QR Code 產生器
輸入文字或 URL，立刻產生 QR Code！
等級越高，QR 碼即使部分損壞也能掃描，但圖案會更複雜。
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背景色
在上方輸入文字或 URL 來產生 QR Code
QR 碼產生器是什麼？
The QR Code Generator instantly converts URLs, plain text, contact information, and more into downloadable QR code images. Generated codes can be saved in PNG or SVG format with custom colors and sizes. Create unlimited QR codes for free — no account needed. QR codes (Quick Response codes) were invented in 1994 by Denso Wave for tracking automotive parts and have since become ubiquitous — from restaurant menus and event tickets to payment systems and product packaging. They can store up to 4,296 alphanumeric characters. This tool generates QR codes entirely in your browser with no server processing, ensuring your data stays private. Customize colors to match your brand, choose your preferred size and format, and download instantly for use in print materials, websites, or digital communications.
- ✓ 可從網址、文字、聯絡資訊等多種內容產生 QR 碼
- ✓ 支援自訂顏色與尺寸，可下載為 PNG 或 SVG
- ✓ 無需註冊，免費無限制使用
- ✓ 100% client-side generation — your data never leaves your browser
- ✓ High-resolution output suitable for both print and digital use
常見問題
▶什麼是 QR Code？
QR Code 是一種二維條碼，可以儲存文字、URL 和其他資料，用手機相機就能掃描讀取。
▶文字長度有限制嗎？
QR Code 最多可儲存約 4,296 個字元，但內容越短產生的 QR Code 越清晰、越容易掃描。
▶QR Code 可以商業使用嗎？
可以！這裡產生的 QR Code 免費提供任何用途使用，不管是個人或商業都行。
▶What can I encode in a QR code?
You can encode URLs, plain text, email addresses, phone numbers, Wi-Fi credentials, vCard contact information, calendar events, and more. The maximum capacity is about 4,296 alphanumeric characters or 7,089 numeric characters.
▶Do QR codes expire?
Static QR codes (like those generated here) never expire — they permanently encode the data. However, if the QR code points to a URL, the link itself could become inactive if the website is taken down.
▶What size should my QR code be for printing?
For reliable scanning, QR codes should be at least 2 cm x 2 cm (0.8 in) for close-range scanning. For posters or signs viewed from a distance, increase the size proportionally — roughly 25 mm per meter of scanning distance.
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