Code 128 Barcode Generator
Encode any text as a Code 128 barcode.
Code 128 is a high-density barcode that encodes the full ASCII character set — letters, digits and symbols. Type any value and generate it instantly, locally in your browser.
Enter a value to generate the barcode.
Your input is processed locally in your browser and never uploaded.
How it works
- 1 Type any text, numbers or symbols.
- 2 Customize colors and size.
- 3 Download a PNG or SVG.
Common use cases
- Encode SKUs, IDs or serial numbers.
- Label shipping and logistics items.
- Track assets and inventory.
- Create alphanumeric barcodes.
Frequently asked questions
Is my input sent to a server?
No. The barcode is generated entirely in your browser — your input is never uploaded, stored or logged.
What can Code 128 encode?
All 128 ASCII characters: uppercase and lowercase letters, digits 0–9 and common symbols. It's compact and widely supported.
Is there a length limit?
There's no fixed limit, but very long values produce wide barcodes that are harder to scan. Keep it reasonable.
Is it really free?
Yes — free, with no signup, no watermark and no limits.