QR Code Examples

Explore various types of QR codes that can be generated with our API. Each example includes a sample image and the corresponding API call to create it.

Standard QR Codes

These are standard QR codes generated without any background images.

Basic QR Code

curl -X POST \
-F "text=https://example.com" \
http://localhost:3000/api/generate-qr

Colorized QR Code

curl -X POST \
-F "text=https://example.com" \
-F "colorized=true" \
http://localhost:3000/api/generate-qr

WiFi QR Code

curl -X POST \
-F "text=WIFI:S:YourWiFiNetwork;T:WPA;P:YourSecurePassword;;" \
http://localhost:3000/api/generate-qr

vCard QR Code

curl -X POST \
-F "text=BEGIN:VCARD
VERSION:3.0
N:Knapp;Colin;;;
FN:Colin Knapp
ORG:Colin Knapp
TITLE:Developer
TEL;TYPE=CELL:+1234567890
EMAIL:contact@colinknapp.com
URL:https://colinknapp.com
END:VCARD" \
http://localhost:3000/api/generate-qr

Custom WiFi Background QR Codes

These QR codes use a WiFi-themed background image to create visually appealing QR codes.

Basic QR with WiFi Background

curl -X POST \
-F "image=@wifi.webp" \
-F "text=https://example.com" \
http://localhost:3000/api/generate-qr

Colorized QR with WiFi Background

curl -X POST \
-F "image=@wifi.webp" \
-F "text=https://example.com" \
-F "colorized=true" \
http://localhost:3000/api/generate-qr

WiFi QR with WiFi Background

curl -X POST \
-F "image=@wifi.webp" \
-F "text=WIFI:S:YourWiFiNetwork;T:WPA;P:YourSecurePassword;;" \
http://localhost:3000/api/generate-qr

vCard QR with WiFi Background

curl -X POST \
-F "image=@wifi.webp" \
-F "text=BEGIN:VCARD
VERSION:3.0
N:Knapp;Colin;;;
FN:Colin Knapp
ORG:Colin Knapp
TITLE:Developer
TEL;TYPE=CELL:+1234567890
EMAIL:contact@colinknapp.com
URL:https://colinknapp.com
END:VCARD" \
http://localhost:3000/api/generate-qr

Animated QR Codes with Transparent Cat

These QR codes use a transparent cat GIF as the background, creating animated QR codes that loop.

Basic Animated QR

curl -X POST \
-F "image=@cat.gif" \
-F "text=https://example.com" \
-F "qr_type=animated" \
http://localhost:3000/api/generate-qr

Colorized Animated QR

curl -X POST \
-F "image=@cat.gif" \
-F "text=https://example.com" \
-F "colorized=true" \
-F "qr_type=animated" \
http://localhost:3000/api/generate-qr

WiFi Animated QR

curl -X POST \
-F "image=@cat.gif" \
-F "text=WIFI:S:YourWiFiNetwork;T:WPA;P:YourSecurePassword;;" \
-F "qr_type=animated" \
http://localhost:3000/api/generate-qr

Back to QR Generator

API Documentation

The QR Code Generator provides a simple API for generating QR codes with various customization options.

Endpoint

POST /api/generate-qr

Parameters

Parameter	Type	Required	Description
text	string	Yes	The text to encode in the QR code
image	file	No	Background image for the QR code (jpg, png, gif)
colorized	boolean	No	Whether to create a colorized QR code (default: false)
version	integer	No	QR code version (1-40, default: 1)
error_correction	string	No	Error correction level (L, M, Q, H, default: H)
contrast	float	No	Contrast adjustment (0.1-5.0, default: 1.0)
brightness	float	No	Brightness adjustment (0.1-5.0, default: 1.0)
border	integer	No	Border size in modules (0-20, default: 4)
qr_type	string	No	QR code type (normal, animated, default: normal)