Hey all- forgot to label this properly as a "Show HN" in the title.

I recently built KnowBase – a free tool that lets you convert your own documents (PDF, DOCX, TXT) into a searchable knowledge base and knowledge graph, then connect it to a Custom GPT so you can query it conversationally.

I built this to improve my workflow, avoid re-handling files, and significantly enhance the lookup capabilities of my Custom GPTs. I wanted to give others the same ability to automate and personalise document access without needing to write code or manage infrastructure.

Features: - Upload and process PDFs, DOCX, or TXT - Automatic chunking and semantic embeddings via OpenAI - Supabase integration with pgvector - One-click export to create a Custom GPT - Full local control over data (your keys, your database)

Try it here: https://knowbase-chrisbuilds.replit.app/?utm_source=hn&utm_m...

Feedback welcome!