gedit

Notable Features

• Files are opened in tabs
• Full support for internationalized text (Unicode/UTF-8)
• Syntax highlighting for lots of languages (Python, Shell, C, C++, HTML, CSS, JavaScript, XML, Markdown and many others)
• Configurable fonts and colors
• Print and print preview support
• Search and replace with support of regular expressions
• A side panel with an integrated file browser
• Spell-checking
• Word auto-completion
• Undo/Redo
• Auto indentation
• Text wrapping
• Line numbers
• Right margin
• Highlight current line
• Highlight matching brackets
• Editing files from remote locations
• Backup files
• A flexible plugin system which can be used to dynamically add new advanced features

Plugins

• Bookmarks – Easy document navigation with bookmarks.
• Code Comment – Comment out or uncomment a selected block of code.
• Document Statistics – Report the number of words, lines and characters in a document.
• Draw Spaces – Draw spaces and tabs.
• File Browser Panel – Easy file access from the side panel.
• Insert Date/Time – Inserts current date and time at the cursor position.
• Modelines – Emacs, Kate and Vim-style modelines support for gedit.
• Quick Highlight – Highlights every occurrences of selected text.
• Smart Spaces – Forget you’re not using tabulations.
• Sort – Sorts a document or selected text.
• Spell Checker – Checks the spelling of the current document.
• Text Size – Easily increase and decrease the text size.
• Word Completion – Auto-completion using words already present in open documents.