Bulk Barcode Generator — CSV Preview
Paste your CSV data to validate each barcode value before committing to a print run. The tool checks barcode type, value length, allowed characters, and check digits — instantly, in your browser. Fix errors in your spreadsheet, then use Batch Label Studio Pro to generate and export all labels in one batch.
Paste CSV data
Required columns: barcode_type and value. Optional: label. Supported types: code128, code39, upca, ean13, qr.
| Row | Type | Value | Label | Status |
|---|---|---|---|---|
| 1 | code128 | ITEM-2024-001 | Box A | ✓ Valid |
| 2 | code128 | ITEM-2024-002 | Box B | ✓ Valid |
| 3 | code128 | ITEM-2024-003 | Box C | ✓ Valid |
| 4 | upca | 03600029145 | Product D | ✓ Valid |
| 5 | ean13 | 400638133393 | Product E | ✓ Valid |
To generate a barcode for a single valid row, copy its value and use the Free Barcode Generator.
CSV format reference
Your CSV must have a header row as the first line. The tool recognises these column names automatically (case-insensitive):
| Column name(s) | Required | Accepted values |
|---|---|---|
| barcode_type, type, format | Yes | code128, code39, upca, ean13, qr |
| value, barcode_value, barcode, data | Yes | The value to encode |
| label, label_name, name, title | No | Human-readable label text |
What the validator checks
- Code 128: Value contains only standard printable ASCII characters (codes 32–126).
- Code 39: Value contains only uppercase letters (A–Z), digits (0–9), and allowed symbols: - . $ / + %
- UPC-A: Value is exactly 11 digits (check digit will be calculated) or 12 digits (check digit is validated).
- EAN-13: Value is exactly 12 digits (check digit will be calculated) or 13 digits (check digit is validated).
- QR Code: Any non-empty string is accepted. Very long strings produce denser QR patterns that may be harder to scan at small print sizes.
Related Tools
Frequently Asked Questions
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