Learning Nexus
Interactive career roadmaps, 3D science simulations, free courses from top universities, and open educational resources. All free, no login required, accessible to everyone.
Interactive Career Pathways
Visual roadmaps show exactly what to learn, when to learn it, and how to advance your career. Based on roadmap.sh, these paths break down complex fields into manageable steps with curated resources.
Computer Science & Engineering
Step-by-step guides for software development, data science, AI, cybersecurity, and more. Each node reveals required skills, timeframes, and recommended courses.
Mathematics & Physics Pathways
From foundational algebra to advanced calculus, linear algebra, and physics. Free resources from top universities guide your learning journey.
Biology & Chemistry Learning Paths
Structured courses in molecular biology, genetics, organic chemistry, and biochemistry from leading educational platforms.
Interactive Science Labs
Hands-on virtual experiments in physics, chemistry, biology, and earth science. No equipment needed. Explore molecular structures, planetary motion, circuit building, and more.
PhET Interactive Simulations
Over 160 free science and math simulations from the University of Colorado Boulder. Research-based, covering topics from elementary school to university level.
Featured Simulations by Topic
Popular simulations for key STEM concepts. Circuit building, molecular interactions, planetary orbits, atomic structure, and chemical reactions.
Solar System Explorer
Navigate through our solar system with NASA Eyes. Real-time data on planet positions, asteroid trajectories, and spacecraft missions.
Free University Courses
Access thousands of free courses from MIT, Stanford, Harvard, and more. Learn from world-class professors without paying tuition fees. Earn certificates and build your skills.
MIT OpenCourseWare
Free lecture notes, exams, and videos from 2,500+ MIT courses. Mathematics, physics, engineering, computer science, and more. All materials available for self-paced learning.
Khan Academy
Free personalized learning platform covering math, science, computer programming, history, art, and economics. Practice exercises, instructional videos, and progress tracking.
Coursera & edX
Thousands of free courses from top universities worldwide. Audit courses at no cost, or pay only if you need a verified certificate.
Specialized STEM Platforms
Platform-specific courses for coding, data science, and technical skills. FreeCodeCamp, The Odin Project, and more offer complete curriculum paths.
Open Educational Resources
Free textbooks, lecture videos, coding environments, and problem solvers. No subscriptions, no paywalls. Learn at your own pace with quality materials.
Free Textbooks & Study Materials
Open-source textbooks covering mathematics, physics, chemistry, biology, and computer science. Download PDFs or read online at no cost.
Video Lecture Collections
Watch complete lecture series from top professors. MIT, Stanford, Yale, and other universities publish full courses on YouTube and dedicated platforms.
Interactive Coding Environments
Write and run code directly in your browser. No installation required. Practice coding with real-time feedback and collaboration tools.
Math & Science Problem Solvers
Step-by-step solutions for math problems, equation solvers, graphing calculators, and chemistry tools. Free alternatives to paid homework help sites.
Start Learning Today
All resources listed are completely free. No hidden fees, no credit card required. Click any link to begin your learning journey. Education should be accessible to everyone, everywhere.