Free Bulk QR Code
Generator & API

What is Bulk QR Code Generation?

Bulk QR code generation is the process of creating hundreds or thousands of QR codes programmatically in a single batch operation. Instead of manually generating each QR code one-by-one through a web interface, you send a series of HTTP requests to an API endpoint that returns the QR code images instantly. This is essential for businesses managing large inventories, event organizers issuing tickets, manufacturers labeling products, or logistics companies tracking assets.

QRMint's free bulk QR code API requires no authentication, no API key, and has no rate limits. Simply send a GET request with your data and styling parameters, and receive a PNG or SVG QR code in response. You can generate thousands of unique QR codes per minute using parallel requests from any programming language, command-line tool, or automation script.

Use Cases for Bulk QR Code Generation

Inventory Management: Generate a unique QR code for every SKU in your warehouse. Scan codes to update stock levels, track item locations, and log movement history. Print codes as labels using standard thermal printers.

Event Ticketing: Issue a unique QR code ticket for every attendee. Scan codes at entry gates to validate tickets, prevent duplicates, and track attendance in real-time. Works for conferences, concerts, sports events, and festivals.

Product Labeling: Add a QR code to every product for authenticity verification, warranty registration, or user manuals. Customers scan the code to access product-specific information, support resources, or loyalty program enrollment.

Asset Tracking: Label company equipment, IT hardware, furniture, and vehicles with QR codes. Scan to log maintenance, track assignments, and manage asset lifecycle from procurement to disposal.

How to Generate Bulk QR Codes with the API

The simplest method is to loop through your data and send a GET request for each item. Here's a Python example that generates 100 URL QR codes:

import requests

base_url = "https://qrmint.dev/api/v1/generate"
for i in range(1, 101):
    url = f"https://example.com/item/{i}"
    params = {
        "data": url,
        "size": 512,
        "format": "png",
        "fgColor": "#000000",
        "bgColor": "#ffffff"
    }
    response = requests.get(base_url, params=params)
    with open(f"qr_{i}.png", "wb") as f:
        f.write(response.content)
    print(f"Generated QR code {i}/100")

For faster generation, use parallel requests with libraries like concurrent.futures in Python or Promise.all() in JavaScript. You can easily reach 1000+ QR codes per minute by running 10-20 parallel requests.

API Parameters for Customization

Every QR code in your bulk batch can be individually styled. Use URL parameters to set foreground color (fgColor), background color (bgColor), size (size), format (format: png or svg), error correction level (errorCorrection: L, M, Q, H), module style (moduleStyle), and more. See the full parameter list in the API documentation.