diff --git a/Libraries/LibWeb/IndexedDB/IDBIndex.cpp b/Libraries/LibWeb/IndexedDB/IDBIndex.cpp
index 9d11c0ec8dd..a62ea6e5e31 100644
--- a/Libraries/LibWeb/IndexedDB/IDBIndex.cpp
+++ b/Libraries/LibWeb/IndexedDB/IDBIndex.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <LibJS/Runtime/Array.h>
 #include <LibWeb/Bindings/IDBIndexPrototype.h>
 #include <LibWeb/Bindings/Intrinsics.h>
 #include <LibWeb/HTML/EventNames.h>
@@ -15,14 +16,17 @@ GC_DEFINE_ALLOCATOR(IDBIndex);
 
 IDBIndex::~IDBIndex() = default;
 
-IDBIndex::IDBIndex(JS::Realm& realm)
+IDBIndex::IDBIndex(JS::Realm& realm, GC::Ref<Index> index, GC::Ref<IDBObjectStore> object_store)
     : PlatformObject(realm)
+    , m_index(index)
+    , m_object_store_handle(object_store)
+    , m_name(index->name())
 {
 }
 
-GC::Ref<IDBIndex> IDBIndex::create(JS::Realm& realm)
+GC::Ref<IDBIndex> IDBIndex::create(JS::Realm& realm, GC::Ref<Index> index, GC::Ref<IDBObjectStore> object_store)
 {
-    return realm.create<IDBIndex>(realm);
+    return realm.create<IDBIndex>(realm, index, object_store);
 }
 
 void IDBIndex::initialize(JS::Realm& realm)
@@ -31,4 +35,68 @@ void IDBIndex::initialize(JS::Realm& realm)
     WEB_SET_PROTOTYPE_FOR_INTERFACE(IDBIndex);
 }
 
+void IDBIndex::visit_edges(Visitor& visitor)
+{
+    Base::visit_edges(visitor);
+    visitor.visit(m_index);
+    visitor.visit(m_object_store_handle);
+}
+
+// https://w3c.github.io/IndexedDB/#dom-idbindex-name
+WebIDL::ExceptionOr<void> IDBIndex::set_name(String const& value)
+{
+    auto& realm = this->realm();
+
+    // 1. Let name be the given value.
+    auto const& name = value;
+
+    // 2. Let transaction be this’s transaction.
+    auto transaction = this->transaction();
+
+    // 3. Let index be this’s index.
+    auto index = this->index();
+
+    // 4. If transaction is not an upgrade transaction, throw an "InvalidStateError" DOMException.
+    if (!transaction->is_upgrade_transaction())
+        return WebIDL::InvalidStateError::create(realm, "Transaction is not an upgrade transaction"_string);
+
+    // 5. If transaction’s state is not active, then throw a "TransactionInactiveError" DOMException.
+    if (transaction->state() != IDBTransaction::TransactionState::Active)
+        return WebIDL::TransactionInactiveError::create(realm, "Transaction is not active"_string);
+
+    // FIXME: 6. If index or index’s object store has been deleted, throw an "InvalidStateError" DOMException.
+
+    // 7. If index’s name is equal to name, terminate these steps.
+    if (index->name() == name)
+        return {};
+
+    // 8. If an index named name already exists in index’s object store, throw a "ConstraintError" DOMException.
+    for (auto const& existing_index : m_object_store_handle->index_set()) {
+        if (existing_index->name() == name)
+            return WebIDL::ConstraintError::create(realm, "An index with the given name already exists"_string);
+    }
+
+    // 9. Set index’s name to name.
+    index->set_name(name);
+
+    // 10. Set this’s name to name.
+    m_name = name;
+
+    return {};
+}
+
+// https://w3c.github.io/IndexedDB/#dom-idbindex-keypath
+JS::Value IDBIndex::key_path() const
+{
+    return m_index->key_path().visit(
+        [&](String const& value) -> JS::Value {
+            return JS::PrimitiveString::create(realm().vm(), value);
+        },
+        [&](Vector<String> const& value) -> JS::Value {
+            return JS::Array::create_from<String>(realm(), value.span(), [&](auto const& entry) -> JS::Value {
+                return JS::PrimitiveString::create(realm().vm(), entry);
+            });
+        });
+}
+
 }
diff --git a/Libraries/LibWeb/IndexedDB/IDBIndex.h b/Libraries/LibWeb/IndexedDB/IDBIndex.h
index 3e1b080a6db..ba8ef9f4815 100644
--- a/Libraries/LibWeb/IndexedDB/IDBIndex.h
+++ b/Libraries/LibWeb/IndexedDB/IDBIndex.h
@@ -8,6 +8,8 @@
 
