QR Code Generator

What is a QR code generator?

A QR code generator is an online tool that converts information such as URLs and text into two-dimensional codes, making them easy to scan with a smartphone or tablet camera.QR codes are used in a variety of situations, such as when you want to include a website URL on printed materials, direct visitors to an information page at an event venue, share a store’s Wi-Fi connection details, or include contact information on a business card. On this page, you can create a QR code in the format that best suits your needs simply by selecting a common use case.

This tool supports not only regular text and URLs, but also QR codes for Wi-Fi connections, composing emails, making phone calls, sending SMS messages, and vCard-format QR codes that make it easy to save contacts.For example, if you select Wi-Fi, you can generate a format that’s easy for compatible devices to scan and connect to simply by entering the SSID, password, and encryption method. If you select email, you can create a mailto link that includes the recipient, subject, and body.

Since the generated QR codes can be saved as PNG images, they are easy to embed in flyers, documents, web pages, and social media posts. Additionally, saving them in SVG format helps maintain image quality even when scaled up, making them ideal for printed materials and design files.You can also choose the size, margins, and error correction level, allowing you to balance readability and appearance according to your specific needs.

While QR codes are convenient, they also make it difficult for users to determine whether the destination is safe. When using them publicly, it is important to avoid URLs that are too short to make sense or that appear suspicious, and to use trustworthy domains whenever possible.Also, if you include Wi-Fi passwords or personal contact information in a QR code, be sure to check where you are posting it to ensure it is in a location accessible only to authorized individuals.

• Supports URLs, text, Wi-Fi, email, phone numbers, SMS, and vCard.
• You can download the QR code as a PNG image.
• You can also save them in SVG format, which is easy to use for print materials and design.
• You can select the size, margins, and error correction level.
• You can review and copy the content embedded in the QR code.
• Input data is processed in the browser, so there is no need to generate QR codes on the server side.

How to Use the QR Code Generator

First, select the “QR Code Type.” Choose “URL” to direct users to a web page; “Text” to embed a short message or note; “Wi-Fi” to share Wi-Fi information with visitors; or “Email” to open an email composition window. To share a phone number, SMS, or contact information, select “Phone Number,” “SMS,” or “vCard,” respectively.Only the input fields necessary for the type you select will be displayed, so you can create your QR code without any confusion.

After entering the content, select the image size, margins, and error correction level as needed. Typically, the default settings are sufficient.If you plan to print the QR code in a large format, make it larger and ensure there is sufficient margin around it. Setting the error correction level higher increases the likelihood that the code can still be scanned even if part of it is smudged or missing, but this may result in a higher density QR code. If you plan to overlay a logo or make other modifications, be sure to perform a scan test.

When you click “Generate QR Code,” the QR code will appear in the results area and preview at the top of the screen. If the results area is off-screen after generation, the page will automatically scroll to the results area, preventing a situation where it’s hard to tell that anything has changed after clicking the button. You can download the generated QR code as a PNG or SVG file.We recommend testing the QR code by scanning it with a smartphone camera or a QR code reader app before distributing or printing it.

1. Select the type of QR code.
2. Enter the required information, such as the URL, text, Wi-Fi details, and email information.
3. Adjust the size, spacing, and error correction level as needed.
4. Click "Generate QR Code."
5. Scan the displayed QR code with your smartphone to verify it.
6. Download in PNG or SVG format depending on your needs.

Important Notes for Use

• Do not inadvertently include confidential information—such as passwords, personal information, or internal URLs—in QR codes that you publish.
• When using shortened or redirected URLs, please be aware that this can make it difficult for users to determine the destination of the link.
• When using QR codes in printed materials, please test their readability at actual size. QR codes that are too small or have insufficient margins may be difficult to scan.
• Wi-Fi QR code support may vary depending on the device or operating system. For important instructions, it’s a good idea to also include the SSID and password in text form.
• When changing colors or overlaying logos, maintain contrast and spacing, and be sure to check readability on multiple devices.

Frequently Asked Questions

What is a QR code?

A QR code is a black-and-white two-dimensional code that represents information such as URLs and text. By scanning it with a smartphone camera or similar device, you can open a web page or retrieve text information.

Can you generate a QR code for a URL?

Yes. Select a type, enter the URL of the web page you want to convert to a QR code, and the system will generate a QR code that makes it easy to open that page when scanned.

Can you generate a QR code for connecting to Wi-Fi?

Yes. Once you enter the SSID, password, and encryption method, you can generate a QR code in a format that makes it easy to connect to Wi-Fi when scanned by a compatible device.

What is the difference between PNG and SVG?

PNG is a format that is easy to work with as an image and simple to embed in web pages and documents. Since SVG is a vector format, image quality does not degrade easily even when scaled up, making it well-suited for print materials and design purposes.

What is the error correction level?

This mechanism ensures that QR codes can still be scanned even if part of them is smudged or damaged. Increasing the level improves error correction, but may result in a more intricate QR code. Level M is usually sufficient.

Which QR code size should I choose?

If you’re only using them on web pages or in documents, around 256px is usually sufficient. If you’re using them in large sizes for printed materials or posters, choosing a size of 384px or larger or using the SVG format will make them easier to work with.

Is it okay to overlay the logo on the QR code?

This is possible, but if the text is overlapped too much in the center, it may become unreadable. When editing the design, set the error correction level to high and be sure to test readability on multiple devices.

Can Japanese text and emojis be converted into QR codes?

Yes. As long as you enter it as text, you can include Japanese characters and emojis in the QR code. However, the way it appears may vary depending on the scanning app or the environment in which it is used.

Can the QR codes I create be used for commercial purposes?

QR codes generated with this tool can be used on flyers, business cards, store guides, event materials, and more. However, please verify the rights and terms of use for the linked content and any embedded material yourself.

What is the reason the QR code cannot be scanned?

The main causes include small font sizes, insufficient margins, poor print quality, low contrast with the background, content that is too long or code that is too detailed, and important parts being obscured by editing.

Is it okay to convert the shortened URL into a QR code?

While technically possible, this makes it difficult for users to understand where the links lead. In situations where reliability is important, we recommend using URLs from the official domain whenever possible.

Can I change the content of a QR code later?

You cannot change the content embedded in a generated QR code. While you can change the content of the page linked to, you must regenerate the QR code if you want to change the URL or text within it.