Getting a quick, evidence-based read on what the research says about a claim
Best free AI tools for students
Every tool on this page has a genuinely free plan — not a trial that expires. We say what the free tier actually includes, and where it runs out.
Cost
Category
Pricing
Automating literature reviews by extracting answers from many papers at once
A writing assistant that checks grammar, clarity and tone as you type.
A Google research assistant that answers questions using only the sources you upload.
An AI search engine that answers questions and cites the sources it used.
Deep style and grammar editing with detailed reports beyond basic spellcheck
A paraphrasing and summarising tool aimed at writers and students.
Reading dense academic PDFs with an AI chat assistant alongside the text
Checking whether other papers actually support or contradict a source before citing it
Finding and understanding academic papers quickly
Collecting sources and generating citations/bibliographies automatically in any style