About Unpaywall
Free browser extension that finds legal open access versions of paywalled papers.
Best Alternatives to Unpaywall
3 AI Research tools · Updated 2026
Looking for alternatives to Unpaywall? We've compiled 3 of the best AI Research tools that offer similar capabilities. Whether you need different pricing, specific features, or just want to explore your options, this list has you covered.
Quick Comparison
All Alternatives to Unpaywall
Academic search engine indexing 300M+ open access documents from 10,000+ providers.
- 300M+ document index
- Open access focus
- Faceted search
World's largest open access paper aggregator with 250M+ records and text mining API.
- 250M+ metadata records
- Full-text access
- Open access aggregation
Clarivate browser extension for one-click PDF access to research papers via library links.
- One-click PDF access
- Library integration
- Browser extension