QR Tools
WiFi 二维码生成器
Let guests join your WiFi by scanning a QR code - no password typing required. Enter your network name, password and security type, then download or print the code.
🔒 Your WiFi credentials are never uploaded - all processing happens locally in your browser.
How to Generate a WiFi QR Code
- 1. Enter your WiFi network name (SSID).
- 2. Choose the security type and enter your password.
- 3. Click Generate WiFi QR Code.
- 4. Download the QR code as PNG or SVG and print or display it near your router.
- 5. Guests point their phone camera at the code and tap the join prompt.
WiFi 二维码生成器 常见问题
2D QR Matrix Standards & Printing Guidelines
Quick Response (QR) codes are two-dimensional matrix symbologies standardized under ISO/IEC 18004. Equipped with Reed-Solomon error correction (ranging from Level L at 7% recovery up to Level H at 30% recovery), QR codes allow reliable scanning even if portions of the printed matrix suffer physical abrasion, smudging, or partial obstruction by custom logos.
Quiet Zone & Contrast Ratios
Always preserve a quiet zone border of at least 4 modules around the outer edge of the QR code. Avoid low-contrast color combinations (such as yellow on white); dark modules on light backgrounds deliver the fastest camera decode speeds.
Vector Print & Privacy Security
Export your finished code in SVG vector format for crisp, infinite scalability on large signage, product packaging, and business cards without pixelation. All generation and camera decoding executes 100% locally in your browser memory-no private credentials, URLs, or scans are ever uploaded to a server.
Additional Technical FAQs
What is the minimum recommended print size for reliable scanning?
For standard smartphone camera scanning at close range (0.3–0.5 meters), print QR codes at a minimum size of 2 x 2 cm (0.8 x 0.8 inches). For posters and billboards, use a 10:1 distance-to-size ratio (e.g., a code scanned from 2 meters away should be at least 20 cm wide).
Are generated codes permanent, and do they ever expire?
All codes generated on BeYourTools are static and permanent. The encoded data (such as your URL, text, or barcode number) is directly baked into the graphical modules with zero server redirection, meaning they will function forever without expiration.