HiteshAI, my solo-built AI chatbot (Dec 2025). Clean ChatGPT-style interface in one HTML file: dark mode, voice input/TTS, image/PDF upload, chat history, multi-language.
HiteshAI, my AI Chatbot That I Built Completely Solo
Hey everyone! I'm Hitesh V, a 7th grader at Olentangy Liberty Middle School in Powell, Ohio (born March 26, 2013). I started getting really into coding, AI, cybersecurity, rocketry and space when I was little. I even founded AstroClub at my school so kids could learn about space and rockets together. But a lot of people bullied me for working on "weird" projects instead of just playing games like everyone else. That actually made me want to build something even cooler so in December 19 2025 I created HiteshAI all by myself.
HiteshAI is a full modern chatbot interface that looks and feels a lot like old ChatGPT, but it's 100% my own work (except the actual AI brain, which comes from an API through OpenRouter because I'm using open-source friendly models). Everything you see is written in one single HTML file with vanilla CSS and JavaScript, no frameworks, no React, just pure code I wrote.
Here are some of the coolest things I built into it:
• Clean sidebar with saved chat history (saved forever in your browser using localStorage) • Dark mode + light mode toggle (I love dark themes for late-night coding 🌙) • Voice input using your microphone + text-to-speech so it can read answers out loud 🎤🔊 • Upload images (PNG/JPG) and PDFs so the AI can look at them and talk about what’s inside • Message editing, regenerating answers, copying responses, and exporting full chats • Multi-language support (English, Spanish, French, German, Chinese, Hindi, Arabic) • Typing animation so it feels alive while thinking • Suggested starter prompts about math homework, coding games, rocket science and creative stories • Beautiful design with my favorite blue color (#2C64BA) and Lexend font
Right now it connects to any model via OpenRouter’s free tier or any tier, but the dream is to fine-tune my own versions based on Meta’s open Llama models (because they’re open-source and powerful). That’s why I named my company HiteshAI Labs — this is just the first big project!
I’m part of NASA STEM Gateway and I spend a lot of time learning about rockets, space missions, coding secure systems, and building AI that can help people. My biggest goal? Get into MIT one day and keep making projects that actually change the world for the better especially for other kids who love science and tech but sometimes feel left out.
Made with passion in Ohio by a 12-year-old who believes AI + rocketry + hard work = future. HiteshAI Labs, because the next big thing might come from a middle school bedroom.
Star the repo if you like it, it really helps me keep going! 🌟
- The new HiteshAI uses its own LLM! Based off of Meta Llama's Maverick Source Code