QR Code Generator

Create custom QR codes with colors and downloadable PNG/SVG

🔒 100% ブラウザ内🆓 ずっと無料⚡ サインアップ不要
注意: 下記のツールインターフェースは現時点で英語のみに対応しています。UI の翻訳は順次進めています。 このツールを英語で見る →

Higher error correction survives more damage but stores less data. Tip: for Wi-Fi use WIFI:T:WPA;S:MySSID;P:MyPass;;

使い方

  1. 1
    Enter content

    Type a URL, text, or a formatted string like WIFI:T:WPA;S:MySSID;P:MyPass;;

  2. 2
    Style it

    Pick foreground and background colors, size, and how much damage the code should survive.

  3. 3
    Download

    Save as PNG (raster, great for social) or SVG (crisp at any size - great for print).

QR Code Generator について

Free online QR code generator. Encode URLs, plain text, Wi-Fi credentials, or vCards. Customize colors, size, and error-correction level, then download as PNG or SVG. Runs entirely in your browser - nothing is uploaded. 712 Tools の QR Code Generator はモダンな JavaScript API を使って完全にブラウザ内で動作します - サーバーがあなたのデータを見ることは一切ありません。つまり、即時の結果、完全なプライバシー、アップロード制限なしです。

デバッグ、簡単な確認、あるいは本番のインシデント対応まで - このツールは何度でも無料で使えます。ウォーターマークなし、サインアップなし、ツール内広告なし。

よくある質問

What is error correction level?

L=7%, M=15%, Q=25%, H=30% of the code can be damaged and still scan. Higher levels mean a denser code that stores less data.

Do you track scans?

No. The generated code is static - it points to whatever URL or text you entered, with no redirect or tracking layer.

Can I use this for logos?

Yes - use error correction level H, then overlay a logo on top of the finished QR in a design tool.

続きを読む

4 分で読了

QR code formats: encoding Wi-Fi, contacts, calendars, and payments

A QR code is just text - but the right prefix turns it into a Wi-Fi login, a saved contact, or a calendar invite. Here are the standard formats worth knowing.

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