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TeXstudio portable is an integrated environment for writing LaTeX documents. Our goal is to make writing LaTeX as easy and comfortable as possible. Therefore TeXstudio has numerous features like syntax-highlighting, integrated viewer, reference checking and various assistants.

IWE - Integrated Writing Environment

All LaTeX tools can be called from TeXstudio with just one key press and you can add your own command line options (e.g. for forward/inverse search)
LaTeX tags and 1102 mathematical symbols you can easily select and add to your text
Wizards generating necessary code (e.g. documents, tabular/array-environments and BibTex-types)
LaTeX errors are displayed in a Log panel and highlighted within the tex file
Bib(La-)TeX will be automatically called if the bib files are modified
LaTeX documentation where you can lookup the tags you don't know
Customizable menus, toolbars and environments
Scripting to control TeXstudio with user-written scripts
DDE-Support to interact with other programs on Windows
And also customizable code snippets, tabbed MDI view, ...

Powerful Text Editor based on QCodeEdit

Interactive spell checker which marks spelling mistakes while you type them
Interactive grammar checker which marks grammar mistakes using LanguageTool
Interactive reference checker which marks wrong reference/label combinations and wrong citations
Interactive syntax checker which marks wrong spelled LaTeX commands
Syntax highlighting drawing LaTeX commands in different, customizable formats
Code folding which allows you to hide certain blocks
Auto completion completes tags you wrote and shows corresponding help entries, uses the taglists from kile
Unicode support which can handle files in all encodings
Incremental search and replace on a search panel at the bottom of the text panel
Text Navigation jumps to bookmarks, certain lines, last changes and LaTeX errors/warnings
Key Remapping of single keys for automatically text insertion (e.g of nice quotation marks)
And also line numbers, repetition checker, dynamic word wrapping, parenthesis highlighting, parenthesis completion, unicode table, undo/redo, line change state, table editor...

Utilities

Structure View which shows the logical hierarchy of a file and is interactively updated
PDF Preview which shows the compiled pdf file and supports synctex
Math Preview which shows the latex output of a single expression within the text
Find in files dialog let you search in currently opened files
Thesaurus which shows possible synonyms for a certain word
HTML Converter which creates a html out of your LaTeX-based PS-file
Text analysis counting and showing often used words or phrases
Random Text generator which automatically creates a text similar to the one you wrote
SVN support to synchronize local changes with the repository