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QR Code Generator

Create custom QR codes with your own logo, colors, and design, then download them in high resolution for print or web.

Secure Local Generation
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All QR codes are generated completely inside your web browser. No data, URLs, credentials, or uploaded logos are ever transmitted to our servers, keeping your information private.
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Enter QR Content

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Customize QR Code Styling

Color Options

QR Pattern & Corners

Brand Logo Integration

Logo Scale Factor 0.10

Resolution & Reliability

Live QR Preview

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Point camera to scan instantly

Design Templates

Download & Actions

Knowledge Hub

Deep Dive: Understanding QR Codes

What is a QR Code?

A Quick Response (QR) code is a matrix barcode invented in 1994 by the Japanese automotive company Denso Wave. Unlike standard 1D barcodes that encode data horizontally only, QR codes encode data horizontally and vertically, allowing them to store up to 300 times more information (including URLs, contact details, WiFi keys, and text blocks).

Business & Industry Use Cases

  • Restaurants & Cafes: Digitize printed menus to reduce overhead costs and simplify items editing.
  • Event Organizers: Print QR codes on digital/physical tickets for rapid, seamless gate scanning.
  • Retail & Product Packaging: Lead customers straight to user manuals, warranty registrations, or brand campaigns.
  • Hospitality: Share Wi-Fi credentials effortlessly in hotel rooms or lobbies without typing complex passwords.

Marketing & Engagement Benefits

QR codes enable "print-to-digital" marketing, turning physical flyers, banners, and billboards into direct digital channels. By adding tracking parameters to target URLs, marketers can monitor scan locations, client devices, and timestamps to calculate the exact ROI of offline advertisement assets.

QR Code Best Scanning Practices

  • High Contrast: Always keep the foreground color significantly darker than the background (avoid light-colored dots on light backgrounds).
  • Sufficient Size: Print codes at a minimum size of 2x2 cm (0.8"x0.8") for close scanning, and scale up for billboards.
  • Safe Padding: Maintain a clean border space ("quiet zone") around the code so camera algorithms can detect the corners.
  • Test Before Printing: Scan the QR code using multiple phone devices (iOS, Android) and camera apps before printing batch files.
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Education

How QR Codes Store and Recover Data

01

What Makes a QR Code Different From a Barcode

A Quick Response (QR) code is a two-dimensional matrix barcode, invented in 1994 by Denso Wave, that encodes data both horizontally and vertically instead of along a single line like a traditional barcode. This lets a single QR code store hundreds of times more information, including full URLs, WiFi credentials, vCard contact details, or a pre-filled WhatsApp message, all of which this tool supports as dedicated input tabs.

02

Error Correction Levels Explained

QR codes include built-in error correction so a scanner can still read the code even if part of it is damaged, obscured, or covered by a logo. Level L recovers about 7% of the code, M recovers about 15%, Q recovers about 25%, and H recovers about 30%, which is why High is the recommended and default setting whenever a logo is placed in the center of the code.

03

Styling Without Breaking Scannability

Rounded dots, gradients, and a center logo can be applied without breaking a scan as long as the foreground stays clearly darker than the background and the quiet zone margin around the edge stays intact. For example, the built-in WhatsApp template applies a green gradient with a WhatsApp logo at a small scale, which still scans reliably because the logo only covers a small percentage of the total code area, controlled by the logo scale factor.

04

Static QR Codes and Where to Use Them

The codes generated here are static, meaning the data is encoded directly inside the pattern and will keep working indefinitely as long as the destination content, such as a URL, stays live; they cannot be edited after creation the way a dynamic redirect-based QR service can. Pair this tool with the Barcode Generator when a 1D symbology such as Code 128 is required instead, or with the Password Generator when a WiFi QR code needs a strong network password.

Good to know

Questions, answered

Quick answers about how this tool works.

Yes. You can create unlimited QR codes for free and download them in high-quality formats such as PNG, SVG, PDF, and WebP.

No. Static QR codes do not expire and will continue working indefinitely as long as the linked content or destination remains available.

Static QR codes store information directly inside the code and cannot be edited later. Dynamic QR codes use a redirect link that can be updated after creation.

Yes. You can upload your business logo or brand icon and place it in the center of the QR code while maintaining scan reliability.

For standard QR codes, Medium (M) is usually sufficient. If you add a logo or design elements, choose High (H) or Quartile (Q) for better scan performance.

PNG is ideal for digital use, SVG is perfect for printing and scaling without quality loss, PDF works well for documents, and WebP provides smaller file sizes for websites.

Static QR codes do not include analytics. To track scans, clicks, locations, and devices, you would need a dynamic QR code service with analytics support.

For most printed materials, a minimum size of 2 x 2 cm is recommended. Larger sizes improve scanning distance and reliability.

Yes. Modern iPhone and Android devices can scan QR codes directly using their built-in camera applications without requiring additional software.

The QR code itself can be scanned offline, but online content such as websites, videos, or forms requires an internet connection to open.

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