Helix vs Neovim

Helix is a free, terminal-based text editor for Linux, macOS, and Windows. Its editing model centers on multiple selections, so commands can act on several selections at once; it also supports multi-cursor editing and macro recording. Tree-sitter integration provides syntax highlighting, indentation calculation, and code navigation. Built-in language server support offers completion, go to definition, documentation, and diagnostics, though users need to install language servers for their chosen programming languages. Helix can select and navigate functions, classes, comments, and syntax tree nodes. Other included tools are a fuzzy finder for files and symbols, project-wide search, themes, automatic bracket pairing, and surround integration. Written in Rust, it can run in a terminal, over SSH, or in tmux. Configuration can be global or project-specific, including themes, keybindings, and language-specific settings; language servers and formatters can be configured through languages.toml files. Helix has no plugin system currently, although one is intended for the future. A graphical frontend is described as a future possibility.

Neovim is a free, Vim-based text editor built for extensibility and usability. It keeps Vim’s editing model and Vimscript v1 support, while configuration lives in init.lua and users can create Lua plugins. Its documented, versioned API and RPC let developers build extensions in many languages; GUIs, IDEs, and web browsers can also embed Neovim. Tree-sitter supports syntax highlighting and text objects, and built-in language-server support provides semantic code inspection and refactoring. Editing tools include multicursor command replay, macro recording, column editing, and large-file handling. A built-in terminal includes modern terminal features. Neovim supports Vim 8.x plugins and more. Stable downloads are listed for Linux, macOS, and Windows, with x86_64 and arm64 builds for each. Windows 8 or newer is required; Windows 7 and older are unsupported. It is licensed under Apache 2.0, with exceptions for parts contributed under the Vim license. Community support is available through GitHub Discussions and vi.stackexchange.com.