✓
Tool
Category
Pricing
Free?
Updated
Google Scholar ✓
AI Research
Free
✓
Mar 2026
→
Free Google search engine for scholarly articles, theses, books, and patents worldwide.
Best for: research
Zotero ✓
AI Research
Free
✓
Mar 2026
→
Free open-source reference manager with browser extension, annotations, and Word integration.
Best for: reference-manager