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Tally is a free AI-powered form builder that creates beautiful, conversational forms without limits. It offers unlimited forms and responses on the free plan and integrates with popular tools like Notion, Zapier, and Airtable.

Semantic Scholar is a free AI-powered research tool developed by the Allen Institute for AI that indexes over 200 million academic papers. It uses AI to extract key concepts, find related research, and provide paper summaries.

Research Rabbit is a free AI citation explorer and literature mapping tool that helps researchers discover related papers through visual networks. It integrates with Zotero and sends alerts when new papers match your interests.

Inciteful is a free AI citation network tool that builds a graph of papers connected to a seed paper through citations, then uses algorithms to rank the most important related works. It helps researchers quickly find key literature.

Google Scholar is a free academic search engine that indexes the full text of scholarly literature across formats and disciplines. It tracks citations, h-index, and enables researchers to set up alerts for new work in their field.

PubMed is a free database of biomedical and life sciences literature maintained by the National Library of Medicine, comprising over 35 million citations and abstracts. It is the primary search resource for medical and health research worldwide.

Lens.org is a free, open patent and scholarly search platform that provides access to over 120 million patents and 200 million scholarly records. It allows researchers and businesses to explore innovation landscapes and citation networks.

Socratic by Google is a free AI learning app that helps students understand homework questions by snapping a photo and receiving curated explanations, videos, and step-by-step guides. It covers math, science, history, English, and more using Google AI.

Quill.org is a free AI writing tool for students that provides personalized grammar, sentence structure, and writing skills practice through interactive exercises and immediate feedback. It is used by over 3 million students and 500,000 teachers to develop fundamental writing mechanics.

Google Classroom is a free learning management system from Google that helps teachers distribute assignments, grade work, and communicate with students, now enhanced with AI features from Google Gemini for generating rubrics, assignment feedback, and lesson ideas. It integrates seamlessly with Google Workspace for Education.