that provided a graphical user interface for building data mashups that aggregate web feeds, web pages, and other services; creating Web-based apps from various sources; and publishing those apps.

The application worked by enabling users to "pipe" information from different sources and then set up rules for how that content should be modified (for example, filtering).

It was built by Pasha Sadri, Ed Ho, Jonathan Trevor, Ido Green, and Daniel Raffel of Yahoo!

It is described by its creators as: …a hosted service that lets you remix feeds and create new data mashups in a visual programming environment.

The name of the service pays tribute to Unix pipes, which make it easy to chain simple utilities together on the command line.On 4 June 2015, it was announced that Pipes would be in read-only mode from 30 August 2015, and shut down on 30 September 2015.

Pipes was to create new pages by aggregating RSS feeds from different sources.

These modules were grouped into categories: sources, user inputs, operators, URL, string, date, location, and number.

Creation and editing of the pipes was completely online; the user didn't have to download a plug-in, program or app.

The pipe editor was composed of three panes: the canvas, the library, and the debugger.

By using the modules in this category, user could add date, location, number, text, or URL input to the pipe.

It contained filter, count, location extractor, loop, regex, rename, reverse, sort, split, sub-element, tail, truncate, union, unique, and web service modules.

Just as Unix pipes are often used to quickly combine several different data sources but are generally not sufficient to create a useful application, Yahoo!