QR Code Generator

A QR (Quick Response) code is a two-dimensional barcode that stores data in a grid of black and white squares. First invented in 1994 by Denso Wave for tracking automotive parts, QR codes have since become one of the most widely used encoding formats in the world. Unlike traditional barcodes that store data in one dimension, QR codes encode information both horizontally and vertically, allowing them to hold significantly more data — up to 4,296 alphanumeric characters or 7,089 numeric digits in a single code.

This free online QR code generator creates QR codes instantly as you type. It supports any text content including URLs, plain text, email addresses, phone numbers, Wi-Fi credentials, and more. All processing happens entirely in your browser using JavaScript — your data is never sent to any server, making it completely safe for sensitive information like Wi-Fi passwords or private URLs.

• Real-time QR code generation — the code updates instantly as you type or paste content
• Custom foreground and background colors — match your brand or design requirements
• Multiple size options from 128px to 512px for different use cases
• Four error correction levels (L/M/Q/H) — higher levels allow the code to be read even when partially damaged
• Download as PNG for web use, print, or sharing on social media
• Download as SVG for scalable vector output that stays crisp at any size
• Copy QR code to clipboard as an image with one click
• Fullscreen mode for working with the generator on smaller screens
• Supports any UTF-8 text including URLs, email, phone, Wi-Fi, vCard, and more
• 100% client-side processing — your data never leaves your browser

1. Type or paste your content (URL, text, email, phone number, etc.) in the input panel on the left.
2. The QR code appears instantly in the preview panel on the right.
3. Adjust the size, colors, and error correction level using the controls below the input.
4. Click PNG or SVG to download the QR code, or Copy to copy it to your clipboard.
5. Use the downloaded QR code in print materials, websites, presentations, or social media.

QR codes include built-in error correction using Reed-Solomon codes, which allows them to be scanned even when partially damaged or obscured. There are four levels of error correction, each trading capacity for resilience.

• Level L (Low, 7%) — maximum data capacity, minimal damage tolerance. Best for clean digital displays where the code will not be physically damaged.
• Level M (Medium, 15%) — default balance between capacity and reliability. Suitable for most general-purpose uses including printed flyers and business cards.
• Level Q (Quartile, 25%) — higher resilience. Good for outdoor signage, product packaging, or situations where the code may get scratched or dirty.
• Level H (High, 30%) — maximum damage tolerance at the cost of reduced data capacity. Essential when embedding logos over the QR code or for industrial environments.

• Website URLs — share links to websites, landing pages, or app download pages with a quick scan
• Business cards — add a QR code to your vCard so contacts can save your info instantly
• Wi-Fi sharing — encode your network name and password so guests can connect without typing
• Payment links — generate QR codes for PayPal, Venmo, or cryptocurrency wallet addresses
• Event tickets — embed ticket IDs or check-in URLs for concerts, conferences, and meetups
• Restaurant menus — link to digital menus so diners can browse on their own devices
• Product packaging — link to manuals, warranty registration, or product support pages
• Marketing campaigns — track engagement by linking to campaign-specific landing pages
• Education — share classroom resources, assignment links, or quiz URLs with students

• Use short URLs or URL shorteners to reduce QR code complexity and improve scan reliability
• Maintain high contrast between foreground and background colors — dark on light works best
• Avoid inverting colors (light foreground on dark background) as many scanners struggle with this
• Choose a higher error correction level (Q or H) if the QR code will be printed small or placed outdoors
• Test your QR code with multiple devices and scanning apps before publishing
• For print, use SVG format to ensure the code stays crisp at any size
• Leave adequate quiet zone (white space) around the QR code — at least 4 modules wide
• When embedding logos, use error correction level H to compensate for the obscured modules

This QR code generator runs entirely in your browser. No data is sent to any server — the QR code is generated using JavaScript on your device. This makes it safe to use for sensitive data like Wi-Fi passwords, private URLs, authentication tokens, or personal contact information.

You can verify this by disconnecting from the internet and confirming that the tool continues to work. There are no analytics on what you type, no server logs, and no data collection of any kind. The generated QR code exists only in your browser memory until you download or copy it.