Barcode Generator

Generate barcode images from text input. Supports Code 128, EAN-13, UPC-A, Code 39, ITF-14, and Data Matrix formats.

API Endpoint

POST /api/v1/tools/barcode-generate

Accepts an application/json body (not multipart). The barcode is generated from the provided text, not from an uploaded file.

Parameters

Parameter	Type	Required	Default	Description
text	string	Yes	-	Text to encode in the barcode (1-256 characters)
type	string	No	"code128"	Barcode format: code128, ean13, upca, code39, itf14, datamatrix
scale	integer	No	3	Image scale factor (1-8)
includeText	boolean	No	true	Whether to render the text below the barcode

Example Request

curl -X POST http://localhost:1349/api/v1/tools/barcode-generate \
  -H "Authorization: Bearer si_your-api-key" \
  -H "Content-Type: application/json" \
  -d '{"text": "5901234123457", "type": "ean13", "scale": 4}'

Example Response

{
  "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/barcode.png",
  "originalSize": 0,
  "processedSize": 4520
}

Notes

• Unlike most tools, this endpoint accepts a JSON body, not multipart form data, since barcodes are generated from text rather than an uploaded file.
• EAN-13 requires exactly 12 or 13 digits. UPC-A requires exactly 11 or 12 digits. If a check digit is omitted, it is calculated automatically.
• Code 128 is the most flexible format and supports the full ASCII character set.
• Data Matrix produces a 2D barcode suitable for encoding longer strings in a compact square.