gedit

Geany is a powerful, stable and lightweight programmer's text editor that provides tons of useful features without bogging down your workflow. It runs on Linux, Windows and MacOS is translated into over 40 languages, and has built-in support for more than 50 programming languages. One the primary reasons for Geany's existence is that there is a need for a decent, GUI, lightweight, cross-platform, flexible and powerful IDE/editor. Many editors meet one or more of these requirements but fall short on others. Using the GPL v2 license, Geany assures that not only can you customize and hack it, but that everyone benefits from changes the community makes. Many parts of Geany are heavily customizable like color themes (Geany Themes) or adding new filetypes. Furthermore, Geany provides many settings to let you adjust it to your needs and preferences. Many supported filetypes including popular programming languages like C, Java, PHP, HTML, JavaScript, etc.

Vim is a highly configurable text editor built for creating and changing any kind of text efficiently. It is included as "vi" with most UNIX systems and with Apple OS X. Vim is rock stable and is continuously being developed to become even better. Vim is persistent, multi-level, with an extensive plugin system, support for hundreds of programming languages and file formats, powerful search and replace feature, and it integrates with many tools. Vim online is a central place for the Vim community to store useful Vim tips and tools. Vim has a scripting language that allows for plugin like extensions to enable IDE behavior, syntax highlighting, colorization as well as other advanced features. These scripts can be uploaded and maintained using Vim online. Vim stands for Vi IMproved. It used to be Vi IMitation, but there are so many improvements that a name change was appropriate. Vim is a text editor which includes almost all the commands from the Unix program "Vi".