QR Code Generator
Generate a QR code from text or a URL.
Content
Size
Error Correction
Choose a higher level if you add a logo or the code may be damaged.
QR Code Preview
No QR code yet.
Enter content to generate a QR code automatically.
About This Tool
The QR Code Generator tool converts text or URLs into a QR code image. You can choose the image size (256px, 512px, or 1024px) and the error correction level (L, M, Q, or H), preview the result in real time, then save it as an image or copy it. Ideal for quickly sharing website addresses, contact details, event info, Wi-Fi access details, or short messages to a smartphone.
How to Use
Enter the content
Type the text or URL you want to encode in the input area. A QR code is generated automatically in the preview panel as you type.
Choose the size and error correction level
Pick an image size from 256px, 512px, or 1024px, and set the error correction level to L, M, Q, or H.
Review and save the result
Check the generated QR code in the preview, then use the download button to save it as an image or the copy button to copy it to the clipboard.
Key Features
Text and URL support
Encode website addresses as well as plain sentences, codes, and instructional text into a QR code.
Three image sizes
Choose from 256px, 512px, or 1024px depending on where you plan to use the code.
Error correction level
Pick one of four levels — L, M, Q, or H — to control how much damage or obstruction the QR code can recover from.
Real-time preview and result info
The preview updates instantly when you change the content or options, and the current image size and error correction level are shown alongside.
Download and copy
Save the QR code as an image file or copy it to the clipboard to paste it into other documents and services.
In-browser processing
Your input and the generated QR code stay in your browser — nothing is sent to a server.
Use Cases
Sharing website and document links
Turn long URLs into QR codes for print materials, presentations, and notices.
Event and store guidance
Let visitors open reservation pages, applications, menus, location guides, and surveys directly on their phones.
Business cards and promotional materials
Encode personal sites, portfolios, social profiles, and company pages into a QR code.
Sharing Wi-Fi and device settings
Encode Wi-Fi access details or configuration strings as text and share them via QR code. Automatic connection depends on the scanner app and input format.
Generating QR codes for print
Create QR codes at the needed resolution for posters, flyers, brochures, and stickers.
Frequently Asked Questions
What kind of content can I turn into a QR code?
You can enter URLs and plain text. What happens after scanning depends on the content format and the QR scanning app you use.
Which image size should I choose?
For screens or small documents, 256px or 512px works well. For printing or large placement, 1024px is better. Consider the print size and scanning distance when choosing a resolution.
What is the error correction level?
It adds redundant information so the content can still be recovered if part of the QR code is damaged or covered. Higher levels from L to H recover more but make the code denser.
How do L, M, Q, and H differ?
L has the lowest recovery ability and produces a simpler code. M is a balanced setting suitable for general use. Q and H offer more recovery ability for logo overlays or printing, but make the code denser.
Does a long URL make the QR code more complex?
Yes. Longer content produces a denser pattern of dots. If a URL is very long, using a shortened URL can make it easier to scan.
Can I enter Korean characters or special symbols?
Yes. Korean and many other characters can be encoded into a QR code. However, the scanning device and app must support the relevant character encoding to display them correctly.
How long does a generated QR code last?
A QR code itself has no expiration date. However, if the linked URL is changed or removed, scanning it may no longer open correctly.
What should I do if the QR code does not scan well?
Choose a larger image size, keep enough quiet space around the code, and maintain high contrast between the code and its background. Shortening very long content can also help.
Can I edit a generated QR code?
Changing the content or options generates a new QR code. To modify a saved QR code later, you will need to create a new one.
Is my input sent to a server?
No. All processing happens locally in your browser. Your input and the generated result are never transmitted to a server.
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