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QR Code Generator

Create QR codes for links, plain text, email, phone numbers, and Wi-Fi details. Customize colors and size, then download as PNG.

Your QR preview appears here. Enter content and click "Generate QR Code".

About QR Code Generator — QR Code Generator Online Free

A QR code generator online free lets you create scannable QR codes from URLs, plain text, email addresses, phone numbers, and Wi-Fi credentials in seconds — no account, no watermark, no cost. QR codes (Quick Response codes) are two-dimensional barcodes that any smartphone camera can decode instantly. Marketers, event organizers, restaurant owners, developers, and educators use a QR code generator online free to bridge the gap between physical print materials and digital content without relying on manual typing.

This tool generates QR codes entirely in your browser. You control the output size (128 px to 1024 px), the error correction level, and the foreground and background colors. The finished QR code can be downloaded as a PNG file ready for use in print, presentations, packaging, or web pages. Because generation happens locally, your data is never transmitted to any external server — a meaningful privacy advantage when encoding sensitive information like Wi-Fi passwords or internal URLs.

How to Use the QR Code Generator

  1. Type or paste your content into the Content field — this can be a URL, plain text, an email address, a phone number, or a Wi-Fi string.
  2. Set the desired Size in pixels. Use 320 px for digital use and 512 px or higher for print materials to ensure sharp rendering at the intended display size.
  3. Choose an Error Correction level: L (7%), M (15%), Q (25%), or H (30%). Higher correction means the QR remains scannable even if part of it is damaged or obscured by a logo.
  4. Optionally set custom Foreground and Background colors using the color pickers. Keep high contrast between the two for reliable scanning.
  5. Click Generate QR Code to render the QR in the preview panel, then click Download PNG to save the image file to your device.

QR Code Content Formats

QR codes can encode more than just web links. This QR code generator online free supports all standard content formats that smartphone QR scanners recognize natively.

  • Website URL: Enter a full URL (e.g., https://oneyfy.com). Scanning opens the link directly in the device's browser. This is the most common QR use case for business cards, flyers, and product packaging.
  • Email: Use the mailto: scheme (e.g., mailto:[email protected]?subject=Hello) to open a pre-addressed email compose window when scanned.
  • Phone number: Use the tel: scheme (e.g., tel:+1234567890) to pre-dial a phone number. Scanning prompts the device to call the number.
  • Wi-Fi credentials: Use the format WIFI:T:WPA;S:NetworkName;P:Password;; to encode Wi-Fi login details. Scanning joins the network automatically on Android and shows a "Join" prompt on iOS — no typing required for guests.

Tips for Getting the Best Results

Follow these best practices to produce QR codes that scan reliably in the real world and look professional in print and digital media.

  • Choose the right size for the medium: A QR code on a business card can be 200–300 px; one on a poster or banner should be at least 512 px. For print, a good rule of thumb is that the QR should be at least 2 cm × 2 cm at the final print size, with a minimum 4-module quiet zone (white border) around all edges.
  • Use High error correction for logo overlays: If you plan to place a logo or icon in the center of the QR code, select error correction level H (30%). This reserves enough redundancy that the QR remains decodable even with up to 30% of the modules obscured. M is sufficient for clean, unobstructed QR codes.
  • Keep URLs short: Longer content requires more modules (denser QR) and a higher minimum size to scan reliably. Use a URL shortener for long links. Short URLs also produce less dense QR codes that scan faster and from greater distances.
  • Maintain sufficient color contrast: The foreground (dark) color and background (light) color must have high contrast. Avoid light-on-dark unless you know your scanner supports inverted QR codes (most modern apps do, but older ones may not). Dark modules on a white background remain the most universally compatible choice.
  • Always test before printing: Scan the generated QR code with at least two different devices — an iPhone and an Android — before committing to a print run. Verify the content is correct, the link resolves, and the scan is fast. Generate at a large enough size that the final printed size remains sharp.

Why Use a QR Code Generator Online Free

Browser-based QR code generators require no app installation, no account creation, and no subscription fee. This tool produces PNG files you can immediately drop into any design application, document, or web page. Because QR generation runs entirely in your browser, your data — including Wi-Fi passwords and private URLs — is never sent to a server or logged anywhere.

This tool is ideal for small business owners creating table tent cards or menus, event planners sharing schedule links, teachers sharing resources in classrooms, developers testing deep links, and anyone who needs a clean, reliable QR code without a watermark or a monthly fee.

Frequently Asked Questions about QR Code Generator

No. All QR code generation happens locally in your browser using JavaScript. Your content — whether it is a URL, text, or Wi-Fi password — is never sent to any server, never logged, and never stored. The tool uses the QRious library which runs entirely on the client side. You can verify this by opening your browser's network inspector: no data requests are made during generation.
Use M (Medium, 15%) for most use cases — it is the best balance between data density and reliability. Use H (High, 30%) if the QR may get partially damaged (outdoor signage, product labels) or if you plan to overlay a logo in the center. Use L (Low, 7%) only when you need to fit very long content into a small QR and scan conditions are ideal.
Yes. Use the foreground and background color pickers to match your brand colors. For reliable scanning, maintain strong contrast — the dark foreground modules must be significantly darker than the background. A contrast ratio of at least 3:1 is recommended. Avoid very dark backgrounds with dark foreground colors or very pale foregrounds on white backgrounds.
Yes, completely free with no hidden costs. There are no usage limits, no sign-up requirements, and no watermarks on the downloaded PNG files. You can generate as many QR codes as you need at any size, for personal or commercial use.
The downloaded file is a PNG image. PNG is lossless, so the QR code remains sharp and scannable at any display size. PNG also supports transparency, though this tool generates QR codes with a solid background color. For vector output (SVG), you would need a different tool.
Yes. The tool is fully responsive and works on smartphones and tablets. You can generate and download a QR code PNG directly from your mobile browser without installing any app. The layout adapts to narrow screens automatically.
No — static QR codes generated by this tool never expire. The QR code is simply a visual encoding of the text you provided. As long as the URL or content it encodes remains valid and accessible, the QR code will work indefinitely. Dynamic QR codes from some services can expire, but those require a redirecting server; this tool generates direct static codes.
QR codes can store up to approximately 4,296 alphanumeric characters, 7,089 numeric digits, or 2,953 bytes of binary data at the highest capacity version. In practice, shorter content produces a less dense QR code that scans faster and more reliably, especially at small print sizes. For URLs, keep content under 300 characters for best results across all scanner apps.