Barcode Generator - Free Online Tool

★★★★½ 4.5 (307 ratings)

🔒 Client-side — Your data never leaves your browser ✅ 100% Free — No signup, no limits ⚡ Instant — No server processing

📋 How to Use

1. Enter Content — Enter the text or number to encode
2. Select Format — Select barcode format (Code128/EAN-13/UPC-A, etc.)
3. Adjust Settings — Adjust barcode size and colors
4. Download — Click download to save as PNG or SVG

Code128 is a high-density barcode supporting all 128 ASCII characters, ideal for logistics and warehousing. EAN-13 is a 13-digit international product barcode standard widely used on retail packaging. Code128 is more flexible; EAN-13 is more standardized.

Barcodes are widely used for: 1) Retail products (UPC/EAN barcodes); 2) Logistics and warehouse management (Code128); 3) Book publishing (ISBN barcodes); 4) Healthcare (drug traceability); 5) Ticketing and membership card systems.

Yes, generated barcodes comply with international standards and can be correctly read by any standard barcode scanner or mobile scanning app. We recommend printing at 300+ DPI for optimal scanning results.

Code128 format supports all 128 ASCII characters but does not directly support Chinese characters. Use QR codes for Chinese text. EAN-13 and UPC-A only support digits. For non-ASCII characters, choose Code128 Auto mode.