Free Online Barcode Generator — Code128, EAN-13, UPC-A
Create professional barcodes in the most popular formats: Code 128 (general purpose, supports all ASCII characters), EAN-13 (European Article Number, used for retail products worldwide), and UPC-A (Universal Product Code, used in North America). Customize bar width, height, and display text. Download as high-resolution PNG or scalable SVG for product labels, packaging, inventory management, and retail applications.
How to Use Barcode Generator
Input Your Data
Paste or type your input into the workspace above, or upload a target file directly.
Configure Settings
Select desired formatting options, conversion rules, or target units suited for your project.
Instant Processing
Execution completes in milliseconds right inside your browser memory with zero network latency.
Export & Copy
Use one-click copy to move the processed output to your clipboard or download files locally.
Key Highlights & Privacy Guarantee
Zero Server Storage
Your data is processed strictly in client-side RAM using WebAssembly and standard JavaScript APIs. No data packets or credentials are sent to our backend.
High-Speed Execution
By removing server round-trips, transformations occur in under a millisecond, optimizing Core Web Vitals and eliminating processing queues.
Free with Zero Limits
No subscription tiers, no hidden credit systems, and no registration walls. Run unlimited conversions and utilities whenever needed.
In-Depth Developer Guides
Frequently Asked Questions
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