QR Code Generator は何をしますか？
QR Code Generator はブラウザ上で結果を生成するツールで、結果と制限を明確に示します。 検証済みの機能： Text and URL input, 256 to 1,024 px PNG, SVG download, Four error-correction levels.
Choose correction level by environment
Use M for ordinary clean screens and prints. Use Q or H when some damage or obstruction is expected, accepting a denser code or lower payload capacity.
使い方
- Enter the exact text or destination URL.
- Choose size, error correction, and high-contrast colors.
- Scan the preview on a separate device before downloading PNG or SVG.
実際の入出力例
Create a QR code for one URL
入力
https://kitlumi.com/出力
A scannable PNG or SVG containing the exact URLThe static QR payload is generated locally and does not redirect through KitLumi.
一般的なエラーと対処
| 症状 | 原因 | 対処 |
|---|---|---|
| The code does not scan. | Contrast, quiet margin, size, payload density, or distortion is unsuitable. | Use dark foreground on a light background, preserve the margin, and test the final size. |
| The scan opens the wrong location. | The original input contains a typo or stale URL. | Inspect and test the exact decoded payload before distribution. |
Scan the final medium
このツール固有の制限： Low contrast, insufficient quiet margin, excessive payload, physical distortion, or very small printing can prevent a scan. Test the final printed or displayed code.
標準と実装の参考資料
- node-qrcode official repository (opens in a new tab)Documents the QR encoder and correction settings used by the page.
QR Code Generator — FAQ
Is QR content uploaded?
No. The matrix, preview, PNG, and SVG are generated in the browser.
Does a static QR code expire?
No. The destination can still stop working if the encoded URL changes or becomes unavailable.
Which correction level is suitable?
M is suitable for ordinary clean prints; Q or H trades capacity for more damage recovery.
更新内容
実質的な更新： QR Code Generator: Added local QR generation, four error-correction levels, configurable colors and size, clipboard PNG, and PNG or SVG download.