diff --git a/Configurations/NonSwiftWorkaround.xcconfig b/Configurations/NonSwiftWorkaround.xcconfig
index 467476c..638c0fc 100644
--- a/Configurations/NonSwiftWorkaround.xcconfig
+++ b/Configurations/NonSwiftWorkaround.xcconfig
@@ -17,6 +17,7 @@ OTHER_SWIFT_FLAGS = $(inherited) -Xcc -fmodule-map-file=$(GENERATED_MODULEMAP_DI
 OTHER_SWIFT_FLAGS = $(inherited) -Xcc -fmodule-map-file=$(GENERATED_MODULEMAP_DIR)/TreeSitterGosum.modulemap
 OTHER_SWIFT_FLAGS = $(inherited) -Xcc -fmodule-map-file=$(GENERATED_MODULEMAP_DIR)/TreeSitterGoWork.modulemap
 OTHER_SWIFT_FLAGS = $(inherited) -Xcc -fmodule-map-file=$(GENERATED_MODULEMAP_DIR)/TreeSitterHTML.modulemap
+OTHER_SWIFT_FLAGS = $(inherited) -Xcc -fmodule-map-file=$(GENERATED_MODULEMAP_DIR)/TreeSitterJavaScript.modulemap
 OTHER_SWIFT_FLAGS = $(inherited) -Xcc -fmodule-map-file=$(GENERATED_MODULEMAP_DIR)/TreeSitterJSON.modulemap
 OTHER_SWIFT_FLAGS = $(inherited) -Xcc -fmodule-map-file=$(GENERATED_MODULEMAP_DIR)/TreeSitterMarkdown.modulemap
 OTHER_SWIFT_FLAGS = $(inherited) -Xcc -fmodule-map-file=$(GENERATED_MODULEMAP_DIR)/TreeSitterMarkdownInline.modulemap
diff --git a/Dependencies/Package.swift b/Dependencies/Package.swift
index 958c6fa..21b0e05 100644
--- a/Dependencies/Package.swift
+++ b/Dependencies/Package.swift
@@ -22,6 +22,7 @@ let package = Package(
 		.package(url: "https://github.com/camdencheek/tree-sitter-go-mod", branch: "main"),
 		.package(url: "https://github.com/tree-sitter-grammars/tree-sitter-go-sum", branch: "master"),
 		.package(url: "https://github.com/mattmassicotte/tree-sitter-go-work", branch: "feature/spm"),
+		.package(url: "https://github.com/tree-sitter/tree-sitter-javascript", branch: "master"),
 		.package(url: "https://github.com/tree-sitter/tree-sitter-json", branch: "master"),
 		.package(url: "https://github.com/tree-sitter-grammars/tree-sitter-markdown", branch: "split_parser"),
 		.package(url: "https://github.com/tree-sitter/tree-sitter-ocaml", branch: "master"),
@@ -44,6 +45,7 @@ let package = Package(
 				.product(name: "TreeSitterGosum", package: "tree-sitter-go-sum"),
 				.product(name: "TreeSitterGoWork", package: "tree-sitter-go-work"),
 				.product(name: "TreeSitterHTML", package: "tree-sitter-html"),
+				.product(name: "TreeSitterJavaScript", package: "tree-sitter-javascript"),
 				.product(name: "TreeSitterJSON", package: "tree-sitter-json"),
 				.product(name: "TreeSitterMarkdown", package: "tree-sitter-markdown"),
 				.product(name: "TreeSitterOCaml", package: "tree-sitter-ocaml"),
diff --git a/Dependencies/Sources/TreeSitterParsers/TreeSitterParsers.swift b/Dependencies/Sources/TreeSitterParsers/TreeSitterParsers.swift
index da171f5..ea01607 100644
--- a/Dependencies/Sources/TreeSitterParsers/TreeSitterParsers.swift
+++ b/Dependencies/Sources/TreeSitterParsers/TreeSitterParsers.swift
@@ -8,6 +8,7 @@
 @_exported import TreeSitterGosum
 @_exported import TreeSitterGoWork
 @_exported import TreeSitterHTML
