kile

Kile is a cross-language text editor and integrated development environment for the KDE desktop environment. It is part of the KDE Applications suite and is built on the KTextEditor framework, which provides common editing facilities to KDE editors. Kile is designed for programming and LaTeX authoring, offering project-oriented workflows and a customizable interface.

Key features include syntax highlighting for many languages, code folding, and auto-completion; templates and code snippets; project management and session restoration; an integrated terminal, configurable keyboard shortcuts, and customizable toolbars and panels. Kile also supports LaTeX editing with dedicated commands, quick builds, and a viewer integration; it can be paired with external build tools to streamline compilation and viewing of output.

The editor is designed to integrate tightly with KDE and its conventions, providing features such as drag-and-drop, clipboard integration, and accessibility options. Kile is free and open-source software distributed as part of KDE Applications and runs on Unix-like systems and other platforms supported by KDE.