Alternatives to Reference.com

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orchidspecies.com favicon

Discover thousands of orchid species with photos

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Explore a vast photo encyclopedia of orchid species, including growing tips, names, bloom times, and where orchids are found worldwide.

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Access in-depth philosophy articles online

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Explore philosophy topics and thinkers with the Routledge Encyclopedia of Philosophy—an online resource for articles, overviews, and scholarly insights.

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Explore expert Oxford reference works online

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Access trusted dictionaries and reference works from Oxford University Press online, covering subjects like law, literature, science, and more.

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Access millions of trusted encyclopedia articles

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Explore millions of articles, facts, and media in this free online encyclopedia—your go-to source for research, homework help, and reliable information.

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Discover writing systems and languages worldwide

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Explore writing systems, languages, and useful phrases from around the world. Omniglot is your guide to alphabets, scripts, and multilingual learning.

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Explore art terms and artist profiles easily

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Discover art terms, artist profiles, tutorials, and guides with Artlex—the original online art dictionary and encyclopedia since 1998.

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Explore the roots of English words instantly

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Discover the origins and histories of English words, phrases, and idioms with this easy-to-use online etymology dictionary and language resource.

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Learn the difference between anything quickly

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Pediaa.com helps you explore answers and differences on a wide range of topics, making learning easy with clear explanations and useful comparisons.

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Quickly look up math terms and formulas

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Browse math terms, formulas, and diagrams from algebra to calculus. Mathwords helps you easily understand key math concepts and definitions online.

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Discover the world with visual encyclopedias

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Explore visual encyclopedias, interactive games, and educational tools to learn about the world through images and engaging content. Available in multiple languages.

theodora.com favicon

Explore job titles and global reference tools

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Browse job titles, country info, and reference tools with ITA. Explore occupations, stats, and dictionaries all in one easy-to-navigate resource site.

company-histories.com favicon

Explore the origins of top companies

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Discover how famous companies were founded, explore inspiring business stories, and learn about the journeys behind well-known brands and entrepreneurs.

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Browse Greek myths, gods, and legends online

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Explore Greek myths, gods, and legends with detailed stories and resources written online. Discover the world of ancient Greece and its mythology.

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Dive into myths and legends from many cultures

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Explore the fascinating world of history and mythology with detailed stories and articles about ancient legends, gods, and cultures from around the globe.

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Find clear answers to your Shakespeare questions

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Explore Shakespeare's plays, biographies, essays, and glossaries with in-depth analysis and answers to common questions—all in one easy-to-use site.

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Find ingredient substitutions in seconds

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Discover ingredient substitutions, synonyms, and detailed info for thousands of foods. Find alternatives and learn more about cooking ingredients easily.

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Find Quran, Hadith, and prayer times worldwide

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Explore the Quran, Hadith, prayer times, Qiblah direction, Islamic calendar, and names—all in one place. Includes a free Islamic dictionary and resources.

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Discover annotated fairy tales worldwide

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Explore annotated fairy tales, folktales, and illustrations from around the world, with histories, cultural notes, and a searchable folklore database.

dictionary.com favicon

Find word meanings and synonyms instantly

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Look up English word meanings, synonyms, origins, and usage examples. Play word games and discover new words every day on this trusted online dictionary.

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Discover inspiring life stories and biographies

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Explore detailed biographies, videos, and stories about celebrities, historical icons, and influential people from all walks of life on Biography.com.

Top Reference.com Alternatives (Matching Language)

eol.org favicon

Discover facts about every living species

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Explore a vast online encyclopedia about all living species, with educational resources and multilingual support for learners, teachers, and nature lovers.

blackpast.org favicon

Explore Black history from around the world

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Discover Black history worldwide with BlackPast.org, an online encyclopedia offering articles, resources, and educator tools on African heritage.

animaldiversity.ummz.umich.edu favicon

Discover facts about animals worldwide

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Explore detailed information, images, and facts about animal species from around the world on this educational online encyclopedia for all ages.

en.wikibooks.org favicon

Access free textbooks and learning guides

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Wikibooks offers free, open-content textbooks and learning resources on a wide range of subjects, available for anyone to read, use, and share.

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Discover Greek language resources and guides

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Explore resources, tools, and guides on Greek language, literature, and history. The portal offers educational content in Greek for all levels.

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Discover trilobite facts and fossil guides

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Explore detailed guides on trilobite biology, classification, and history, with in-depth articles, images, and resources for enthusiasts and researchers.

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Discover Zimbabwe's native plants with photos and facts

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Explore detailed information and photos of Zimbabwe's plants, including species descriptions, habitats, and distribution across the region.

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Find clear definitions and synonyms instantly

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Look up word definitions, meanings, synonyms, grammar tips, and example sentences from trusted sources—all in one easy-to-use online dictionary site.

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Discover and research plants worldwide

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Explore detailed information on global plant species, access scientific data, and build custom plant checklists with Plants of the World Online by Kew Science.

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Discover U.S. history with articles, maps, and quizzes

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Explore key topics in American history with detailed articles, maps, timelines, quizzes, and resources designed to help students learn and study.

