ChatPDF is a document question-answering app: upload a PDF, ask questions in plain language, and get answers with built-in citations that point back to the source passage.
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AI tools for research
3,708 live tools · ranked by monthly traffic and community votes · dead links removed automatically
Fast AI search results
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Friendly AI search
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Traditional AI tools hand you one model's answer
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Research papers pile up fast
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Parallel Web Systems builds web infrastructure for AI agents.
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Open Notebook is an open-source AI note-taking and research platform built around privacy.
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