Can Code 128 encode letters?

Yes. Unlike EAN/UPC, Code 128 supports letters and symbols, so SKUs and tracking IDs work well.

Are barcodes uploaded to a server?

No. Mewix draws and reads barcodes in your browser. Nothing is uploaded.

QR code vs barcode — when to use which?

Use a 1D barcode for retail SKUs and scanners that expect EAN/UPC/Code128. Use a QR code for URLs, WiFi, contacts, and phone camera scanning.

Can I download as PNG, JPG, SVG, or PDF?

Yes. Generators export PNG and high-quality JPG for photos and forms, SVG for design tools, a tight PDF of the code alone, and a print PDF centered on A4 or Letter.

Are my QR codes uploaded to a server?

No. Generation and scanning run entirely in your browser on Mewix. Files and payloads never leave your device.

Code 128 Barcode Generator

High-density alphanumeric barcode used for shipping, logistics, and inventory. Download PNG, SVG, or print-ready PDF — private, no upload.

Format: Code 128. Letters, numbers, and most ASCII characters.

ValueLetters, numbers, and most ASCII characters.

Bar colorBackgroundHeight (80)Bar width (2)

Show human-readable text

Print paper

How to generate a Code 128 barcode

Pick a barcode type. Choose EAN-13, UPC-A, Code 128, Code 39, or another supported format.
Enter the value. Type digits or text that match the format rules shown on the page.
Download. Export PNG, SVG, tight PDF, or a centered print sheet PDF.

Need another format? Open the barcode generator hub or scan codes with the barcode scanner.

Frequently asked questions

Code 128 is a high-density linear barcode that encodes the full ASCII set. It is common on shipping labels, warehouse labels, and inventory tags.