Easily Create QR Codes
Free QR Code Generator
= QR Code Generator =
QR Code みんなの知識ちょっと便利帳
Generate QR Code 
Scan QR Code 
Old Version  
QR Code Generator
Design Detail Settings

Image Size: 256 x 256
※ We recommend verifying your QR code using a QR Code Reader .
※ Please thoroughly check whether the QR code can be scanned if a logo image or similar is overlaid.
  • About encoding special characters
    • This option converts Japanese characters, symbols, and other special characters into a format that can be safely used in web pages and QR codes.
      • Example: “Hello & ありがとう” → “Hello%20%26%20%E3%81%82%E3%82%8A%E3%81%8C%E3%81%A8%E3%81%86”
    • Use this when your QR code contains messages, queries, or other content with special characters.
    • ⚠ Do not apply this to entire regular URLs (e.g., https://example.com). It may prevent the QR code from functioning correctly.
  • The number of characters a QR code can hold varies depending on the character type and error correction level.
  • Smartphones and PCs generally use UTF-8 encoding. Older devices may require Shift_JIS, but unless specified otherwise, UTF-8 is recommended.
  • The error correction level typically defaults to "M" (about 15% error recovery), but it can be adjusted based on your needs.
  • Too much input data may cause difficulties in generating or scanning the QR code. Please be cautious.
  • If the contrast between the background color and the QR code is low, scanning may fail.
  • Please handle personal information carefully.
  • We are not responsible for any issues or damages resulting from the use or inability to use this tool.
  • QR code® is a registered trademark of DENSO WAVE INCORPORATED.
　Examples of Appropriate QR Code Sizes by Use Case　
Size (px) Use Case
100 × 100 　For very limited space or testing / restricted UI areas
128 × 128 　For smartphones / compact web components / small business cards
150 × 150 　For social media profiles / minimalist uses like back of business cards
192 × 192 　Minimum size for web display
200 × 200 　In-app QR display / web components / small icons
256 × 256 　General-purpose / standard size / compatible with PC and smartphones
320 × 320 　For slightly larger prints or embedded in layouts
384 × 384 　For presentations, slides, and flyers
512 × 512 　For A4 prints, screen displays, and posted materials
640 × 640 　For exhibition panels, larger pages, and information signs
768 × 768 　For digital signage, long-distance scanning, and large monitors
896 × 896 　For posters, A3 prints, and high-definition required applications
1024 × 1024 　For outdoor signage, large-format digital signage, and large print media
　Useful Applications of QR Codes and Template Features　

This tool allows you to easily generate QR codes not only by freely entering URLs or text, but also by selecting from various template formats tailored to your needs—such as business card information (vCard), Wi-Fi connection details, event registration (iCalendar), and more. It is useful in a wide range of situations, from everyday life to business settings.

  • Sharing URL links: Provide easy access to websites or online forms.
  • Sharing contact information: Add QR codes to business cards to quickly share contact details or social media accounts in vCard format.
  • Sharing event details: Register event date, time, and location using iCalendar format so attendees can easily add them to their calendars.
  • Sharing Wi-Fi information: Simply enter the SSID and password to allow easy connection via QR code.
  • Creating email/SMS links: Generate links for sending emails or SMS with preset messages for smooth communication.
  • Sharing map links: Convert Google Maps URLs into QR codes for easy navigation and location sharing.
  • Linking to product information or manuals: Attach QR codes to product packaging to offer detailed info or tutorial videos.
  • Supporting cashless payments: Generate QR codes for money transfers via services like Merpay or PayPay to enable seamless payments.
  • Promotions and campaigns: Embed coupon codes or special offers in QR codes to attract customers.
  • Education and learning: Share links to study materials or supplemental resources through QR codes for easy access by learners.
　QR Code Generator Tool FAQ　
  1. What is a QR Code Generator Tool?
    A QR Code Generator Tool allows you to easily create QR codes by entering various types of information, such as text, URLs, contact details, and Wi-Fi settings. The generated QR codes can be downloaded and used for printing or digital distribution.
  2. What kind of information can be converted into QR codes?
    The following information can be converted into QR codes:
    ・Website URLs
    ・Phone numbers
    ・Email addresses
    ・Wi-Fi connection information (SSID and password)
    ・Event or schedule information
    ・Text messages or custom data
  3. Is this tool free to use?
    Yes, this tool is completely free to use. There are no additional costs or registrations required.
  4. How can I use the generated QR codes?
    The generated QR codes can be used in the following ways:
    ・Print them to attach to flyers or posters
    ・Upload them to websites or social media
    ・Include them in business cards or brochures
    ・Use them for event invitations or store directions
  5. Can I save the generated QR codes?
    Yes, the generated QR codes can be downloaded in PNG, JPEG, GIF, or SVG formats. Simply click the "Download" button after generating to save them as images.
  6. Can I create QR codes using a smartphone or tablet?
    Yes, this tool is accessible on smartphones and tablets. You only need to access it through a browser, with no need to install any apps.
  7. Can I customize the design of the QR codes?
    Yes, you can overlay images such as logos, change the colors, and adjust the shape and color of the frames. However, depending on the size of the logo or the color scheme, the QR code may not be readable. Please test thoroughly. We recommend checking with a QR code reader .
  8. What is needed to create a Wi-Fi QR code?
    Simply input the following Wi-Fi connection information to generate a QR code:
    ・Network name (SSID)
    ・Password
    ・Encryption type (e.g., WPA/WPA2)
  9. Do the generated QR codes have an expiration date?
    The QR codes themselves do not have an expiration date. However, if the information embedded in the QR code is time-sensitive (e.g., temporary URLs), it may become invalid over time.
  10. What should I be aware of when creating QR codes?
    ・Ensure the input information is accurate.
    ・If the information is too long, the QR code may become complex and difficult to read.
    ・Using shortened URLs can make QR codes easier to scan.
  11. Are QR codes safe?
    QR codes generated by this tool are safe. However, exercise caution when sharing them publicly, as malicious parties could misuse the shared QR codes. Share only within necessary boundaries.
  12. What is an error correction level?
    Error correction levels are settings that allow QR codes to remain readable even if partially damaged. Generally, higher error correction levels provide more stability but result in larger QR codes.
  13. Are there any limitations to using this tool?
    There are limits to the amount and size of content that can be encoded in a QR code. Extremely complex or large data might not be supported.
  14. How does this tool work?
    1. Enter the required information into the input form.
    2. Click the "Generate QR Code" button.
    3. Download or share the displayed QR code.
  15. What sets this tool apart from other QR code tools?
    ・Choose from preset standard sizes
    ・Freely adjust size while previewing
    ・Customize foreground and background colors
    ・Overlay an image such as a logo onto the QR code
    ・Resize the logo, round its corners, and adjust its transparency
    ・Change the position of the logo
    ・Add a border and customize its thickness and color
    ・Automatically append the creation date to saved files
    ・Freely name the saved files
    ・Simple interface
    ・Compatible with smartphones and tablets
    ・Free to use
    ・No registration required for immediate use
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Last updated : 2024/12/08
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