A curated collection of free books, tools, tutorials, and guides to support your learning journey across multiple disciplines.
Open-access textbooks and educational materials for self-study.
Free, peer-reviewed textbooks for college and AP courses in math, science, social sciences, and humanities.
TextbooksOver 60,000 free eBooks including classic literature, reference works, and historical documents.
LiteratureFree lecture notes, exams, and videos from MIT. Covers engineering, science, humanities, and more.
UniversityFree courses in math, science, computing, economics, arts, and test prep (SAT, LSAT, MCAT).
All SubjectsOpen-access archive of scholarly articles in physics, math, computer science, and more.
ResearchFree platforms and tools for learning programming and web development.
Free, self-paced coding curriculum with certifications in web dev, data science, and machine learning.
CodingComprehensive documentation for HTML, CSS, JavaScript, and web APIs by Mozilla.
ReferenceFull-stack web development curriculum with real-world projects and community support.
Full StackWorld's largest code hosting platform. Explore open-source projects and collaborate with developers.
Open SourcePractice coding problems for technical interviews. Algorithms, data structures, and system design.
Interview PrepWeb development tutorials and references for HTML, CSS, JavaScript, Python, SQL, and more.
TutorialsTools to improve your writing, check grammar, and manage citations.
Our own suite of 13+ free text tools: word counter, JSON formatter, regex tester, diff checker, and more.
Text ToolsCitation generator, Pomodoro timer, flashcards, GPA calculator, and grade percentage calculator.
Study ToolsMake your writing bold and clear. Highlights complex sentences, passive voice, and readability issues.
WritingSearch for scholarly literature across many disciplines and sources: articles, theses, books.
ResearchOnline LaTeX editor for writing, editing, and publishing scientific documents and papers.
LaTeXApps and tools to boost your productivity and study efficiency.
All-in-one workspace for notes, wikis, databases, kanban boards, and project management.
ProductivityKnowledge management and note-taking app using linked Markdown files. Build your second brain.
NotesPowerful, free flashcard app using spaced repetition for efficient memorization and learning.
FlashcardsStay focused by planting virtual trees. Gamified Pomodoro timer that helps you stay off your phone.
FocusFree time tracking tool to understand how you spend your study and work hours.
Time TrackingResources for building your career and professional skills.
Professional development courses in business, technology, and creative skills.
ProfessionalOnline courses from top universities and companies. Many courses offer free audit access.
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