Upload long documents, build intelligent indexes, and get precise answers with page-level citations. No vector database, no chunking — just human-like reasoning.
Upload
PDF, Markdown, DOCX
Index
Hierarchical tree
Query
Cited answers
Three simple steps to intelligent document understanding
Drag & drop your PDFs, Markdown, or DOCX files. We parse every page intelligently.
Our LLM creates a hierarchical tree index — no vector embeddings, no chunking needed.
Query your documents naturally. Get precise answers with page-level citations.
Built for professionals who need reliable document intelligence
Uses hierarchical tree indexing and LLM reasoning instead of vector similarity search. Think like a human expert.
Every answer comes with precise page references. Full traceability and explainability for professional use cases.
Multi-tenant workspaces with role-based access control. Invite your team, manage documents, and track usage together.
What our beta users are saying
“PageIndex replaced our entire RAG pipeline. The accuracy on financial docs is unmatched — we finally trust automated answers.”
Sarah Chen
VP of Research, Meridian Capital
“We went from 72% to 98% answer accuracy overnight. The page-level citations are a game changer for our compliance team.”
David Park
Head of Engineering, LegalFlow
“Setup took 5 minutes. No vector DB, no infra headaches. My team of analysts queries 500-page reports in seconds now.”
Maria López
Director of Analytics, NovaBio