Captive Portal Generator

Captive Portal Generator is the ultimate tool for creating stunning, self-contained WiFi captive portal HTML pages directly from your Android phone. Whether you're an IoT developer provisioning ESP32 devices, a business owner setting up guest WiFi, or a maker building BLE Nano projects — this app lets you design, customize, and deploy professional-grade captive portals in seconds.

WHY CAPTIVE PORTAL GENERATOR?

🔧 BUILT FOR IOT DEVELOPERS
Generate HTML that fits on constrained devices like ESP32, ESP8266, Arduino Nano 33 BLE, and other microcontrollers. Choose from three optimization modes (Full, Balanced, Nano/BLE) with live size tracking — see exactly how many KB your portal uses before you deploy.

📱 TEST ON YOUR REAL PHONE
Start a local HTTP server with one tap and scan the QR code to preview your portal on any device on the same network. No cables, no uploads — instant testing.

🎨 CUSTOMIZE EVERY DETAIL
• Add custom logos (base64 embedded)
• Choose from 6 color themes or create your own
• Toggle Dark Mode and Glassmorphism effects
• Configure shadow depth, border radius, and font size
• Add Social Login buttons (Google + Apple)
• Include Terms & Conditions with acceptance checkbox
• Web Bluetooth support for direct BLE device provisioning

📋 POWERFUL FORM BUILDER
• 12 field types: Text, Email, Password, Phone, Number, Date, Checkbox, Text Area, Dropdown/Select, Star Rating, Signature Pad, Toggle Switch
• Drag-and-drop reordering with long press
• Conditional visibility (show fields based on other field values)
• Import and export designs as JSON

💾 SAVE, EXPORT & REUSE
• Save unlimited designs in your personal gallery
• Export HTML files for direct upload to your devices
• Copy raw HTML to clipboard instantly
• 8 professional ready-made templates:
- IoT Device Setup (for sensors & BLE hardware)
- Coffee Shop WiFi (for cafes & restaurants)
- Hotel Guest Network (for accommodations)
- Event / Conference WiFi
- Corporate Guest Access
- Smart Home / BLE Setup
- Public Library / Kiosk
- And more!

⚡ ADVANCED FEATURES
• Star Rating field for guest feedback
• Signature Pad for digital agreements
• Offline queue — retries when connection is restored
• Captive portal detection helpers (Android, iOS, Windows)
• Configurable API endpoint URL
• Success/error messages and redirect URLs
• Confetti animation on successful submission

PERFECT FOR

☑ ESP32 / ESP8266 developers and makers
☑ BLE Nano & Arduino IoT projects
☑ Coffee shops, hotels, and restaurants
☑ Event organizers and conference WiFi
☑ Corporate visitor networks
☑ Public libraries and community spaces
☑ Smart home device provisioning
☑ Hobbyists and hardware hackers

HOW IT WORKS

1. Open the app and customize your portal design
2. Add form fields, choose colors, and configure settings
3. Preview the live HTML instantly with the built-in WebView
4. Start the test server and scan the QR code to test on your phone
5. Save the HTML file or copy it to your clipboard
6. Upload the HTML to your ESP32, BLE Nano, or web server
7. Users connect to your WiFi and see your custom portal!

COMPATIBILITY

• Generated HTML works on ANY device with a browser
• Self-contained — NO external dependencies, NO CDN, NO internet required
• Output optimized for ESP32 (Balanced mode: ~15KB, Nano mode: <8KB)
• Works with any HTTP server (ESPAsyncWebServer, NanoHTTPD, NodeMCU, etc.)