# PageIndex

[Product intro] PageIndex is a reasoning-based document retrieval engine with a vector-database-free architecture. It turns documents into tree-like hierarchical indexes that mimic how human experts read and extract information, then uses large language models for reasoning retrieval. [Core features] Structured index: convert PDFs into directory-like trees that keep full document hierarchy. Reasoning retrieval: tree search for context-aware extraction without vector similarity matching. Traceability: clear page and section citations with transparent, explainable retrieval. Zero infra: no vector DB, chunking, or embedding pipeline. On the FinanceBench financial-document analysis benchmark it reaches 98.7% accuracy—suited to financial reports, legal docs, technical manuals, and other long professional documents. Open-source repo: https://github.com/VectifyAI/PageIndex

[Product intro] PageIndex is a reasoning-based document retrieval engine with a vector-database-free architecture. It turns documents into tree-like hierarchical indexes that mimic how human experts read and extract information, then uses large language models for reasoning retrieval. [Core features] Structured index: convert PDFs into directory-like trees that keep full document hierarchy. Reasoning retrieval: tree search for context-aware extraction without vector similarity matching. Traceability: clear page and section citations with transparent, explainable retrieval. Zero infra: no vector DB, chunking, or embedding pipeline. On the FinanceBench financial-document analysis benchmark it reaches 98.7% accuracy—suited to financial reports, legal docs, technical manuals, and other long professional documents. Open-source repo: https://github.com/VectifyAI/PageIndex

Canonical: https://uniquebase.ai/products/pageindex
Stable identifier: UB-D8144
Snapshot captured: 2026-10-29T00:45:28.937Z
English updated: 2026-10-29T00:52:59.606Z

## Connected profiles

- [PageIndex](/companies/pageindex)

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