Weblio review
A capable English-Japanese reference with examples, pronunciation, and vocabulary tools.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Weblio is an online dictionary service for people who need English-Japanese, Japanese-English, or English-only lookup. It combines dictionary entries with phonetic symbols, playable word and example pronunciation, example-sentence search, synonyms, collocations, and vocabulary-book features. The service is a strong fit for Japanese learners, English learners, translators, and anyone building a focused English-Japanese reference workflow. It is available through the web and official iOS and Android applications.
The Free plan covers the core lookup experience, including English dictionary and translation lookup, example-sentence search, pronunciation playback, and vocabulary-book features. A separate Premium service is also available. For many users, the free tier should cover regular word lookup and study needs because it includes the main reference and vocabulary tools. The product’s standout strength is the combination of contextual examples, pronunciation, phonetic symbols, synonyms, and collocations around dictionary lookup rather than translation alone. That makes it useful when a direct equivalent is not enough and the learner needs help understanding usage.
Weblio’s platform coverage is broad enough for switching between desktop and mobile study, with vocabulary-book and folder features supporting ongoing review. Its focus is narrower than a multilingual dictionary: the core service centers on English and Japanese, while separate applications cover other language resources. Users who want a dedicated English-Japanese reference with usage support should consider Weblio. Those seeking offline access or wider language coverage should choose a dictionary service designed around those priorities instead.
Weblio pros and cons
- Where it wins
- English-Japanese and Japanese-English lookup with English-only entries
- Example sentences, pronunciation playback, synonyms, and collocations
- Vocabulary books and folders are available on web and mobile
- Where it doesn't
- Language coverage centers on English and Japanese
- No offline access is available
- The paid option is listed only as a Premium service
Weblio fact sheet, pricing and score →
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