Kate is an advanced text editor that uses a multiple document interface. The editing window can be split into multiple panes. Within each pane, multiple documents can be opened in tabs. Kate includes bidirectional text support, a bookmark system, and on-the-fly spell checking. For programmers, Kate provides syntax highlighting, code folding, bracket matching, and code autocompletion for a number of programming languages. Users can save sets of documents as editing "sessions" that can be opened again as a group. Kate's plugin system allows for panels to be added to interact with a shell prompt, SQL database servers, and debuggers. Other plugins provide additional features such as XML validation and code snippet libraries. Kate is free software distributed under the GNU Lesser General Public License, with source code available under the Build It section of the website. Under the Get Kate tab, readers can find installers for windows and macOS systems. Users of Linux and BSD systems will find Kate in their system's package manager.