pdf-brain: Open-Source Tool Builds a Fully Local Semantic Search Index for PDFs and Markdown

A new open-source utility called pdf-brain lets users index their PDF and Markdown files entirely on their own machines, adding semantic search and AI-driven metadata enrichment without sending documents to the cloud. The project, published on GitHub by developer Joel Hooks, targets a growing appetite for local-first knowledge bases that keep private documents off external servers while still offering the kind of meaning-based search normally associated with hosted AI services.