What does the QR Code Generator create?
The KitLumi QR Code Generator encodes text into a two-dimensional QR matrix and renders it as a browser canvas. PNG is appropriate for common digital use; SVG remains sharp at different print sizes.
How do you make a QR code?
- Enter the exact text or destination URL.
- Choose output size, error correction, and high-contrast colors.
- Scan the preview with a separate device, then download PNG or SVG.
Which error-correction level should you use?
| Level | Approximate recovery | Choose it for |
|---|---|---|
| L | 7% | Clean screens and dense payloads |
| M | 15% | General use |
| Q | 25% | Printed materials with wear |
| H | 30% | Harsh conditions or limited obstruction |
Why might a QR code fail to scan?
Low contrast, insufficient quiet margin, excessive data, physical distortion, or printing too small can prevent a scan. Test the final printed or displayed code, not only the browser preview.
Frequently asked questions about QR Code Generator
Is QR code content sent to a server?
No. The QR matrix, canvas preview, PNG, and SVG are generated in the browser.
Which error-correction level should I choose?
Choose Medium for ordinary clean prints. Choose Quartile or High when the code may be scratched, partly covered, or printed in a demanding environment.
Can I use custom QR code colors?
Yes, but the foreground should remain much darker than the background. Low contrast and transparent backgrounds reduce scanning reliability.
Does a generated QR code expire?
A static QR code does not expire. The destination can stop working if the encoded URL changes, is removed, or requires unavailable access.
What changed?
Added local QR generation, four error-correction levels, configurable colors and size, clipboard PNG, and PNG or SVG download.