Processing and privacy
Processing varies by tool. Check the instructions for local processing, server requests, external services and any file or request limits before entering sensitive information.
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Clear instructions
Find steps, examples and limitations below.
Use online
Open the tool in a supported web browser.
Free to use
No sign-up required. Tool-specific limits may apply.
How to use the Barcode Generator
Render supported barcode formats as PNG or SVG with size and color controls.
- 1 Enter Barcode value and choose Format.
- 2 Adjust Bar width, Height, Text size, Show text below and the bar and background colors.
- 3 Review any validation error, then Download PNG or SVG and test a real scan.
Example and practical tips
Choose CODE128 for a simple internal inventory label containing a short code.
Frequently asked questions
Does generating EAN or UPC assign a retail product number?
No. The tool draws a symbol; it does not register or assign globally recognized product identifiers.
Why is my value rejected?
Formats have specific length and character requirements, sometimes including check digits. Use a value valid for the selected format.
Practical guides
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How to Use Barcode Generator
Generate barcodes online: Code 128, EAN-13, UPC, Code 39 and more. Customize size and colors and download as PNG or SVG. Free barcode generator.
Report an issue
Something broken or not quite right? Tell us and we will look into it.