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Discover state facts, symbols, and history

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Explore facts, symbols, maps, and history for all 50 U.S. states, plus quizzes and printable resources to help you learn more about each state.

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Explore LGBTQ history through stories and exhibits

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Discover LGBTQ history with timelines, exhibits, and stories. OutHistory shares resources, oral histories, and guides to help you explore the past.

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Explore utilitarianism with peer-reviewed guides

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Utilitarianism.net offers a free, peer-reviewed academic guide to utilitarian philosophy with essays, study guides, and resources for deeper learning.

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Explore free courses and learning materials

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Wikiversity offers free educational resources, courses, and collaborative learning projects across a wide range of subjects for self-learners and educators.

wisdomlib.org favicon

Discover texts on world religions and history

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Explore a vast digital library of books, articles, and resources on Hinduism, Buddhism, Jainism, philosophy, and ancient history from around the world.

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Discover facts on 7,000+ world languages

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Explore details on over 7,000 living languages worldwide. Ethnologue offers easy access to language facts, maps, and statistics for research and learning.

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Find and learn about every bird species worldwide

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Explore global bird species with the IOC World Bird List—an up-to-date resource for bird names, classification, and taxonomy used by bird enthusiasts worldwide.

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Discover the stories behind everyday phrases

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Explore the meanings and origins of common phrases, sayings, and idioms in English with easy explanations and interesting background stories.

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Explore open source software architecture guides

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Discover in-depth explanations of open source software architecture with free, expert-written chapters and insights for developers and learners.

bibleserver.com favicon

Compare Bible translations side by side

74%

Read and compare Bible translations in over 20 languages, take notes, and explore commentaries and study tools for deeper Bible understanding.

More Reference.com Alternatives

academic.ru favicon

Find Russian definitions and encyclopedia entries

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Russian-language site offering dictionaries and encyclopedias to help you find definitions, explanations, and detailed information on various topics.

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Discover the stories behind English words

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Explore the history, origins, and quirks of English words with thousands of pages on word meanings, usage, and language evolution.

sapere.it favicon

Explore Italian encyclopedia and study tools

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Sapere.it is an Italian online encyclopedia with De Agostini content, free dictionaries, a translator, and study tools to help you learn and test yourself.

wissen.de favicon

Teste dein Wissen und entdecke geprüfte Infos

89%

Wissen.de ist ein deutschsprachiges Wissensportal mit Lexika, Wörterbüchern, Wissenstests und geprüften Infos rund um Allgemeinbildung und Alltag.

archive.flossmanuals.net favicon

Explore free guides for open source software

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FLOSS Manuals offers free guides and manuals on open source software, helping users and educators learn practical tech skills in multiple languages.

lexilogos.com favicon

Access dictionaries and maps for every language

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Find dictionaries, maps, books, and language tools for countries around the world. Explore resources to learn about languages and cultures. (French site)

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Discover detailed country profiles online

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Explore in-depth country profiles with detailed info on history, society, economy, and politics, sourced from the Library of Congress Country Studies series.

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Discover minerals with detailed data and photos

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Explore a comprehensive mineral database with detailed species descriptions, images, and classification info for students, collectors, and enthusiasts.

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Discover literature, history, and Nova Scotia topics

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Explore articles on literature, history, law, biographies, and Nova Scotia wildflowers. Learn about Acadian culture and more in one accessible place.

patterns.dataincubator.org favicon

Access a comprehensive guide to Linked Data patterns

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Explore a free online book about Linked Data patterns, offering downloadable resources and practical insights for understanding linked data concepts.

wordspy.com favicon

Explore newly coined and curious words

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Discover new and unusual words, their meanings, and origins. Word Spy helps you explore fresh language trends and quirky vocabulary in English.

jisho.org favicon

Search Japanese words, kanji, and phrases instantly

74%

Look up Japanese words, kanji, and phrases in English with Jisho.org’s easy-to-use online dictionary and powerful search options.

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Access the Deep Learning book online for free

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Read the full Deep Learning textbook online for free—an accessible resource for students and practitioners exploring machine learning and AI.

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Discover the roots of Chinese characters

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Explore the origins and history of Chinese characters with detailed etymology, ancient scripts, and research tools. Search over 100,000 characters.

mixtape.scunning.com favicon

Explore causal inference concepts online

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Read the full text of 'Causal Inference: The Mixtape' online and access chapters, teaching resources, and sessions about causal inference methods.

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Discover insights across music, science, and art

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Explore a vast, personal knowledge base covering music, science, history, art, philosophy, and more—curated by Piero Scaruffi for curious minds.

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Discover key moments and figures in history

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Explore detailed articles, timelines, and photos about major events and figures from history. Great for students, teachers, and history enthusiasts.

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Discover trustworthy guides and web resources

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Finding Dulcinea offers curated online guides and web resources to help you discover reliable information on history, facts, and current events.

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Learn rugby rules with videos and quizzes

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Explore official rugby laws, watch explanatory videos, access definitions, and take the World Rugby Laws exam. Learn the game with guides and resources.

historythings.com favicon

Discover engaging stories from world history

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Explore fascinating stories and facts from world history, including quizzes and articles on American, European, and global historical topics.