VerlumoAIAI search assistant that answers questions with cited sources.
View detailsBASE Search
Search engine for academic open-access resources from Bielefeld University.
BASE Search is a search engine for academic open-access resources from Bielefeld University. It indexes over 400 million documents from more than 11,000 sources — repositories, journals, and university libraries worldwide — so you can search the world's open research in one place.
Key Features
- Free search across 400M+ academic documents
- 11,000+ sources from repositories and libraries
- Open-access resources only
- Filters by document type, language, and date
- Free API for developers and institutions
- No account needed
Pricing
| Plan | Price | Details |
|---|---|---|
| Free | $0 | Full search across academic open-access resources — no payment required. |
Prices as listed in 2026 research. Always check the official site for the latest price — plans change. Free plan: Yes — it has a free plan.
Best for: anyone who searches academic open-access resources from universities worldwide.
Popular with: Students, Teachers, Writers
Popular with: Students, Teachers, Writers
How it works
The platform is free for everyone, with no account needed. It is run by Bielefeld University Library in Germany, and it has been one of the largest academic search engines for over a decade. It also offers an API for developers and institutions.
BASE is a reliable, free tool for finding open-access research. It will not help with paywalled papers, and its interface is older than newer tools, but for a comprehensive, free search of academic resources it remains a solid choice.
Pros and Cons
✓ Pros
- Completely free with no account needed
- Huge index of 400M+ documents
- 11,000+ sources worldwide
- Run by a university library, not a company
✗ Cons
- Open-access only — paywalled papers are not included
- Interface looks dated
- No AI features or citation tools
Frequently Asked Questions
Is BASE Search free?
Yes — BASE Search has a free plan. Free
What is BASE Search best for?
anyone who searches academic open-access resources from universities worldwide.
What kind of tool is BASE Search?
BASE Search is a Research Tools tool on VerlumoAI.
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View detailsLast reviewed: November 2026