What can I encode in a QR code?

Any text up to ~4,000 characters: URLs, plain text, email addresses, phone numbers, Wi-Fi credentials, and more.

What size should I use?

256x256 works for most screen displays. Use 512+ for print materials. The QR code scales without losing quality.

What can I encode in a QR code?

Any text up to ~4,000 characters: URLs, plain text, email addresses, phone numbers, Wi-Fi credentials, and more.

What size should I use?

256x256 works for most screen displays. Use 512+ for print materials. The QR code scales without losing quality.

無料

QRコードジェネレーター

URLやテキストからQRコードを生成。PNGでダウンロード。

100%無料登録不要ブラウザで実行

テキストまたはURL

サイズ: 256x256px

QRコードがここに表示されます

QR Code Generatorについて

Generate QR codes from any URL, text, or data. Customize the size and download as PNG. Perfect for sharing links, Wi-Fi credentials, contact info, or any text data.

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Meta Tag / OG Preview

Preview how your site looks when shared on social media.

See exactly how your webpage will appear when shared on Twitter, Facebook, LinkedIn, and other platforms. Paste any URL to preview the title, description, and image that social networks will display. Catch missing or broken meta tags before you share.

Favicon Generator

Create favicons from custom text or initials.

URL Encoder / Decoder

Encode and decode URL strings online.

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LaunchChatウィジェットリンクをQRコードで共有して、モバイルからの簡単アクセスに。

クレジットカード不要

Put a QR code on your product packaging or business card that opens an AI chatbot — instant support, zero app install.

Free tier available. No credit card required.

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