Free QR Code Generator API Comparison 2026

// Generate QR code via goQR.me
const data = encodeURIComponent('https://example.com');
const url = `https://api.qrserver.com/v1/create-qr-code/?data=${data}&size=300x300`;

// Use directly in an img tag
document.getElementById('qr').src = url;

// Or download as buffer
const res = await fetch(url);
const blob = await res.blob();

import requests

# Generate QR code
url = "https://api.qrserver.com/v1/create-qr-code/"
params = {"data": "https://example.com", "size": "300x300"}
response = requests.get(url, params=params)

with open("qr.png", "wb") as f:
    f.write(response.content)

// qrcode.show with headers
const res = await fetch('https://qrcode.show/https://example.com', {
  headers: { 'Accept': 'image/png' }
});
const blob = await res.blob();

// Or POST for longer data
const res2 = await fetch('https://qrcode.show', {
  method: 'POST',
  headers: { 'Accept': 'image/svg+xml' },
  body: 'WIFI:T:WPA;S:MyNetwork;P:MyPassword;;'
});

import requests

# PNG with custom colors
response = requests.get(
    "https://qrcode.show/https://example.com",
    headers={
        "Accept": "image/png",
        "X-QR-Dark-Color": "10b981"
    }
)
with open("qr.png", "wb") as f:
    f.write(response.content)

// Get free API key
const keyRes = await fetch('https://api.frostbyte.world/api/keys/create', { method: 'POST' });
const { apiKey } = await keyRes.json();

// Generate QR code
const res = await fetch('https://api.frostbyte.world/v1/agent-imageproc/api/qrcode', {
  method: 'POST',
  headers: {
    'Authorization': `Bearer ${apiKey}`,
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    text: 'https://example.com',
    size: 300,
    dark: '#10b981',
    light: '#ffffff'
  })
});
const { image, format } = await res.json();
// image is base64 encoded

import requests, base64

# Get free API key
key_res = requests.post("https://api.frostbyte.world/api/keys/create")
api_key = key_res.json()["apiKey"]

# Generate QR code
res = requests.post(
    "https://api.frostbyte.world/v1/agent-imageproc/api/qrcode",
    headers={"Authorization": f"Bearer {api_key}"},
    json={"text": "https://example.com", "size": 300}
)
img_data = base64.b64decode(res.json()["image"])
with open("qr.png", "wb") as f:
    f.write(img_data)