Kate (text editor)

Characteristics and features

• Multi-document interface with tabbed editing and optional split views for side-by-side files.
• Syntax highlighting for many programming and markup languages and configurable indentation rules.
• Search and replace with regular expressions, code folding, bracket matching and basic auto-completion.
• Extensible through plugins that add functionality such as session management, project handling and an embedded terminal.

Kate is built on a reusable editing framework known as the KTextEditor component (historically linked to the KatePart name), which other KDE applications can embed. This architecture separates the core editing functionality from the user interface and enables the same powerful editor features to appear inside IDEs and document viewers. For an explanation of the editor's name and acronym, see the KDE documentation: KDE Advanced Text Editor.

History and development

Kate was introduced to users as part of the KDE 2.2 release and has been maintained within the KDE Applications collection since then. The editor first appeared in the KDE 2.2 release on August 15 and is recorded in KDE release notes from 2002. Over time it has evolved with additional plugins, language support files and integration options while remaining under active community development.

Common uses of Kate include editing source code, configuration files and quick text tasks where a lightweight but capable editor is preferred. It is distinct from simpler editors in the KDE family — for example, KWrite is a more minimal front end that relies on the same underlying editing component but exposes fewer advanced features. Kate runs primarily on Unix-like systems but is also available on other platforms where KDE libraries are supported.