diff --git a/src/file.js.c b/src/file.js.c
index e16708a1..984859a1 100644
--- a/src/file.js.c
+++ b/src/file.js.c
@@ -17,15 +17,10 @@
 #include <unistd.h>
 #endif
 
-static JSValue _file_make_directory(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
-static JSValue _file_remove_directory(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
 static JSValue _file_read_file(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
 static JSValue _file_read_file_zip(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
-static JSValue _file_rename_file(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
 static JSValue _file_stat(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
 static JSValue _file_stat_zip(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
-static JSValue _file_unlink_file(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
-static JSValue _file_write_file(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
 
 static double _time_spec_to_double(const uv_timespec_t* time_spec);
 static void _file_on_stat_complete(uv_fs_t* request);
@@ -52,11 +47,6 @@ void tf_file_register(JSContext* context)
 	const char* zip = tf_task_get_zip_path(task);
 	JS_SetPropertyStr(context, global, "File", file);
 	JS_SetPropertyStr(context, file, "readFile", JS_NewCFunction(context, zip ? _file_read_file_zip : _file_read_file, "readFile", 1));
-	JS_SetPropertyStr(context, file, "writeFile", JS_NewCFunction(context, _file_write_file, "writeFile", 2));
-	JS_SetPropertyStr(context, file, "makeDirectory", JS_NewCFunction(context, _file_make_directory, "makeDirectory", 1));
-	JS_SetPropertyStr(context, file, "removeDirectory", JS_NewCFunction(context, _file_remove_directory, "removeDirectory", 1));
-	JS_SetPropertyStr(context, file, "unlinkFile", JS_NewCFunction(context, _file_unlink_file, "unlinkFile", 1));
-	JS_SetPropertyStr(context, file, "renameFile", JS_NewCFunction(context, _file_rename_file, "renameFile", 2));
 	JS_SetPropertyStr(context, file, "stat", JS_NewCFunction(context, zip ? _file_stat_zip : _file_stat, "stat", 1));
 	JS_FreeValue(context, global);
 }
@@ -258,204 +248,6 @@ static JSValue _file_read_file_zip(JSContext* context, JSValueConst this_val, in
 	return promise_value;
 }
 
