Free Engineering Learning Resources

Free Engineering Books

• Directory of Open Access Books (DOAB)- Peer-reviewed academic books.
• Open Textbook Library-Free engineering and STEM textbooks.
• OAPEN Library- Open-access engineering and scientific books.
• Project Gutenberg-Free classic engineering and science books.
• National Academies Press- Engineering books available as free PDFs.

Free Journals & Research Articles

• Directory of Open Access Journals (DOAJ)
• IEEE Open Access
• SpringerOpen Journals
• Elsevier Open Access Journals
• Wiley Open Access
• Cambridge Open Access

Research Paper Repositories

• arXiv- Computer Science, AI, Electrical Engineering, Mathematics, Physics.
• EngrXiv- Engineering preprints.
• CORE- Millions of open-access research papers.
• OpenDOAR- Directory of institutional repositories.
• OpenAlex- Open scholarly index.

Indian Engineering Resources

• National Digital Library of India (NDLI)
• NPTEL- IIT online courses and lecture notes.
• SWAYAM- Free online courses from Indian universities.
• Shodhganga- Indian theses and dissertations.
• Virtual Labs- Online engineering laboratory simulations.

Thesis & Dissertation Repositories

• NDLTD (Networked Digital Library of Theses and Dissertations)
• MIT DSpace
• IIT Gandhinagar Repository

Scholarly Search Engines

• Google Scholar
• Semantic Scholar
• BASE Search