TextMate

Kate is packed with features that will make it easier for you to view and edit all your text files. Kate lets you to edit and view many files at the same time, both in tabs and split views, and comes with a wide variety of plugins, including an embedded terminal that lets you launch console commands directly from Kate, powerful search and replace plugins, and a preview plugin that can show you what your MD, HTML and even SVG will look like. Kate supports highlighting for over 300 languages making it easier to read code in almost all programming languages. Kate also understands how brackets works and will help you navigate inside complex code blocks hierarchies. On-the-fly spellchecking is also included and will help you check your text before publishing. Work on multiple files at the same time with split views. Use the project sidebar to navigate your project directory structures and use Kate's smart tabs to quickly access your recently opened documents.

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".