Tools & Demos

Converters, formatters, and AI experiments — free to use.

AI Demos

Live Production Systems

Ask Warren Buffett

RAG System

Chat with 47 years of Warren Buffett's shareholder letters. Production RAG implementation with semantic search, vector embeddings, and source attribution.

OpenAI EmbeddingsGPT-4o-miniAWS LambdaVector Search

Startup Idea Generator

LLM Integration

Transform your resume into personalized startup ideas with complete business plans, market analysis, and technical recommendations.

OpenAI GPT-4o-miniServerlessTypeScriptAstro
How These Are Built

Architecture

  • • Serverless on AWS Lambda
  • • API Gateway + CloudFront CDN
  • • Static frontend on S3

AI Stack

  • • OpenAI embeddings & GPT-4o-mini
  • • Vector similarity search
  • • RAG with source attribution

Development

  • • Built with Claude Code
  • • Astro + TypeScript
  • • Cost-optimized (~$0.01/query)

Developer Utilities

CSV to JSON JSON to CSV JSON Formatter Word & Character Counter Terminal Paste Cleaner