QR Code Generator
Generate customizable QR codes from any text or URL.
This tool is for informational and educational purposes only. It is not a substitute for professional financial, medical, legal, or engineering advice. See Terms of Service.
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Request a ToolHow to Use the QR Code Generator
Creating a QR code with this tool takes just a few steps. Everything runs in your browser, so your data never leaves your device.
- Enter your content. Type or paste any text, URL, email address, or Wi-Fi credentials into the text field. The tool supports up to 300 characters, which covers most use cases including long URLs with tracking parameters.
- Choose a size. Select the output dimensions from the dropdown. 300x300 works well for screen sharing and documents. Choose 500x500 if you need a high-resolution version for print materials like posters or business cards.
- Set error correction. Error correction determines how much damage a QR code can sustain and still be readable. Level L is fine for digital use. For printed codes that may get scratched or partially covered, use Q or H.
- Pick your colors. Use the color pickers to set foreground and background colors. Keep high contrast between the two so scanners can read the code reliably. Dark foreground on light background works best.
- Generate and download. Click "Generate QR Code" to create your code. Preview it on screen, then click "Download PNG" to save the image file. Use the Share button to send a link that recreates the same QR code.
About QR Codes
QR (Quick Response) codes are two-dimensional barcodes invented in 1994 by Denso Wave for tracking automotive parts. They encode data in a grid of black and white squares that can be read by any smartphone camera. Unlike traditional barcodes that store data in one direction, QR codes use both horizontal and vertical patterns, allowing them to hold significantly more information in a compact space.
QR codes include built-in error correction based on Reed-Solomon algorithms, meaning they remain scannable even when partially damaged or obscured. This makes them reliable for printed materials, product packaging, restaurant menus, event tickets, and contactless payment systems. The four error correction levels (L, M, Q, H) let you balance data capacity against damage tolerance depending on your use case.
Frequently Asked Questions
How much text can a QR code hold?
This generator supports up to 300 characters, which covers the vast majority of use cases. The exact capacity depends on the error correction level you choose. At Low (L) correction, version 10 QR codes hold up to 271 bytes. Higher correction levels reduce capacity because more space is used for redundancy data.
Which error correction level should I use?
For digital use (screens, emails, websites), Level L or M is sufficient. For printed materials that may get worn or dirty, use Q or H. Level H can recover from up to 30% damage, making it ideal for stickers, outdoor signage, or codes placed on products that get handled frequently.
Can I use custom colors for my QR code?
Yes. Use the color pickers to set any foreground and background color. For reliable scanning, maintain strong contrast between the two colors. Dark modules on a light background generally scan better than the reverse. Avoid very low contrast combinations like yellow on white or dark blue on black.
Is my data sent to a server?
No. The QR code is generated entirely in your browser using JavaScript. Your text, URLs, or any other input never leaves your device. There is no server-side processing, no account required, and no data stored anywhere.