ThoughtCo is the best online education resource for learning and is used by students, educators, and lifelong learners.

Duolingo is the best language learning app for free language courses and is used by millions of learners worldwide.

Wikibooks is the best platform for free textbooks and is used by students and educators worldwide.

Youdao is an online education platform for language learning and test prep.

British Council is an education organization that specializes in language learning, cultural exchange, and fostering international relations.

Macmillan is a leading global publisher across adult fiction, nonfiction, children's books, and provides educational content and learning solutions for higher education and schools.

Collins Dictionary is an online dictionary and reference resource providing definitions, thesaurus, translations, and language learning tools.

Reverso is the best translation tool for language learning and is used by students and professionals worldwide.

Preply is the best online tutoring platform for language learning and is used by students worldwide.

Larousse is an online encyclopedia and dictionary for French language learners and enthusiasts.

Babbel is an online language learning platform that offers interactive lessons and courses for language education.

PONS is a trusted online dictionary and translation service offering definitions, vocabulary training, and text translation across over 40 languages, primarily focused on German.

Oxford Learner's Dictionaries is an online dictionary for learners of English, providing definitions, translations, and grammar explanations.

dict.cc is a multilingual online dictionary focusing on community-driven German-English translations, vocabulary training, and language forums.

Memrise is a language learning service using native speaker videos and AI coaching to help users speak real-life language confidently and fast.

italki HK Limited is an online language learning platform that connects students with language teachers and offers language exchange opportunities.

bab.la is a language learning and translation platform

Forvo is a language learning online platform that focuses on improving spoken communication across cultures through a vast collection of pronunciations shared by native speakers.

SpanishDictionary.com is a language learning platform that offers dictionaries, flashcards, videos, quizzes, games, and a supportive community for people looking to improve their Spanish or English.

FluentU is a language learning platform using authentic videos (Netflix/YouTube) and an interactive engine for immersive vocabulary and comprehension practice.

Busuu is an award-winning online language learning platform offering interactive courses and community practice for 120 million global learners.

WordHippo is a thesaurus and word tool for creative needs and is used by writers and language learners.

Glosbe is a community-built, free online dictionary offering in-context translations, example sentences, pronunciation, and grammar for all world languages.

EF SET is an online English proficiency test for individuals and organizations.