DevToolBox無料
ブログ

QRコード生成

テキスト、URL、任意のデータからQRコードを生成。PNGでダウンロード可能。無料で登録不要。

QR Code Preview

About QR Codes

QR (Quick Response) codes are two-dimensional barcodes that can store URLs, text, contact info, and more. They can be scanned by any smartphone camera. This tool generates QR codes with error correction for reliable scanning.

𝕏 Twitterin LinkedIn

💬 User Feedback

Have suggestions or found a bug? Leave a message and we'll get back to you.
0/2000

このツールを評価

4.2 / 5 · 163 件の評価

その他のツール

⭐Favicon生成🖼️プレースホルダー画像生成🔗URLスラッグ生成🏷️Metaタグ生成

Recommended

DigitalOceanCloud hosting from $4/mo

最新情報を受け取る

毎週の開発ヒントと新ツール情報。

スパムなし。いつでも解除可能。

Enjoy these free tools?

☕Buy Me a Coffee

How to Use

  1. Enter the text or URL you want to encode
  2. The QR code generates automatically
  3. Download the QR code as a PNG image
  4. Scan with any smartphone camera to verify

Common Use Cases

  • Sharing URLs and links
  • Business cards and marketing materials
  • WiFi network sharing
  • Event tickets and check-in systems

Frequently Asked Questions

What is a QR code?
QR (Quick Response) code is a two-dimensional barcode that stores data like URLs, text, or contact info. It can be scanned by smartphones and QR readers.
What data can I encode?
You can encode any text: URLs, email addresses, phone numbers, WiFi credentials, plain text, and more.
Can I download the QR code?
Yes. Click the Download button to save the QR code as a PNG image that you can use in print or digital materials.