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PowerUtils
2026-06-11•2 分鐘閱讀

如何免費線上製作自定義 QR Code

學習如何使用 PowerUtils 免費線上 QR Code 生成器製作帶顏色和尺寸的自定義 QR Code。適合名片、網站和行銷用途。

qr-codegeneratormarketingtutorial

What is a QR Code?



A QR Code (Quick Response Code) is a two-dimensional barcode that can be scanned by smartphones to quickly access information like URLs, contact details, or text messages.

Why Use QR Codes?



  • Business Cards: Share contact info instantly

  • Marketing Materials: Drive traffic to your website

  • Product Packaging: Provide additional product information

  • Events: Share tickets or registration links

  • Restaurants: Digital menus without physical contact


    • How to Use the QR Code Generator



    Step 1: Enter Your Content



    Go to the QR Code Generator and enter:
  • A website URL

  • Text message

  • Contact information

  • Or any data you want to encode


    • Step 2: Customize Appearance



  • Choose Colors: Select foreground and background colors

  • Set Size: Adjust the dimensions for your needs

  • Add Margin: Control the quiet zone around the code


    • Step 3: Download



    Click generate and download your QR code as a PNG image.

    Best Practices



  • Test Before Printing: Always scan with your phone first

  • High Contrast: Use dark colors on light backgrounds

  • Minimum Size: At least 2cm x 2cm for print materials

  • Error Correction: Higher levels allow damaged codes to still work


    • Related Tools



  • Base64 Encoder - Encode data for web use

  • Image Compressor - Optimize your QR code images

  • OG Image Generator - Create social media preview images


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