HTML
HTML support is available through the HTML extension.
- Tree-sitter: tree-sitter/tree-sitter-html
 - Language Server: microsoft/vscode-html-languageservice
 
This extension is automatically installed, but if you do not want to use it, you can add the following to your settings:
{
  "auto_install_extensions": {
    "html": false
  }
}
Formatting
By default Zed uses Prettier for formatting HTML.
You can disable format_on_save by adding the following to your Zed settings.json:
  "languages": {
    "HTML": {
      "format_on_save": "off",
    }
  }
You can still trigger formatting manually with {#kb editor::Format} or by opening the Command Palette ({#kb command_palette::Toggle}) and selecting "Format Document".
LSP Formatting
To use the vscode-html-language-server language server auto-formatting instead of Prettier, add the following to your Zed settings:
  "languages": {
    "HTML": {
      "formatter": "language_server",
    }
  }
You can customize various formatting options for vscode-html-language-server via your Zed settings.json:
  "lsp": {
    "vscode-html-language-server": {
      "settings": {
        "html": {
          "format": {
            // Indent under <html> and <head> (default: false)
            "indentInnerHtml": true,
            // Disable formatting inside <svg> or <script>
            "contentUnformatted": "svg,script",
            // Add an extra newline before <div> and <p>
            "extraLiners": "div,p"
          }
        }
      }
    }
  }