✓
Tool
Category
Pricing
Free?
Updated
BASE Search
AI Research
Free
✓
Mar 2026
→
Academic search engine indexing 300M+ open access documents from 10,000+ providers.
Best for: research
Google Scholar ✓
AI Research
Free
✓
Mar 2026
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Free Google search engine for scholarly articles, theses, books, and patents worldwide.
Best for: research
Semantic Scholar ✓
AI Research
Free
✓
Mar 2026
→
Free AI academic search with 200M+ papers, TLDR summaries, and citation graphs.
Best for: research
PubMed AI ✓
AI Research
Free
✓
Mar 2026
→
AI-enhanced biomedical literature search built on the PubMed database by NCBI.
Best for: biomedical