ChatPDF
Chat with any PDF document.
Upload a PDF and ask questions about it in plain English. ChatPDF extracts, summarises, and explains your documents instantly.
Summarize, chat with, and extract data from documents.
Chat with any PDF document.
Upload a PDF and ask questions about it in plain English. ChatPDF extracts, summarises, and explains your documents instantly.
All-in-one PDF toolkit with AI.
SmallPDF provides 21 PDF tools—compress, convert, merge, e-sign—plus an AI assistant for summarisation. Free: 2 tasks/hour.
AI document translation tool.
DocTranslate translates PDFs, Word files, and PowerPoints while preserving the original formatting. Free: 2 files/day.
Research paper AI assistant.
Humata reads academic papers and legal documents, then answers detailed questions with citations. Free: 60 pages/month.
AI PDF reader and summariser.
PDF.ai lets you upload multiple PDFs and ask cross-document questions. Free tier: 1 PDF at a time, unlimited questions.
PDF & Document AI tools powered by artificial intelligence are transforming the way individuals and teams work. Our directory lists only tools that offer a genuine free tier, free trial, or open-source licence — so you can start immediately with no credit card.
Every tool in this list has been manually reviewed to confirm the free tier is real and accessible. We update this list monthly to reflect pricing changes, new launches, and tool shutdowns.