Chat with your PDFs.
Get real answers, not guesses.
Upload a textbook, lecture slide, or research paper. Ask anything. NexSpace reads the whole document and answers with the exact page or section it came from.
Free to start · No credit card required · Works with any document
Why chatting with a PDF beats reading it cold
Stop skimming. Start asking.
Most study material is too long to read twice. NexSpace indexes every PDF you upload (chunked, embedded, and searchable) so you can ask "explain the third law in simple terms" or "what does this paper say about sample size" and get an answer sourced directly from your document, not a generic web result.
Every answer is cited
Unlike a plain chatbot, NexSpace shows you exactly where each answer came from, down to the source document and section. You can verify it, dig deeper, or ask a follow-up question without losing your place.
Works across multiple PDFs at once
Upload three textbooks or ten research papers into one workspace. Ask a question and NexSpace searches across all of them, cross-referencing where topics overlap. This is the multi-document RAG capability that a single-file PDF chatbot can't do.
Seven ways to ask
Switch between ELI5, step-by-step, analogies, or quiz-me mode. The same PDF, explained the way that actually makes it click for you.
Upload your first PDF. Free, no credit card required.
Free to start · No credit card required