TeX editors that use Qt

LyX (styled as ''''''; pronounced ) is an open source, graphical user interface document processor based on the LaTeX typesetting system. Unlike most word processors, which follow the WYSIWYG ("what you see is what you get") paradigm, LyX has a WYSIWYM ("what you see is what you mean") approach, where what shows up on the screen roughly depicts the semantic structure of the page and is only an approximation of the document produced by TeX.

Kile is a TeX/LaTeX editor to edit TeX/LaTeX source code. It runs on Unix-like systems including Mac OS X and Linux, as well as Microsoft Windows via the KDE on Windows initiative, with the Qt and KDE libraries installed.

Texmaker is a free and open-source LaTeX editor with an integrated PDF viewer compatible with Linux, macOS, and Windows. Written entirely as a Qt app, it features many tools needed to develop documents with LaTeX.

TeXworks is free and open-source application software, available for Windows, Linux and macOS. It is a Qt-based graphical user interface to the TeX typesetting system and its LaTeX, ConTeXt, and XeTeX extensions. TeXworks is targeted at direct generation of PDF output. It has a built-in PDF viewer using the poppler library; the viewer has auto-refresh capability, and also features SyncTeX support (which allows the user to synchronize the PDF viewer position with the source, and vice versa with a single click).

TeXstudio is a cross-platform open-source LaTeX editor. Its features include an interactive spelling checker, code folding, and syntax highlighting. It does not provide LaTeX itself—the user must choose a TeX distribution and install it first.