG or canvas. You can preview it at different sizes.
- Download the barcode. Save it as a PNG for printing on labels, or as an SVG for high‑resolution packaging design. The image is ready for commercial use.
Benefits of Barcode Generator
- Supports the three most commonly used barcode standards — CODE128, EAN‑13 and UPC — covering everything from warehouse labels to retail packaging.
- Auto‑computes check digits for EAN‑13 and UPC, ensuring the generated barcode is scannable and standard‑compliant.
- Generates high‑quality SVG output that scales to any print size without pixelation, suitable for professional packaging.
- Runs offline in your browser; product codes and text data are never sent to any server.
Frequently Asked Questions
What barcode format should I use for retail products in India?
EAN‑13 is the standard for retail products globally, including India. You’ll need a unique 12‑digit GS1 prefix to create valid product barcodes. The generator handles the final check digit automatically.
Can I generate a QR code with this tool?
No, this tool generates linear barcodes only. For QR codes, use Toolzo’s QR Code Generator or the WiFi QR Generator, which are designed for 2D matrix codes.
What is the check digit and why is it important?
The check digit is the last number in a barcode, calculated from the preceding digits. It ensures the barcode scans correctly and prevents data entry errors. The calculator computes it automatically.
Is Barcode Generator free and private?
Yes — it is 100% free, needs no sign‑up, and everything runs in your browser; your data never leaves your device.