edoble QR API

A simple, database-free REST endpoint for generating QR codes on demand. It supports everything the generator on this site does — typed content (URL, text, email, phone, SMS, Wi-Fi), full styling, and centered logo overlays.

Endpoint

GET  https://qr.edoble.in/api/qrcode
POST https://qr.edoble.in/api/qrcode

Content

Provide the QR content either as raw text, or as a structured type with its fields (same six types as the generator). If both are given, the typed fields win.

type	Fields	Encodes as
url	url	https:// prefixed automatically if missing
text	text	raw text
email	email, subject, body	mailto:...
phone	phone	tel:...
sms	phone, message	smsto:...
wifi	ssid, password, encryption	WIFI:T:...;S:...;P:...;;

Without a type, pass raw content in text (or the legacy data alias).

Styling parameters

Field	Type	Default	Description
format	string	png	png \| svg \| base64
size	number	512	Image width in px (64–2048)
margin	number	2	Quiet zone size (0–10)
ecc	string	M	Error correction: L \| M \| Q \| H
dark	hex color	#202089	Foreground color
light	hex color	#FFFFFF	Background color

Logo overlay

Matches the “Logo” option on the generator: a logo is centered on the QR code with a rounded white backing, aspect ratio preserved.

Field	Type	Default	Description
logo	string	—	Logo image as a data: URL or an http(s) URL to fetch (max 5MB, must be an image)
logoScale	number	0.2	Logo size as a fraction of the QR width, clamped to 0.1–0.22 to stay reliably scannable

Only format=png and format=base64 support a logo — format=svg with a logo returns a 400 error.
Error correction is automatically boosted (falling back H → Q → M → L if the content is too large) whenever a logo is present, so the code still scans with part of it covered. This can override your requested ecc.

GET example

curl "https://qr.edoble.in/api/qrcode?text=https://edoble.com&size=512&dark=%23202089" \
  -o qrcode.png

# Structured content, e.g. Wi-Fi
curl "https://qr.edoble.in/api/qrcode?type=wifi&ssid=HomeNet&password=hunter2&encryption=WPA" \
  -o wifi-qrcode.png

POST example

curl -X POST https://qr.edoble.in/api/qrcode \
  -H "Content-Type: application/json" \
  -d '{
    "text": "https://edoble.com",
    "format": "base64",
    "size": 512,
    "dark": "#202089",
    "light": "#FFFFFF"
  }'

# With a logo overlay
curl -X POST https://qr.edoble.in/api/qrcode \
  -H "Content-Type: application/json" \
  -d '{
    "type": "url",
    "url": "https://edoble.com",
    "logo": "https://edoble.com/logo.png",
    "logoScale": 0.2,
    "format": "png"
  }' -o qrcode-with-logo.png

Response

format=png or format=svg return the image directly (image/png or image/svg+xml). format=base64 returns JSON:

{ "dataUrl": "data:image/png;base64,..." }

Notes

No API key required, no database — every request is generated on the fly.
CORS is enabled for all origins so you can call it from the browser.
Rate limiting / auth can be added later without changing the response shape.