Full-Stack Engineer | Founder of CODEEX-AI | Building the Future with AI & Web Technologies
I'm Harsh Saini, professionally known as Heoster — a passionate Full-Stack Engineer, student, and founder from Khatauli (Muzaffarnagar, Uttar Pradesh), India.
I specialize in building innovative AI-powered applications and seamless web experiences. I love combining cutting-edge AI technology with beautiful, responsive design to create solutions that make a real impact.
Currently studying Class 12 PCM at Maples Academy Khatauli, and founder of CODEEX-AI. Driven by the belief that advanced AI tools should be accessible to everyone at zero cost, I focus on building open-source platforms, intelligent auto-routers, and full-stack developer applications that serve users worldwide.
Always learning. Always building. 🔥
Intelligence should be free, fast, and useful for everyone.
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Languages: JavaScript, TypeScript, Python, HTML/CSS
Frontend: React 18, Next.js 14+, Vite, TailwindCSS, GSAP, Three.js
Backend: Node.js, Express, Firebase, MongoDB, PostgreSQL
AI / ML: LangChain, OpenAI, Groq, Gemini, Claude, Hugging Face,
Cerebras, DeepSeek, OpenRouter, Whisper, FLUX
Tools: Git, Docker, Linux, VS Code, Vercel, Netlify, Codex
| Project | Description | Links |
|---|---|---|
| MY Portfolio | Interactive 3D portfolio with GSAP animations and dynamic web graphics | Live |
| SOHAM | Free AI platform aggregating 35+ models across top providers. Intent-detecting auto-router classifying queries into 13 types, live web search, PDF analysis, and voice synthesis | Live |
| CODEEX-AI | Conversational intelligence platform — smart AI routing, visual problem solving, slash commands, multi-chat management | Live |
| CloudStore | Full-featured cloud storage web app to manage, organize, and preview files, scripts, and documents online | Live |
| Codeex-v5 | Desktop GUI for Ollama — auto-setup, real-time streaming, local chat storage, voice synthesis, 20+ open-source AI models | GitHub |
| Codeex-v3 | AI assistant with automatic provider fallbacks, web search, mobile-first design built with Next.js 14 | GitHub |
| Codeex-focus | Focus productivity web app — personalized timetables in five minutes | GitHub |
| Jarvis | Personal AI assistant powered by Transformers, LangChain, and real-time web capabilities | GitHub |
| Sri Shakumbhari Devi Mandir Portal | Community donation and tracking portal for a temple in Rampur, Khatauli — verified donor receipts and WhatsApp sharing | Live |
| Codeex Studio / ClassBoard | Interactive digital whiteboarding and teaching tool for classroom use and presentations | Live |
- SOHAM AI Platform — multi-provider AI orchestration with 26–35+ models
- CODEEX-AI Solutions — custom AI integrations & smart applications
- Personal Portfolio — interactive 3D + GSAP
✅ AI Platform Development — custom AI solutions & integrations
✅ Full-Stack Web Applications — modern, scalable solutions
✅ PWA Development — progressive web apps with native features
✅ 3D Web Experiences — interactive & immersive interfaces
✅ Performance Optimization — speed & SEO improvements
✅ Technical Consulting — guidance on architecture & best practices
✅ Authentication & Security — JWT, OAuth, session flows, validation schemas
- Full-Stack Development: specialized models (DeepSeek R1, Claude) for boilerplates, clean React/Next.js components, TypeScript refactors, and rapid API debugging
- Authentication & Security: audit auth flows (JWT, OAuth, sessions), verify authorization middleware edge cases, generate secure validation schemas
- SEO Optimization: structured JSON-LD, optimized metadata (title tags, dynamic OpenGraph cards), semantic HTML, automated sitemaps
- Development Workflow: automated refactoring, inline docs, unit tests, database/storage access optimization
I'm always open to exciting opportunities, collaborations, and discussions about AI, web development, and tech innovation.
- GitHub: github.com/Heoster
- X (Twitter): @The_Heoster_
- Instagram: @codeex._.heoster
- LinkedIn: linkedin.com/in/codeex-heoster
- Portfolio: heoster.vercel.app
- CODEEX-AI: codeex-ai.vercel.app
- Email: codeex@email.com
Built with ❤️ in Khatauli, India
Harsh Saini · Heoster · Founder, CODEEX-AI
Last updated: September 2026
⭐ From Heoster