Which Programming Languages Does LunarVim Support?

LunarVim lists support for Angular, Ansible, C, C++, C#, Go, HCL, Java, JavaScript, JSON, Julia, Lua, PowerShell, Python, QML, Ruby, Rust, Scala, Swift, Terraform, TypeScript, and Vue, with the site noting "and more." That list is a starting point rather than a hard limit: LunarVim is an IDE layer for Neovim, and its language features come from Neovim's LSP, linting, formatting, and debugging integrations, which you can extend or adjust in your own config.

What the listed languages cover

The languages named on lunarvim.org span general-purpose, web, infrastructure, and scripting work:

If your language appears here, you can expect it to fit into the same feature set LunarVim advertises: autocompletion, LSP, linting, formatting, and debugging. The exact behavior for each language depends on the language server and tools you have installed, not on LunarVim alone.

How language support actually works

LunarVim ships with an opinionated default config, but its language features are not hardcoded per language. The site describes the built-in features as autocompletion, integrated terminal, file explorer, fuzzy finder, LSP, linting, formatting, and debugging. In practice:

• LSP provides completion, diagnostics, and navigation for a language once the matching language server is available.
• Linting and formatting depend on external linters and formatters for that language.
• Debugging depends on a debug adapter for that language.

So "supported" means LunarVim has a place to wire these in, and the listed languages are the ones the project highlights. For a language not on the list, you can still add it through your own configuration.

Adjusting or extending language setup

The site states that every builtin plugin can be toggled on or off in config.lua, and that this file is where you add your own plugins, keymaps, autocommands, leader bindings, and other custom settings. That is the mechanism for language-specific changes.

A practical sequence:

1. Confirm your language appears in the list above, or decide to add it yourself.
2. Install the relevant language server, linter, formatter, or debug adapter for that language.
3. Open config.lua and enable, disable, or add the plugins and settings that connect those tools.
4. Restart or reload and verify completion, diagnostics, formatting, and debugging on a real file.

Expected result: the language behaves like the other listed languages, because the underlying features are the same LSP/lint/format/debug pipeline.

Common sticking points

• The list is not exhaustive. "And more" means the named languages are examples, not a closed set.
• LunarVim alone is not enough. A language server or formatter still has to be present for full functionality.
• Your Neovim config is not lost. The site explicitly says you can keep your existing Neovim config, so language settings you already have can coexist with LunarVim's layer.
• Speed is handled by design. LunarVim lazyloads plugins where possible, and disabled plugins do not reduce speed because the plugin list is compiled with only active plugins, per the site.

If your main question is whether your language is covered, check the list first; if it is there, the remaining work is making sure the right language tooling is installed and referenced in config.lua.