Hyperwords or liquid information refers to text that can be sent to programs or services (such as emails, dictionaries, online translators) through a simple set of commands.

It is a selection-based interface which can be used for references, searches, blogging, emailing, copying, conversions and language translation.

The original development of Liquid (OS X) was by Daoxin Z. in China, followed by Konstantin R. (TIANI Studio) in Poland and Zuzex in Russia.

The company's advisory board included Douglas Engelbart, Ted Nelson, Vint Cerf, Dave Farber, Bruce Horn and Douglas Rushkoff.

The Liquid Browser add-ons for Firefox, Chrome, and Safari were developed by Mikhail S. and Alex V. in Russia, and Tobias H. in Germany, until it was discontinued.