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CLUSTER ANSWERS-PDFS-QUESTIONS · 33 ENTRIES · EARLIEST ENTRY 2026-09-16

PDF Q&A with source citations

This cluster consists of web apps that let users upload PDFs, ask questions, and receive answers with citations to the source page. The dated history before the index start is too thin to read a shape from, with zero dated entries, so the cluster either predates the index or its members are undated. Among traction leaders, ai-document-assistant leads with 2 stars, followed by nanodoc with 1 star and oraculo with 0 stars.

Entry timeline

ENTRY TIMELINE

AUG 2026: 4SEP 2026: 14OCT 2026: 15
AUG 2026OCT 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 1 hand-coded · 12 unlabelled

Operator · 11 hobby · 2 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 13 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 21pdf-desk0★8 days—hobbyApp that answers questions about a PDF document and shows the exact page where each answer can be verified.
  2. 22pdf-chatbot0★4 dayslivehobbyWeb app that answers questions from uploaded PDFs, grounding responses in document content and citing source pages.
  3. 23docuchat-evidence0★3 days—hobbyDocument question-answering app that answers queries over uploaded PDFs or a demo arXiv corpus and returns cited source pages.
  4. 24rag-document-assistant0★3 days—hobbyLocal web app for PDF question answering that cites the source pages and runs fully offline without API keys or paid services.
  5. 25knowledge_based-RAG0★10 dayslivehobbyWeb app that answers questions about uploaded PDF documents by retrieving relevant passages and generating grounded responses with citations.
  6. 26HR-Assistant0★23 days—hobbyWeb app that answers questions about HR policies and uploaded documents, citing exact page numbers in its answers.
  7. 27HybridRAG0★20 days—hobbyLocal app that answers questions from uploaded PDFs by combining two retrieval methods and citing sources.
  8. 28pdf-intel-chat0★1 mo—Document Q&A app that answers questions from uploaded PDFs and links each answer to source pages and excerpts.
  9. 29DocuMind0★1 molivehobbyWeb app that answers questions about uploaded documents using only their content, providing verifiable citations back to the source passages.
  10. 30ferry-county-fair-assistant0★1 mo—hobbyWeb app that answers questions from a county fair handbook with AI and cites page numbers for verification.
  11. 31semantic-pdf-matcher0★1 mo—hobbyWeb app that searches uploaded PDF documents by meaning and returns relevant passages with source attribution.
  12. 32Lang-Chain-Q-A-Using-LLMS0★1 mo—hobbyWeb app that answers questions about uploaded PDFs or pasted webpage links, with responses translated into multiple languages.
  13. 33pdf-chatbot0★1 mo—hand-codedWeb application that answers questions from uploaded PDFs using retrieval and shows source excerpts.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.