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AI / Open Source
QA Creator
The QA Creator App is an intelligent question-answer generation platform built with FastAPI, LangChain, FAISS, and Hugging Face models. Users can upload PDF documents, process embeddings, and generate contextual questions and answers.
AI PoweredRAGBackendOpen Source
Problem
Students and educators need faster ways to turn long PDF materials into useful study questions and contextual answers.
My Role
AI-focused full-stack developer responsible for the React interface, FastAPI backend, RAG pipeline, document parsing, and export workflow.
My Contribution
- Built responsive frontend screens for PDF upload, generation status, and Q&A review.
- Created REST API integration with a FastAPI backend.
- Implemented document parsing, chunking, embedding, and vector search flow with LangChain and FAISS.
- Integrated LLM-based question and answer generation for contextual study output.
- Added CSV export, loading states, validation, and error handling for long-running AI tasks.
Key Features
- PDF upload and parsing.
- Document chunking and embedding pipeline.
- Vector retrieval with FAISS.
- LLM-generated questions and answers.
- CSV export for generated Q&A pairs.
Tech Stack
React.jsJavaScriptPythonFastAPILangChainFAISSHuggingFaceLLMsTailwindCSSPDF Processing
RAG question generation flow
Document/Data
Chunking
Embeddings
Vector DB
LLM
Answer
Challenges & Solutions
Long documents need to be processed into useful context before answer generation.
Used chunking, embeddings, and vector search so the generation step receives focused source context.
AI generation can take time and needs clear UX feedback.
Designed a dashboard-style flow with status feedback and export-ready results.
Screenshots / Demo
The repository is available for review. Portfolio demo media can be added when a hosted version is ready.
Screenshot placeholder
Live workflow preview
Demo video coming soon
Result / Impact
Practical proof of full-stack product development.
The project demonstrates a complete AI/RAG workflow from document ingestion to generated educational output.
Build Something Similar
Need a custom web app, dashboard, AI chatbot, or automation tool?
Contact me to discuss a project like QA Creator, or a custom solution for your business workflow.