Barcode API

Produce 14 barcode types as PNG/SVG/PDF with GET /v1/barcodes. Parameters, colour, rotation and no-code usage.

GET /v1/barcodes produces a single barcode as an image. Because it works with a single endpoint and query parameters, it can be embedded in an <img src> tag; it also works in code-free environments such as Excel or Google Sheets.

Parameters

Parameter	Description	Default
`type`	Barcode type (code)	code128
`data`	Data to encode	the type's sample
`xdim`	Module width (1-10)	3
`height`	Height (linear barcodes)	automatic
`ec`	Error correction (2D: L/M/Q/H)	automatic
`quiet`	Quiet zone (module)	per type
`hrt`	Human-readable text (below/none)	below
`fg`	Foreground colour (RRGGBB)	000000
`bg`	Background (RRGGBB or transparent)	FFFFFF
`rot`	Rotation (0/90/180/270)	0
`format`	Output (png/svg/pdf)	png
`key`	API key (raises the limits)	none

Supported types

QR Kod, EAN-13, Code 128, Data Matrix, EAN-8, UPC-A, UPC-E, Code 39, ITF-14, PDF417, Aztec, Codabar, Code 93, MSI

Example

cURL

curl "https://api.labelixa.com/v1/barcodes?type=datamatrix&data=DM-4821&xdim=5&fg=2563eb" > code.png

Sample QR barcode

Error handling

When invalid data or type is given, the API returns the error as an image with HTTP 200 and explains it in the X-Warnings header. This way an <img> always shows a visible result.