Best Free Education & Research Tools

Semantic Scholar is a free AI-powered academic search engine developed by the Allen Institute for AI (AI2) that indexes over 200 million scientific papers across all disciplines, using natural language processing to understand the semantic content of papers rather than just keyword matching. Its AI extracts and structures key information from papers including methods, results, figures, and citations, enabling semantic search, TLDR summaries, influential citation detection, and research trend analysis. The Semantic Reader feature provides an AI-enhanced PDF reading experience with instant definitions, citation context on hover, and related paper recommendations. Semantic Scholar's datasets and APIs are freely available for research, making it the foundational dataset behind many academic AI tools including Elicit, Consensus, and Research Rabbit.

Research Rabbit is a free AI-powered research discovery tool that helps academics and researchers find related scientific papers by visualizing the citation network around their initial reading list. Users add papers they find relevant, and Research Rabbit uses AI to surface similar works, key earlier papers that laid the groundwork, and newer papers that have cited or built upon those foundational works—creating a visual map of the research landscape around a topic. It integrates directly with Zotero for seamless library management and sends email digests of newly published papers matching a researcher's interests. Research Rabbit is completely free and designed to replace tedious manual citation chaining, making it particularly popular among PhD students and early-career researchers mapping a new field.

NotebookLM by Google lets you upload documents, PDFs, websites, and YouTube videos, then ask questions and get AI-generated answers grounded exclusively in your sources. It creates audio summaries and helps synthesize information across documents.

Research Rabbit is a free AI-powered literature discovery platform that helps researchers explore academic papers through visual knowledge maps, recommendation networks, and author collaboration graphs.

Research Rabbit is a free AI-powered tool for academic literature discovery. Build collections of papers and it automatically suggests related works, visualizes author networks, and sends weekly alerts about new relevant publications.

Semantic Scholar is a free AI-powered research tool by the Allen Institute for AI. It indexes 200M+ academic papers, surfaces key citations, finds related work, and uses AI to summarize papers and identify influential research.

Socratic by Google is a free AI-powered homework help app for high school and college students that uses Google AI to explain concepts, answer questions, and provide step-by-step solutions across subjects including math, science, literature, and history. Students can photograph a question or type it, and Socratic provides visual explanations, relevant educational videos, and worked examples sourced from trusted educational content. Unlike homework cheating tools, Socratic focuses on understanding by showing conceptual explanations alongside answers. The app has over 7 million downloads and is particularly popular for STEM subjects where visual explanations are valuable. It is completely free with no paywalled features.

Socratic by Google uses AI to help students understand school subjects by photographing questions. The app identifies the subject and problem type, then provides explanations, videos, and step-by-step breakdowns from trusted educational resources.

Socratic is Google's free AI learning app that helps students understand any subject by taking a photo of a question. AI explains concepts step-by-step across math, science, history, and literature.