neovim

neovim is a free open-source hyperextensible Vim-based text editor

Features

• Modern GUIs
• API access from any language including C/C++, C#, Clojure, D, Elixir, Go, Haskell, Java/Kotlin, JavaScript/Node.js, Julia, Lisp, Lua, Perl, Python, Racket, Ruby, Rust
• Embedded, scriptable terminal emulator
• Asynchronous job control
• Shared data (shada) among multiple editor instances
• XDG base directories support
• Compatible with most Vim plugins, including Ruby and Python plugins

• API is first-class: discoverable, versioned, documented.
• MessagePack structured communication enables extensions in any language.
• Remote plugins run as co-processes, safely and asynchronously.
• GUIs, IDEs, web browsers can --embed Neovim as an editor or script host.
• Lua plugins are easy to create just like Vimscript plugins. Your config can live in init.lua!
• AST-producing parsing engine enables faster, more accurate syntax highlighting, code navigation, refactoring, text objects, and motions.

Usable

• Builtin LSP client for semantic code inspection and refactoring (go-to definition, "find references", format, …)
• Strong defaults
• Works the same everywhere: one build-type, one command
• Modern terminal features such as cursor styling, focus events, bracketed paste
• Builtin terminal emulator