QR Code Generator

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Generate QR codes for URLs, text, and more

Developer Tools

How to Use QR Code Generator

  1. 1Enter the URL, text, or other data you want to encode
  2. 2Adjust the size using the size slider
  3. 3Select the error correction level (higher = more readable when damaged)
  4. 4Preview the QR code in real-time
  5. 5Click "Download PNG" to save the QR code

About QR Code Generator

QR codes (Quick Response codes) are two-dimensional barcodes that can be scanned by smartphones and other devices to quickly access URLs, contact information, text, and much more. They bridge the physical and digital worlds, making it effortless to share information without typing.

Our QR Code Generator creates high-quality QR codes instantly in your browser. You can customize the size and error correction level, preview the code in real time, and download the result as a PNG image — all without creating an account or uploading data anywhere.

QR codes are perfect for business cards, marketing materials, product labels, event signage, and sharing links. Higher error correction levels allow codes to remain scannable even if up to 30% of the image is damaged or obscured.

Key Features of QR Code Generator

  • Generate QR codes for URLs, plain text, email addresses, and phone numbers
  • Adjustable size slider for print-ready or screen-optimized output
  • Four error correction levels: L (7%), M (15%), Q (25%), H (30%)
  • Live preview of the QR code as you type
  • Download as high-resolution PNG suitable for print and digital use
  • Works entirely in-browser — no data is sent to any server
  • No account or registration required
  • Instant generation with no loading delay

Examples

Generate a QR code for a website URL

Add a scannable QR code to a printed flyer or business card that links to your website.

Input

https://www.example.com

Output

QR code PNG linking to the URL, scannable by any smartphone camera

Encode a Wi-Fi password for guests

Let guests join your Wi-Fi by scanning instead of typing a long password.

Input

WIFI:S:MyNetwork;T:WPA;P:MyPassword123;;

Output

QR code PNG that opens the Wi-Fi join dialog on iOS and Android

Common Use Cases

  • Adding scannable links to printed marketing materials and flyers
  • Including a QR code on business cards that links to a portfolio or LinkedIn
  • Creating Wi-Fi guest access codes for offices, cafes, or events
  • Linking product packaging to instruction manuals or product pages
  • Directing conference or event attendees to schedules, maps, or registration pages
  • Sharing contact information (vCard) without requiring a business card app

Troubleshooting

QR code cannot be scanned

Solution

Ensure there is enough contrast between the QR code and its background (black on white is ideal). Also increase the error correction level to H for damaged or printed codes.

Downloaded PNG appears blurry when printed

Solution

Increase the size setting before downloading. For print use, set the size to at least 300px and print at 300 DPI or higher.

QR code links to the wrong URL

Solution

Double-check the input text before generating. QR codes encode exactly what you type — ensure the URL includes the protocol (https://) and has no typos.

Code is too complex to scan reliably

Solution

Very long input strings (over 500 characters) produce dense QR codes that can be difficult to scan. Shorten the URL using a URL shortener before encoding.

Frequently Asked Questions

What can I encode in a QR code?

You can encode URLs, plain text, email addresses (mailto: links), phone numbers (tel: links), SMS messages, Wi-Fi credentials, and vCard contact data. Any text string up to a few thousand characters can be encoded.

What file format is the QR code downloaded in?

The QR code is downloaded as a high-resolution PNG image suitable for both print and digital use. PNG preserves the sharp edges of the code patterns without compression artifacts.

Do QR codes expire?

QR codes generated with this tool contain static data and never expire on their own. However, if you encode a URL, the destination website may change or go offline — the code itself remains permanently valid.

What is error correction and which level should I use?

Error correction allows a QR code to be read even if part of it is damaged or obscured. Level L (7%) is fine for clean digital use, level M or Q for general print use, and level H (30%) for codes that may be partially covered, such as those with a logo in the center.

Is there a maximum amount of data I can encode?

Yes. A QR code can store up to about 3,000 characters of text or about 7,000 numeric digits, depending on the version and error correction level. For long URLs, consider using a URL shortener first.

Can I add a logo to the center of the QR code?

This tool generates a clean QR code without an embedded logo. You can add a logo in an image editor afterward — use error correction level H so the code remains readable with the logo covering the center.

Is my data safe when using this tool?

Yes. The QR code is generated entirely in your browser using a JavaScript library. The text you enter never leaves your device and is not stored or transmitted anywhere.

Can I scan QR codes I generate with any phone?

Yes. QR codes generated here follow the standard QR code specification and are scannable by any modern smartphone camera app (iOS, Android) or dedicated QR code scanner app.