Technologies are described herein for providing validated text-to-speech correction hints from aggregated pronunciation corrections received from text-to-speech applications. A number of pronunciation corrections are received by a Web service. The pronunciation corrections may be provided by users of text-to-speech applications executing on a variety of user computer systems. Each of the plurality of pronunciation corrections includes a specification of a word or phrase and a suggested pronunciation provided by the user. The pronunciation corrections are analyzed to generate validated correction hints, and the validated correction hints are provided back to the text-to-speech applications to be used to correct pronunciation of words and phrases in the text-to-speech applications.