Barcode Generator – Generate Barcode Online (Free Tool)
Free online Barcode Generator tool to create barcodes for products and inventory. Generate Code 128 and other barcode formats. All generation happens locally in your browser.
Example Output
Standard retail barcode ready to drop into a product label or label-printer template.
Rendered with valid check digit and clear text label
What is Barcode Generator?
Barcode Generator renders Code 128, EAN-13, and Code 39 barcodes from your text. Code 128 is the dense choice for arbitrary ASCII (SKUs, IDs); EAN-13 is the retail standard for products; Code 39 is the simple uppercase-only format common on shipping labels. Output is a crisp PNG you can paste into a label sheet or print directly.
Why use this tool?
- No telemetry, no tracking pixels, no third-party scripts
- Open-and-go: bookmark the page once and never look for an alternative
- Instant results — no waiting on a server or upload progress bar
- Designed for everyday quick tasks — open the page, get the answer, move on
- No upsell to a paid plan: every feature is free forever
How to use
- Type the text/number you want to encode
- Pick the format: Code 128 (full ASCII), EAN-13 (12-13 digits), or Code 39 (uppercase + few symbols)
- Preview the rendered barcode and download as PNG
- For EAN-13 with 12 digits, the check digit is computed and appended automatically
Examples
Print SKU labels
Generate Code 128 from your internal SKU "PRD-2024-A1" and paste the PNG into a label-printer template.
EAN-13 with auto check digit
Enter 12 digits and the tool appends the correct check digit to produce a scannable 13-digit barcode.
Asset tags with Code 39
Code 39 is widely supported by basic scanners and only needs A-Z 0-9 + few symbols. Ideal for low-density asset tags.
Common use cases
- Generating product or SKU barcodes for small retail/inventory
- Creating EAN-13 barcodes for product catalogues and POS systems
- Printing asset tags for equipment tracking
- Embedding barcodes in shipping labels, receipts, or warehouse pick lists
Troubleshooting
- "Code 39 doesn't support character" error.
- Code 39 only encodes 0-9, A-Z (uppercase), space, and "-.$/+%". Use Code 128 instead for lowercase or extended characters.
- "EAN-13 requires 12 or 13 digits".
- Only digits, exactly 12 (auto-compute) or 13 (we validate the check digit). Hyphens and spaces are not allowed in the input.
- Scanner reads my Code 128 but not my Code 39.
- Make sure the scanner is configured to read Code 39. Some retail scanners only enable EAN/UPC and Code 128 by default.
Frequently Asked Questions
Type the data you want to encode (product number, SKU, ID, etc.), choose a barcode format, and the tool renders a scannable barcode. Download as PNG or SVG.
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