diff --git a/Libraries/LibWeb/CMakeLists.txt b/Libraries/LibWeb/CMakeLists.txt
index 659a7186fd6..134b4129d88 100644
--- a/Libraries/LibWeb/CMakeLists.txt
+++ b/Libraries/LibWeb/CMakeLists.txt
@@ -817,6 +817,7 @@ set(SOURCES
     WebGL/WebGLSampler.cpp
     WebGL/WebGLShader.cpp
     WebGL/WebGLShaderPrecisionFormat.cpp
+    WebGL/WebGLSync.cpp
     WebGL/WebGLTexture.cpp
     WebGL/WebGLUniformLocation.cpp
     WebIDL/AbstractOperations.cpp
diff --git a/Libraries/LibWeb/WebGL/WebGLSync.cpp b/Libraries/LibWeb/WebGL/WebGLSync.cpp
new file mode 100644
index 00000000000..cc89e5cdff6
--- /dev/null
+++ b/Libraries/LibWeb/WebGL/WebGLSync.cpp
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2024, Andrew Kaster <andrew@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibJS/Runtime/Realm.h>
+#include <LibWeb/Bindings/Intrinsics.h>
+#include <LibWeb/Bindings/WebGLSyncPrototype.h>
+#include <LibWeb/WebGL/WebGLSync.h>
+
+namespace Web::WebGL {
+
+GC_DEFINE_ALLOCATOR(WebGLSync);
+
+GC::Ref<WebGLSync> WebGLSync::create(JS::Realm& realm, GLuint handle)
+{
+    return realm.create<WebGLSync>(realm, handle);
+}
+
+WebGLSync::WebGLSync(JS::Realm& realm, GLuint handle)
+    : WebGLObject(realm, handle)
+{
+}
+
+WebGLSync::~WebGLSync() = default;
+
+void WebGLSync::initialize(JS::Realm& realm)
+{
+    Base::initialize(realm);
+    WEB_SET_PROTOTYPE_FOR_INTERFACE(WebGLSync);
+}
+
+}
diff --git a/Libraries/LibWeb/WebGL/WebGLSync.h b/Libraries/LibWeb/WebGL/WebGLSync.h
new file mode 100644
index 00000000000..f64195c7125
--- /dev/null
+++ b/Libraries/LibWeb/WebGL/WebGLSync.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2024, Andrew Kaster <andrew@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/WebGL/Types.h>
+#include <LibWeb/WebGL/WebGLObject.h>
+
+namespace Web::WebGL {
+
+class WebGLSync : public WebGLObject {
+    WEB_PLATFORM_OBJECT(WebGLSync, WebGLObject);
+    GC_DECLARE_ALLOCATOR(WebGLSync);
+
+public:
+    static GC::Ref<WebGLSync> create(JS::Realm& realm, GLuint handle);
+
+    virtual ~WebGLSync() override;
+
+protected:
+    explicit WebGLSync(JS::Realm&, GLuint handle);
+
+    virtual void initialize(JS::Realm&) override;
+};
+
+}
diff --git a/Libraries/LibWeb/WebGL/WebGLSync.idl b/Libraries/LibWeb/WebGL/WebGLSync.idl
new file mode 100644
index 00000000000..0a69dadcf9b
--- /dev/null
+++ b/Libraries/LibWeb/WebGL/WebGLSync.idl
@@ -0,0 +1,6 @@
+#import <WebGL/WebGLObject.idl>
+
+// https://registry.khronos.org/webgl/specs/latest/2.0/#3.4
+[Exposed=(Window,Worker)]
+interface WebGLSync : WebGLObject {
+};
diff --git a/Libraries/LibWeb/idl_files.cmake b/Libraries/LibWeb/idl_files.cmake
index bf44c9e8ade..5753b8df023 100644
--- a/Libraries/LibWeb/idl_files.cmake
+++ b/Libraries/LibWeb/idl_files.cmake
@@ -381,6 +381,7 @@ libweb_js_bindings(WebGL/WebGLRenderingContext)
 libweb_js_bindings(WebGL/WebGLSampler)
 libweb_js_bindings(WebGL/WebGLShader)
 libweb_js_bindings(WebGL/WebGLShaderPrecisionFormat)
+libweb_js_bindings(WebGL/WebGLSync)
 libweb_js_bindings(WebGL/WebGLTexture)
 libweb_js_bindings(WebGL/WebGLUniformLocation)
 libweb_js_bindings(WebIDL/DOMException)
diff --git a/Tests/LibWeb/Text/expected/all-window-properties.txt b/Tests/LibWeb/Text/expected/all-window-properties.txt
index 2b13aa60fbe..9712e3a6e57 100644
--- a/Tests/LibWeb/Text/expected/all-window-properties.txt
+++ b/Tests/LibWeb/Text/expected/all-window-properties.txt
@@ -410,6 +410,7 @@ WebGLRenderingContext
 WebGLSampler
 WebGLShader
 WebGLShaderPrecisionFormat
+WebGLSync
 WebGLTexture
 WebGLUniformLocation
 WebKitCSSMatrix