diff --git a/Userland/Libraries/LibCore/File.cpp b/Userland/Libraries/LibCore/File.cpp
index 0290d4205e..1adf18b5b5 100644
--- a/Userland/Libraries/LibCore/File.cpp
+++ b/Userland/Libraries/LibCore/File.cpp
@@ -104,10 +104,7 @@ int File::leak_fd()
 
 bool File::is_device() const
 {
-    struct stat stat;
-    if (fstat(fd(), &stat) < 0)
-        return false;
-    return S_ISBLK(stat.st_mode) || S_ISCHR(stat.st_mode);
+    return is_device(fd());
 }
 
 bool File::is_device(DeprecatedString const& filename)
@@ -118,6 +115,14 @@ bool File::is_device(DeprecatedString const& filename)
     return S_ISBLK(st.st_mode) || S_ISCHR(st.st_mode);
 }
 
+bool File::is_device(int fd)
+{
+    struct stat st;
+    if (fstat(fd, &st) < 0)
+        return false;
+    return S_ISBLK(st.st_mode) || S_ISCHR(st.st_mode);
+}
+
 bool File::is_block_device() const
 {
     struct stat stat;
@@ -152,10 +157,7 @@ bool File::is_char_device(DeprecatedString const& filename)
 
 bool File::is_directory() const
 {
-    struct stat stat;
-    if (fstat(fd(), &stat) < 0)
-        return false;
-    return S_ISDIR(stat.st_mode);
+    return is_directory(fd());
 }
 
 bool File::is_directory(DeprecatedString const& filename)
@@ -166,6 +168,14 @@ bool File::is_directory(DeprecatedString const& filename)
     return S_ISDIR(st.st_mode);
 }
 
+bool File::is_directory(int fd)
+{
+    struct stat st;
+    if (fstat(fd, &st) < 0)
+        return false;
+    return S_ISDIR(st.st_mode);
+}
+
 bool File::is_link() const
 {
     struct stat stat;
diff --git a/Userland/Libraries/LibCore/File.h b/Userland/Libraries/LibCore/File.h
index 6ac18fd95c..a2942d4342 100644
--- a/Userland/Libraries/LibCore/File.h
+++ b/Userland/Libraries/LibCore/File.h
@@ -33,9 +33,11 @@ public:
 
     bool is_directory() const;
     static bool is_directory(DeprecatedString const& filename);
+    static bool is_directory(int fd);
 
     bool is_device() const;
     static bool is_device(DeprecatedString const& filename);
+    static bool is_device(int fd);
     bool is_block_device() const;
     static bool is_block_device(DeprecatedString const& filename);
     bool is_char_device() const;