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 sources. More than a million unique users visit OneLook every month.

RhymeZone is the premier reference tool for writers of all kinds. It answers more than 30 million queries from several million unique users every month.

The Datamuse API is a lexical search tool for developers.


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