It suits readers seeking reference articles, multimedia, and learning resources on the web.
Free plan Free trial AndroidiPhone & iPadWebBrowser extension
- Home
- Learning & Education
- Online Encyclopedias
Best Online Encyclopedias 2026
Online encyclopedias provide reference material for exploring topics, checking facts, and supporting learning. Compare content formats and update frequency to understand how information is presented and maintained. Citation tools can help when you want to trace sources; educator resources and institutional access are relevant considerations for learning settings. Mobile apps offer another way to access reference content. Free-plan availability and paid-from pricing help clarify access and cost. The entries include Store norske leksikon, Wikipedia, and Treccani. Consider what kinds of material you need, whether you expect to use references in a classroom or library, and how you prefer to access them when weighing the listed features.
02
Wikipedia
Wikipedia suits readers looking for a free encyclopedia across many languages, including on mobile.
AndroidiPhone & iPadWeb+2 Record5.6 Visit
03
Encyclopaedia Universalis
It suits learners, researchers, educators, schools, libraries, and organizations needing reference content.
AndroidiPhone & iPadWeb Record5.2 Visit
04
Nationalencyklopedin
Web Record4.9 Visit
05
Brockhaus
Web Record4.8 Visit
6
Treccani
AndroidiPhone & iPadWeb Free plan Record4.8 Visit Treccani suits readers looking for Italian reference works, biographies, and articles across language, geopolitics, science, and society.
7
Store norske leksikon
iPhone & iPadWebAPI Free plan Record4.7 Visit SNL suits readers seeking a free, expert-edited reference work, including pupils, students and teachers.
8
Baidu Baike
Web Free plan Record4.5 Visit Baidu Baike suits readers looking up Chinese-language knowledge and people interested in contributing or correcting encyclopedia entries.
9
Enciclopèdia.cat
Web Free plan Record4.5 Visit It suits readers seeking reference material in Catalan across a broad range of subjects, as well as educators using its reference works and resources.
10
Encyclopedia.com
Web Free plan Record4.5 Visit It suits readers looking up general reference topics or seeking source entries from published encyclopedias.
11
Encyclopedia of Alabama
Web Free plan Record4.5 Visit It suits readers seeking reference material about Alabama and educators looking for related resources.
12
Encyclopedia of Arkansas
Web Free plan Record4.5 Visit The encyclopedia may suit readers learning or teaching Arkansas history, including historians, educators, and students.
13
Encyclopedia of Korean Culture
WebAPI Free plan Record4.5 Visit It suits readers researching Korean subjects and developers or institutions seeking structured access to encyclopedia records.
14
Encyclopedia Virginia
Web Free plan Record4.5 Visit It suits readers exploring Virginia history, including students and teachers seeking entries with primary sources and multimedia.
15
Klexikon
Web Free plan Record4.5 Visit Klexikon suits German-speaking children and families seeking child-oriented reference material.
16
Lex – Danmarks Nationalleksikon
Web Free plan Record4.5 Visit Lex may suit Danish-language readers seeking reference material, including students, educators, researchers, and library users.
17
Wikiquote
Web Free plan Record4.5 Visit Wikiquote suits readers seeking quotations by subject or source and people who want to contribute or reuse material under its licenses.
18
World Book Online
AndroidiPhone & iPadWeb $250 a year Record4.5 Visit World Book Online suits pre-K through high school learners, and is also described for use in classrooms and libraries.
20
The Canadian Encyclopedia
Web Free plan Record4.4 Visit It suits learners, educators, and readers exploring Canadian history and culture.
22
New World Encyclopedia
Web Free plan Record4.3 Visit It suits teachers, students, and general readers looking for reference articles across the listed subject areas.
24
Vikidia
Web Free plan Record4.3 Visit Vikidia suits children ages 8–13, families, educators, and contributors seeking an encyclopedia with age-appropriate presentation.
25
Encyclopédie Larousse
Web Free plan Record4.2 Visit Encyclopédie Larousse suits web visitors seeking free reference entries, definitions, articles, and synonyms.
More in Learning & Education
Language learning apps 278Online course platforms 148Coding Playgrounds 138Online Course Marketplaces 138Exam Prep Apps 125Math Learning Apps 122Learning Management Systems 111Meditation apps 102AI Study Tools 96Physics Simulation Software 89Early Childhood Education Software 86Math Solver Apps 68MOOC Platforms 67School Management Software 49Learning Gamification Software 47Reading Apps 47Student Response Systems 45Anatomy Learning Software 43