TeXpen 0.7.1 recently released, is open source and based on Qt/C++ . It utilizes codes from another open source tool Textpad. TeXpen is a universal text editor, with features specially for LaTeX users. You can use TeXpen to prepare your academic papers, books, and slides (with Beamer), as well as any other text files. TeXpen latex editor comes with a number of features which includes: Keywords highlighting Document outline(Navigation within a long document) Equation preview (real-time) Themes / Background color (Protecting your eyes) Auto-Completion Build/Stop/Configure Insert Figure/Table codes on One-Click Themes/Background colors to protect eyes English Grammar/Expression Improvement Article outline to navigate quickly Document Templetes for beginners One key inserting Figure/Table One key build pdf and built-in Preview Auto-completion to reduce typing Spell-check Install TeXpen 0.