This is the Ultrapedia Search Portal. For the full Ultrapedia Web Site click here.

Ultrapedia is a search engine for recognized (OCR’d) books; primarily focusing on factual reference material including Encyclopedias and non-fiction text books. We have so far recognized about 50,000 books, mostly from Google Book Search. These books are either in the public domain, or out of copyright. The library search box is to the left, give it a try.

We’re committed to making the Ultrapedia Library the best portal for searching and browsing public domain and out of copyright books.

We think you’ll enjoy our site, so please take a moment and discover a new and exciting way to search and browse old books.