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Visual

Barcode Generator

QR codes and barcodes at the edge

Generate QR codes and 1D barcodes as clean SVG — no fonts, no raster images. Supports QR (all error correction levels), Code 128, EAN-13, UPC-A, and Code 39. Sub-5ms at the network edge.

Base URL https://qr-codes-barcodes.p.rapidapi.com
Auth X-RapidAPI-Key: YOUR_KEY
Format application/json
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Supported Formats

Format Endpoint Output Notes
QR Code /v1/qr SVG EC levels L, M, Q, H — auto-selects version
Code 128 /v1/barcode SVG Full printable ASCII (Subset B)
EAN-13 /v1/barcode SVG 12 or 13 digits — check digit auto-computed
UPC-A /v1/barcode SVG 11 or 12 digits — encoded as EAN-13 with leading 0
Code 39 /v1/barcode SVG Alphanumeric + symbols (auto-uppercased)

Endpoints

POST /v1/qr

Generate a QR code SVG (error correction L / M / Q / H)

Request body
{
  "data": "https://example.com",
  "size": 256,
  "error_correction": "M"
}
Response 200
{
  "svg": "<svg xmlns=\"http://www.w3.org/2000/svg\" .../>",
  "version": 3,
  "error_correction": "M",
  "modules": 29
}
cURL example 
curl -X POST https://qr-codes-barcodes.p.rapidapi.com/v1/qr \
  -H "Content-Type: application/json" \
  -H "X-RapidAPI-Key: YOUR_API_KEY" \
  -H "X-RapidAPI-Host: qr-codes-barcodes.p.rapidapi.com" \
  -d '{"data":"https://example.com","size":256,"error_correction":"M"}'

# Save SVG directly to a file:
curl -s -X POST https://qr-codes-barcodes.p.rapidapi.com/v1/qr \
  -H "Content-Type: application/json" \
  -H "X-RapidAPI-Key: YOUR_API_KEY" \
  -H "X-RapidAPI-Host: qr-codes-barcodes.p.rapidapi.com" \
  -d '{"data":"https://example.com","size":256}' \
  | python3 -c "import sys,json; print(json.load(sys.stdin)['svg'])" > qr.svg
POST /v1/barcode

Generate a 1D barcode SVG (EAN-13, UPC-A, Code 128, Code 39)

Request body
{
  "data": "5901234123457",
  "symbology": "ean13",
  "height": 100,
  "bar_width": 2
}
Response 200
{
  "svg": "<svg xmlns=\"http://www.w3.org/2000/svg\" .../>",
  "symbology": "ean13",
  "data": "5901234123457"
}
cURL example 
curl -X POST https://qr-codes-barcodes.p.rapidapi.com/v1/barcode \
  -H "Content-Type: application/json" \
  -H "X-RapidAPI-Key: YOUR_API_KEY" \
  -H "X-RapidAPI-Host: qr-codes-barcodes.p.rapidapi.com" \
  -d '{"data":"5901234123457","symbology":"ean13"}'

# Save SVG directly to a file:
curl -s -X POST https://qr-codes-barcodes.p.rapidapi.com/v1/barcode \
  -H "Content-Type: application/json" \
  -H "X-RapidAPI-Key: YOUR_API_KEY" \
  -H "X-RapidAPI-Host: qr-codes-barcodes.p.rapidapi.com" \
  -d '{"data":"5901234123457","symbology":"ean13"}' \
  | python3 -c "import sys,json; print(json.load(sys.stdin)['svg'])" > barcode.svg
GET /v1/health No auth required

Health check — no authentication required

Response 200
{
  "status": "ok"
}
cURL example 
curl https://qr-codes-barcodes.p.rapidapi.com/v1/health

Error Responses

All errors follow a flat JSON shape:

Error shape
{ "error": "<message>", "code": <http_status> }
Status Condition
401Missing or invalid X-RapidAPI-Proxy-Secret header
400Unsupported symbology, invalid data (e.g. non-numeric EAN-13), or bad EC level
422Malformed JSON request body
404Unknown route
500Internal server error

Generate your first code

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