50 'Hidden Toolbox' Websites for Free Papers, Books, AI Research Assistants and Design Tools
Aiden_Tech_Ai · x · 2026-09-22
A listicle of 50 useful websites framed as the internet's hidden toolbox, heavy on free academic resources: paywall-free paper access, online book borrowing, free journals and textbooks (70K+ free books), free courses, AI research assistants, paper-explainer tools, and academic search/discovery engines.
The latter half covers design utilities: a free Photoshop alternative, image compression/optimization, background removal, and object removal. Only the first 16 entries are shown in text; the full list is in the attached image.
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