 #include <LibGC/Heap.h>
 #include <LibWeb/Bindings/PlatformObject.h>
+#include <LibWeb/IndexedDB/IDBObjectStore.h>
+#include <LibWeb/IndexedDB/Internal/Index.h>
 
 namespace Web::IndexedDB {
 
@@ -18,11 +20,32 @@ class IDBIndex : public Bindings::PlatformObject {
 
 public:
     virtual ~IDBIndex() override;
-    [[nodiscard]] static GC::Ref<IDBIndex> create(JS::Realm&);
+    [[nodiscard]] static GC::Ref<IDBIndex> create(JS::Realm&, GC::Ref<Index>, GC::Ref<IDBObjectStore>);
+
+    WebIDL::ExceptionOr<void> set_name(String const& value);
+    String name() const { return m_name; }
+    GC::Ref<IDBObjectStore> object_store() { return m_object_store_handle; }
+    JS::Value key_path() const;
+    bool multi_entry() const { return m_index->multi_entry(); }
+    bool unique() const { return m_index->unique(); }
+
+    // The transaction of an index handle is the transaction of its associated object store handle.
+    GC::Ref<IDBTransaction> transaction() { return m_object_store_handle->transaction(); }
+    GC::Ref<Index> index() { return m_index; }
+    GC::Ref<IDBObjectStore> store() { return m_object_store_handle; }
 
 protected:
-    explicit IDBIndex(JS::Realm&);
+    explicit IDBIndex(JS::Realm&, GC::Ref<Index>, GC::Ref<IDBObjectStore>);
     virtual void initialize(JS::Realm&) override;
+    virtual void visit_edges(Visitor& visitor) override;
+
+private:
+    // An index handle has an associated index and an associated object store handle.
+    GC::Ref<Index> m_index;
+    GC::Ref<IDBObjectStore> m_object_store_handle;
+
+    // An index handle has a name, which is initialized to the name of the associated index when the index handle is created.
+    String m_name;
 };
 
 }
diff --git a/Libraries/LibWeb/IndexedDB/IDBIndex.idl b/Libraries/LibWeb/IndexedDB/IDBIndex.idl
index a096122f40d..85e0ae37745 100644
--- a/Libraries/LibWeb/IndexedDB/IDBIndex.idl
+++ b/Libraries/LibWeb/IndexedDB/IDBIndex.idl
@@ -2,11 +2,11 @@
 
 [Exposed=(Window,Worker)]
 interface IDBIndex {
-    [FIXME] attribute DOMString name;
-    [FIXME, SameObject] readonly attribute IDBObjectStore objectStore;
-    [FIXME] readonly attribute any keyPath;
-    [FIXME] readonly attribute boolean multiEntry;
-    [FIXME] readonly attribute boolean unique;
+    attribute DOMString name;
+    [SameObject] readonly attribute IDBObjectStore objectStore;
+    readonly attribute any keyPath;
+    readonly attribute boolean multiEntry;
+    readonly attribute boolean unique;
     [FIXME, NewObject] IDBRequest get(any query);
     [FIXME, NewObject] IDBRequest getKey(any query);
     [FIXME, NewObject] IDBRequest getAll(optional any query, optional [EnforceRange] unsigned long count);