Generate Code 39 barcodes for industrial and inventory use. Download as PNG or SVG — free!
Our free Code 39 barcode generator lets you create barcodes for industrial, manufacturing and inventory systems instantly. Just enter your value, customize height, width and colors, and download your barcode in seconds. No account, no sign up and no software required.
Whether you are a warehouse manager labeling stock, a manufacturer adding codes to parts, or a retailer printing barcodes for internal tracking — a Code 39 barcode eliminates manual errors. One scan and the encoded value is read instantly, with zero effort.
All barcodes are generated locally in your browser. Your data never leaves your device, ensuring complete privacy and security. You can generate unlimited barcodes, always free, with no expiry.
A Code 39 barcode is one of the oldest and most widely used barcode formats in industry. It supports uppercase letters (A–Z), numbers (0–9), and a limited set of special characters: - . $ / + % SPACE. Lowercase letters are automatically converted to uppercase, ensuring consistency across systems.
Code 39 is known as an “alphanumeric” barcode because it can encode both letters and numbers. This makes it ideal for part numbers, serial codes, employee IDs, and inventory tags. When scanned, the barcode reveals the exact value you encoded — whether text or numeric.
It is universally supported by barcode scanners, POS systems, logistics software and industrial equipment worldwide. Because of its simplicity and reliability, Code 39 remains a standard in manufacturing, defense, healthcare and retail environments.
Our generator supports custom colors, adjustable sizes and text display so you can match your brand identity and printing requirements perfectly.
A Code 39 barcode is one of the most practical tools for businesses and organizations. Here are the most popular and effective places to use it:
Print Code 39 barcodes on machine parts, tools or components for instant identification and tracking in factories.
Use barcodes on boxes, shelves and pallets to streamline warehouse management and reduce human error.
Place barcodes on parcels and shipping documents to track items across warehouses and delivery routes.
Embed Code 39 barcodes in staff ID cards for quick access control and attendance tracking.
Use barcodes for internal product codes, stock management and checkout systems — scanners read them instantly.
Embed barcodes in invoices, receipts or reports for instant verification and tracking.
Our tool supports Code 39, which is widely used in industry. Here is a clear comparison to help you choose the right format for your needs:
| Feature | ▥ Code 39 | ▤ Code 128 | UPC / EAN |
|---|---|---|---|
| Supports letters & numbers | ✅ Yes | ✅ Yes | ❌ Numbers only |
| Supports special characters | ✅ Limited | ✅ Full ASCII | ❌ No |
| Data density | ❌ Lower | ✅ High | ❌ Limited |
| Scanner compatibility | ✅ Universal | ✅ Universal | ✅ Universal |
| Best for industry | ✅ Yes | ✅ Yes | ❌ No |
| Best for retail | ❌ Less common | ✅ Yes | ✅ Yes |
Use Code 39 when you need simple, reliable barcodes for industrial or inventory use. Use Code 128 when you need high‑density encoding for logistics and retail. Use UPC/EAN for consumer product IDs in global retail systems.
Code 39 supports only uppercase letters, numbers and specific symbols. Always check your input before generating.
Set barcode height and width according to your printing needs. Larger sizes scan more reliably in warehouses.
Use dark bars on a light background. Low contrast barcodes are harder to scan, especially in industrial lighting.
Always scan your barcode with a reader or phone app before bulk printing to ensure accuracy.
Keep your PNG or SVG file safe. You can reuse it anytime without regenerating.
Code 39 is designed for manufacturing and inventory systems. Always print at high quality for reliable scanning.