About Unpaywall
Free browser extension that finds legal open access versions of paywalled papers.
Best Alternatives to Unpaywall
3 AI Research tools · Updated Mar 2026
Looking for alternatives to Unpaywall? We've compiled 3 tools that offer similar capabilities — each rated by relevance, pricing, and how well they fit common use cases.
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All Alternatives to Unpaywall
Academic search engine indexing 300M+ open access documents from 10,000+ providers.
Why consider this: Directly competes in the research space with a different approach to the same core problems.
- 300M+ document index
- Open access focus
- Faceted search
World's largest open access paper aggregator with 250M+ records and text mining API.
Why consider this: Directly competes in the research space with a different approach to the same core problems.
- 250M+ metadata records
- Full-text access
- Open access aggregation
Clarivate browser extension for one-click PDF access to research papers via library links.
Why consider this: Directly competes in the research space with a different approach to the same core problems.
- One-click PDF access
- Library integration
- Browser extension