QR Code Generator

Create custom QR codes for URLs, WiFi, email, phone, and more. Free and browser-based.

QR Content

Foreground
Background
Dot Style
Corner Style
Logo
No file selected
File must be under 500 KB.
iHigher levels allow more of the QR code to be damaged or covered (e.g. by a logo) while still being scannable. L = 7%, M = 15%, Q = 25%, H = 30% recovery.
[QR]
Your QR code will appear here
Enter content on the left to generate
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What Is a QR Code?

A QR (Quick Response) code is a two-dimensional barcode that can store various types of data, including URLs, plain text, WiFi credentials, email addresses, phone numbers, and SMS messages. Originally developed for the automotive industry, QR codes are now used worldwide for payments, marketing, authentication, ticketing, and more. They can be scanned by any smartphone camera, making them one of the most accessible ways to share information instantly.

How This QR Code Generator Works

This tool runs entirely in your browser. When you type or paste content, the QR code is generated locally using JavaScript — nothing is sent to a server. Your data stays private on your device. You can customize colors, dot styles, corner styles, and even add a logo. The generated QR code can be downloaded as a high-resolution PNG (up to 2048px) or as a scalable SVG file, or copied directly to your clipboard.

Supported QR Code Types

This generator supports six common QR code types. URL codes open websites when scanned. Text codes store plain text messages. WiFi codes let people connect to a network by scanning — no need to type the password. Email codes open a pre-filled compose window. Phone codes initiate a call, and SMS codes open a text message draft. Each type uses a standard encoding format recognized by all major QR code readers.

Customization Options

Beyond basic black-and-white codes, you can customize the foreground and background colors, choose from six different dot styles (square, dots, rounded, extra-rounded, classy, classy-rounded), and select from three corner styles. You can also upload a logo that will be placed at the center of the QR code. When a logo is added, the error correction level is automatically set to High to ensure the code remains scannable even with the logo covering part of it.

Download and Share

Download your QR code in four sizes: 256px for small prints and icons, 512px for documents and presentations, 1024px for posters and signage, and 2048px for large-format printing. PNG format works for most use cases, while SVG provides infinite scalability for professional design work. You can also copy the QR code directly to your clipboard and paste it into any application that supports image pasting.

Why Use SudoTool's QR Code Generator?

Most online QR code generators are cluttered with ads, require account registration, or lock customization features behind a paywall. This tool is completely free, requires no signup, and processes everything locally in your browser. Your data never leaves your device. Whether you need a simple URL code for a business card or a branded WiFi code for your restaurant, this generator handles it without compromise.

Read the story behind this tool: Why I Built a Free QR Code Generator When "Free" Ones Already Exist