Free Online Barcode Generator
Generate standard 1D barcodes in Code 128, EAN-13, UPC-A, and Code 39 formats-downloadable as high-resolution PNGs.
Enter your numeric or text string below, choose a barcode symbology, and download your barcode image instantly.
Enter Data
Enter any text or a URL to convert it into a Bar code. The generator calls your live API endpoint.
Bar Code Result
Your generated Bar code will appear here.
Supported Symbologies​
| Symbology | Data Type | Character Set | Primary Use Case |
|---|---|---|---|
| Code 128 | Alphanumeric | Full ASCII (A/B/C subsets) | Logistics, shipping labels, asset tags |
| EAN-13 | Numeric | Exactly 12 digits (13th check digit computed) | International retail products (GS1) |
| UPC-A | Numeric | Exactly 11 digits (12th check digit computed) | North American retail products |
| EAN-8 | Numeric | Exactly 7 digits (8th check digit computed) | Small packaging retail |
| Code 39 | Alphanumeric | Uppercase A–Z, 0–9, - . $ / + % SPACE | Industrial, automotive, defense |
| ITF-14 | Numeric | Exactly 13 digits (14th check digit computed) | Master shipping cartons |
GS1 Retail Notice
Barcodes generated here use standard GS1 encoding algorithms for testing and prototyping. Commercial retail products require a registered GS1 company prefix.
Technical Specifications & Limitations​
- Automatic Check Digits: For EAN-13, EAN-8, UPC-A, and ITF-14, enter the payload without the final check digit; the encoder calculates the modulo-10 checksum automatically.
- Case Sensitivity: Code 39 supports uppercase characters only. For mixed-case text, use Code 128.
- Output Format: Generated output is a 300 DPI PNG with human-readable text beneath the bars.
Developer API Available
Need to generate barcodes programmatically in your backend pipelines? Access endpoint documentation and rate limits.
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