+@_exported import TreeSitterJavaScript
 @_exported import TreeSitterJSON
 @_exported import TreeSitterMarkdown
 @_exported import TreeSitterMarkdownInline
diff --git a/Edit/Modules/SyntaxService/LanguageProfile+Profiles.swift b/Edit/Modules/SyntaxService/LanguageProfile+Profiles.swift
index 228a000..4f1d9b6 100644
--- a/Edit/Modules/SyntaxService/LanguageProfile+Profiles.swift
+++ b/Edit/Modules/SyntaxService/LanguageProfile+Profiles.swift
@@ -40,6 +40,10 @@ extension LanguageProfile {
 			return LanguageProfile.htmlProfile
 		}
 
+		if utType.conforms(to: .javaScript) {
+			return LanguageProfile.javaScriptProfile
+		}
+
 		if utType.conforms(to: .json) {
 			return LanguageProfile.jsonProfile
 		}
@@ -131,6 +135,11 @@ extension LanguageProfile {
 		language: Language(tree_sitter_html())
 	)
 
+	static let javaScriptProfile = LanguageProfile(
+		RootLanguage.javaScript,
+		language: Language(tree_sitter_javascript())
+	)
+
 	static let jsonProfile = LanguageProfile(
 		RootLanguage.json,
 		language: Language(tree_sitter_json())
diff --git a/Edit/Modules/SyntaxService/RootLanguage.swift b/Edit/Modules/SyntaxService/RootLanguage.swift
index 3ce8ba6..4af54e5 100644
--- a/Edit/Modules/SyntaxService/RootLanguage.swift
+++ b/Edit/Modules/SyntaxService/RootLanguage.swift
@@ -17,6 +17,7 @@ public enum RootLanguage: Hashable, CaseIterable, Sendable {
 	case goSum
 	case goWork
 	case html
+	case javaScript
 	case json
 	case markdown
 	case ocaml
@@ -38,6 +39,7 @@ public enum RootLanguage: Hashable, CaseIterable, Sendable {
 		case .goSum: .goSumFile
 		case .goWork: .goWorkFile
 		case .html: .html
+		case .javaScript: .javaScript
 		case .json: .json
 		case .markdown: .markdown
 		case .ocaml: .ocamlSource
@@ -77,6 +79,8 @@ extension RootLanguage: RawRepresentable {
 			self = .goWork
 		case "html":
 			self = .html
+		case "javascript":
+			self = .javaScript
 		case "json":
 			self = .json
 		case "markdown":
@@ -120,6 +124,8 @@ extension RootLanguage: RawRepresentable {
 			"Go Work"
 		case .html:
 			"HTML"
+		case .javaScript:
+			"JavaScript"
 		case .json:
 			"JSON"
 		case .markdown:
diff --git a/EditIntents/HighlightIntent.swift b/EditIntents/HighlightIntent.swift
index 61f0575..1153b12 100644
--- a/EditIntents/HighlightIntent.swift
+++ b/EditIntents/HighlightIntent.swift
@@ -20,6 +20,7 @@ extension RootLanguage: AppEnum {
 			.goSum: "Go Sum",
 			.goWork: "Go Work",
 			.html: "HTML",
+			.javaScript: "JavaScript",
 			.json: "JSON",
 			.markdown: "Markdown",
 			.ocaml: "OCaml",
diff --git a/QuickLookPreview/Info.plist b/QuickLookPreview/Info.plist
index d6dfedf..505b84d 100644
--- a/QuickLookPreview/Info.plist
+++ b/QuickLookPreview/Info.plist
@@ -31,6 +31,7 @@
 				<string>org.rust-lang.rust-script</string>
 				<string>public.shell-script</string>
 				<string>public.swift-source</string>
+				<string>com.netscape.javascript-source</string>
 			</array>
 			<key>QLSupportsSearchableItems</key>
 			<false/>