Zeno.org
zeno.orgA German-language full-text library and historical reference
A German-language full-text library and historical reference
AI research assistant that grounds answers in full-text scholarly papers and shows how findings are supported or challenged.
AI workspace for research writing with citations traceable to source PDFs
AI academic writing tool that generates cited essays and research papers.
AI agents for everyday search, academic work, and professional drafts.
AI patent agents for prior art, novelty, claim strategy, and patent drafting
Fossil collections, taxa and literature in a searchable reference
Economics literature discovery through RePEc
Search the Medical Subject Headings vocabulary
African children's storybooks created through a volunteer publishing project.
Historic natural-history illustrations with book metadata and page downloads
Translations and research tools for Tibetan Buddhist texts
Restored classic ebooks without DRM
Fish nomenclature and classification with literature search
Free ebook membership with limited monthly downloads
Audio stories for children, including original fiction, fairy tales, myths and educational stories.
A children's digital book collection that can be explored by language, genre and other story features.
Volunteer-narrated audiobooks distributed without charge
Older literary works available as free ebooks
Carefully edited digital editions of public-domain works
Literary reference organized around people, works and context