LyX is an open source document processor based on top of the LaTeX typesetting system. Developed by Matthias Ettrich
License: Open Source
Texmaker is a cross-platform open source LaTeX editor with an integrated PDF viewer. Texmaker is entirely a Qt app. Texmaker is a free, modern and cross-platform LaTeX editor for Linux, macOS and Windows systems that integrates many tools needed to develop documents with LaTeX, in just one application. Developed by Pascal Brachet
License: Open Source
LyX is designed for users who prefer a WYSIWYG approach to document creation, making it ideal for those less familiar with LaTeX. In contrast, Texmaker offers a more traditional LaTeX editing experience, which is powerful but may be challenging for newcomers.