ChatPDF
Upload a PDF and ask questions about it in chat; answers point to the pages they came from.
- Free plan or free tier
- Shows sources for its answers
Reading app for articles, PDFs and newsletters, with highlights that sync to notes apps and an AI that answers questions about a document.
Not enough info yet on open source, works in Word or Google Docs, developer API, shows sources for its answers. Check the tool's own site.
Listing written by ResearchBest, checked 2026-11-03. Report a correction or request removal. Back to reading and annotating pdfs.