Voice Chat with ChatGPT
AI-powered voice chat using OpenAI API. Supports real-time speech recognition and voice synthesis in your language. Mobile browser friendly.
Microphone FFT Analyzer
Real-time FFT display of microphone audio. A simple and clean demo of frequency spectrum analysis. Works on desktop and mobile.
IP Geolocation Service
Free geolocation by IP address. Returns JSON with city, region, country, and more. Example: /geo/geoip.php
IP Info Proxy
A cached redirector to ipinfo.io, allows both your and custom IP lookup. Example: 8.8.8.8
PDF AI Analyzer
Summarize and extract keywords from uploaded PDF documents using OpenAI API. Upload and get results instantly.
QR Code Generator
Generate QR codes using a lightweight C# .NET 8.0 backend hosted on Ubuntu ARM64. Clean and fast.
Solar System Simulation
Interactive JavaScript-based demo of a simplified solar system. View planetary orbits and rotation in 3D.
FB2 Document Translator
Translate FB2 e-book documents using GPT-4Free backend. Tag-preserving translation with caching and progress tracking.