Whitespace.
See who already built your idea — and the space they left open.

CLUSTER QUESTIONS-WORKSPACE-ANSWERS · 20 ENTRIES · EARLIEST ENTRY 2026-08-29

AI research Q&A workspaces

This cluster consists of workspace tools that ingest documents (PDF, TXT, web pages, transcripts, YouTube playlists) and answer user questions with cited sources, often using retrieval-augmented generation. The dated history before the index start is too thin to read a shape from—it predates the index or its members are undated. Among members with traction activity, thesys-core leads with 161 stars, followed by research-desk-open (3 stars) and note-lm (1 star).

Entry timeline

ENTRY TIMELINE

AUG 2026: 4SEP 2026: 11OCT 2026: 5
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 · 19 unlabelled

Operator · 13 hobby · 1 indie · 6 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 20 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01thesys-core161★20 days—indieResearch workspace that searches academic papers, uploads PDFs, highlights citations, and exports references in multiple formats.
  2. 02research-radar1★19 days—hobbyLocal-first academic discovery workspace that expands research topics, collects academic papers, and maps collaboration networks.
  3. 03note-lm1★19 days—hobbySelf-hosted research notebook that ingests PDFs, videos, and web pages, transcribes them in the background, and lets users chat with cited sources.
  4. 04Research-Desk1★3 days—hobbyLocal research workspace with a browser interface for organizing sources, notes and tasks, with retrieval and optional AI answers.
  5. 05research-desk-open3★2 moliveAn open-source research workspace that organizes ideas, literature, papers, schedules, and workflows for researchers.
  6. 06dq-questionbank-core5★1 moliveLocal-first visual workspace for creating, reviewing, and publishing educational question banks as Word documents.
  7. 07edward0★15 dayslivehand-codedhobbyLocal-first research and writing workspace that captures sources and evidence, indexes them, and lets users search or ask questions with answers traceable to original materials.
  8. 08KnowledgeStudio0★3 days—hobbyDesktop knowledge workspace that links notes, provides search and backlinks, annotates PDFs, and stores all data locally.
  9. 09researchos0★10 dayslivehobbyAI research workspace that ingests PDF papers, provides cited chat, paper comparisons, and relationship graphs for researchers.
  10. 10ai-knowledge-assistant0★18 days—hobbyWeb workspace that ingests PDF and TXT documents and answers questions with source citations using retrieval-augmented generation.
  11. 11proofline0★17 days—Financial research workspace that ingests documents into versioned datasets and answers questions with source-grounded citations.
  12. 12Research-paper-Multimodal-RAG0★7 days—Local research workspace that ingests academic PDFs and answers questions with citations linked to source pages.
  13. 13sr0★10 days—hobbyLocal research workspace for researchers that organizes papers, reading evidence, and project checkpoints into verifiable files and auditable agent workflows.
  14. 14yannian2★1 mo—hobbyLocal research workspace for reading papers, searching sources, asking AI questions on PDF selections, and managing research ideas.
  15. 15LocalScholar0★24 days—hobbyLocal system that retrieves academic papers and answers questions about them without external APIs.
  16. 16rag-notebook0★1 moliveWorkspace that ingests PDFs, web pages, transcripts, and YouTube playlists and answers questions with cited sources.
  17. 17MicrosoftFoundryLocalRag0★13 days—hobbyLocal assistant that indexes personal audio, PDFs, and notes, then answers questions with cited sources and shows retrieval reasoning.
  18. 18Inqurio0★18 days—hobbyResearch paper reading room that searches academic papers, maintains a personal library, and answers questions grounded in uploaded PDFs.
  19. 19Knowvia0★1 mo—Document intelligence workspace that ingests PDFs and lets teams chat with grounded answers cited to exact source pages.
  20. 20evidence-studio0★2 mo—hobbyResearch workspace that turns any question into an evidence-led, source-linked report with executive summary and findings.

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.