widechar.nvim

A NeoVim plugin that highlights non-ASCII characters (outside the 0-127 range) in your code.

Features

• Automatically highlights wide characters (non-ASCII) in lime green with a dark background
• Skips special buffers (help, terminal, quickfix, etc.)
• Lightweight and efficient
• Written in pure Lua

Installation

The plugin activates itself on startup — no setup() call is required unless you want to customize colors.

lazy.nvim

{ 'martinholy/widechar.nvim' }

vim.pack (NeoVim 0.12+)

vim.pack.add({
    'https://github.com/martinholy/widechar.nvim',
})

Usage

Once installed, the plugin automatically highlights any character outside the ASCII range (0-127) whenever you open a buffer. Special buffers (help, terminal, quickfix, etc.) are skipped.

Commands

• :WideCharToggle — enable/disable highlighting in every attached buffer.

Customization

You can customize the colors by passing them to the setup function:

require('widechar').setup({
    fg = '#afd700',  -- lime green foreground
    bg = '#303030'   -- dark gray background
})

License

MIT