Datamuse is a collection of free websites, mobile apps, and APIs designed to help people create and communicate more effectively.

OneLook® is the Web's premier search engine for English words, indexing 10 million unique words and phrases in more than 1000 dictionaries and glossaries. More than a million unique users visit OneLook every month.

RhymeZone is the premier tool for creative writers of all kinds, combining the features of a rhyming dictionary and a thesaurus. It answers more than 30 million queries from several million unique users every month.

The Datamuse API is a lexical search service for developers.


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