-static void _file_write_write_callback(uv_fs_t* req)
-{
-	uv_fs_req_cleanup(req);
-	fs_req_t* fsreq = (fs_req_t*)req;
-	tf_task_t* task = req->loop->data;
-	JSContext* context = tf_task_get_context(task);
-	promiseid_t promise = (promiseid_t)(intptr_t)req->data;
-	if (req->result >= 0)
-	{
-		tf_task_resolve_promise(task, promise, JS_NewInt64(context, req->result));
-	}
-	else
-	{
-		tf_task_reject_promise(task, promise, JS_ThrowInternalError(context, "%s", uv_strerror(req->result)));
-	}
-	int result = uv_fs_close(req->loop, req, fsreq->file, _file_async_close_callback);
-	if (result < 0)
-	{
-		uv_fs_req_cleanup(req);
-		tf_free(fsreq);
-	}
-}
-
-static void _file_write_open_callback(uv_fs_t* req)
-{
-	fs_req_t* fsreq = (fs_req_t*)req;
-	uv_fs_req_cleanup(req);
-	tf_task_t* task = req->loop->data;
-	JSContext* context = tf_task_get_context(task);
-	promiseid_t promise = (promiseid_t)(intptr_t)req->data;
-	if (req->result >= 0)
-	{
-		uv_buf_t buf = { .base = fsreq->buffer, .len = fsreq->size };
-		fsreq->file = req->result;
-		int result = uv_fs_write(req->loop, req, fsreq->file, &buf, 1, 0, _file_write_write_callback);
-		if (result < 0)
-		{
-			tf_task_reject_promise(task, promise, JS_ThrowInternalError(context, "%s", uv_strerror(result)));
-			result = uv_fs_close(req->loop, req, fsreq->file, _file_async_close_callback);
-			if (result < 0)
-			{
-				uv_fs_req_cleanup(req);
-				tf_free(fsreq);
-			}
-		}
-	}
-	else
-	{
-		tf_task_reject_promise(task, promise, JS_ThrowInternalError(context, "%s", uv_strerror(req->result)));
-		uv_fs_req_cleanup(req);
-		tf_free(req);
-	}
-}
-
-static JSValue _file_write_file(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
-{
-	void* task = JS_GetContextOpaque(context);
-	const char* file_name = JS_ToCString(context, argv[0]);
-
-	size_t size;
-	uint8_t* buffer = tf_util_try_get_array_buffer(context, &size, argv[1]);
-	bool is_array_buffer = false;
-	if (buffer)
-	{
-		is_array_buffer = true;
-	}
-	else
-	{
-		buffer = (uint8_t*)JS_ToCStringLen(context, &size, argv[1]);
-	}
-
-	promiseid_t promise = -1;
-	JSValue promise_value = tf_task_allocate_promise(task, &promise);
-	fs_req_t* req = tf_malloc(sizeof(fs_req_t) + size);
-	*req = (fs_req_t)
-	{
-		.fs =
-		{
-			.data = (void*)(intptr_t)promise,
-		},
-		.size = size,
-	};
-	memcpy(req->buffer, buffer, size);
-	if (!is_array_buffer)
-	{
-		JS_FreeCString(context, (const char*)buffer);
-	}
-
-	int result = uv_fs_open(tf_task_get_loop(task), &req->fs, file_name, UV_FS_O_CREAT | UV_FS_O_WRONLY, 0644, _file_write_open_callback);
-	if (result < 0)
-	{
-		tf_task_reject_promise(task, promise, JS_ThrowInternalError(context, "%s", uv_strerror(result)));
-	}
-	JS_FreeCString(context, file_name);
-	return promise_value;
-}
-
-static void _file_async_callback(uv_fs_t* req)
-{
-	uv_fs_req_cleanup(req);
-	tf_task_t* task = req->loop->data;
-	JSContext* context = tf_task_get_context(task);
-	promiseid_t promise = (promiseid_t)(intptr_t)req->data;
-	if (req->result == 0)
-	{
-		tf_task_resolve_promise(task, promise, JS_NewInt32(context, req->result));
-	}
-	else
-	{
-		tf_task_reject_promise(task, promise, JS_NewInt32(context, req->result));
-	}
-	tf_free(req);
-}
-
-static JSValue _file_rename_file(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
-{
-	void* task = JS_GetContextOpaque(context);
-	const char* old_name = JS_ToCString(context, argv[0]);
-	const char* new_name = JS_ToCString(context, argv[1]);
-	promiseid_t promise = -1;
-	JSValue promise_value = tf_task_allocate_promise(task, &promise);
-	uv_fs_t* req = tf_malloc(sizeof(uv_fs_t));
-	*req = (uv_fs_t)
-	{
-		.data = (void*)(intptr_t)promise,
-	};
-	int result = uv_fs_rename(tf_task_get_loop(task), req, old_name, new_name,_file_async_callback);
-	JS_FreeCString(context, old_name);
-	JS_FreeCString(context, new_name);
-	if (result < 0)
-	{
-		tf_task_reject_promise(task, promise, JS_NewInt32(context, result));
-	}
-	return promise_value;
-}
-
-static JSValue _file_unlink_file(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
-{
-	void* task = JS_GetContextOpaque(context);
-	const char* file_name = JS_ToCString(context, argv[0]);
-	promiseid_t promise = -1;
-	JSValue promise_value = tf_task_allocate_promise(task, &promise);
-	uv_fs_t* req = tf_malloc(sizeof(uv_fs_t));
-	*req = (uv_fs_t)
-	{
-		.data = (void*)(intptr_t)promise,
-	};
-	int result = uv_fs_unlink(tf_task_get_loop(task), req, file_name, _file_async_callback);
-	JS_FreeCString(context, file_name);
-	if (result < 0)
-	{
-		tf_task_reject_promise(task, promise, JS_NewInt32(context, result));
-	}
-	return promise_value;
-}
-
-JSValue _file_make_directory(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
-{
-	void* task = JS_GetContextOpaque(context);
-	const char* directory = JS_ToCString(context, argv[0]);
-
-	promiseid_t promise = -1;
-	JSValue promise_value = tf_task_allocate_promise(task, &promise);
-	uv_fs_t* req = tf_malloc(sizeof(uv_fs_t));
-	*req = (uv_fs_t)
-	{
-		.data = (void*)(intptr_t)promise,
-	};
-	int result = uv_fs_mkdir(tf_task_get_loop(task), req, directory, 0755, _file_async_callback);
-	JS_FreeCString(context, directory);
-	if (result < 0)
-	{
-		tf_task_reject_promise(task, promise, JS_NewInt32(context, result));
-	}
-	return promise_value;
-}
-
-JSValue _file_remove_directory(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
-{
-	void* task = JS_GetContextOpaque(context);
-	const char* directory = JS_ToCString(context, argv[0]);
-
-	promiseid_t promise = -1;
-	JSValue promise_value = tf_task_allocate_promise(task, &promise);
-	uv_fs_t* req = tf_malloc(sizeof(uv_fs_t));
-	*req = (uv_fs_t)
-	{
-		.data = (void*)(intptr_t)promise,
-	};
-	int result = uv_fs_rmdir(tf_task_get_loop(task), req, directory, _file_async_callback);
-	JS_FreeCString(context, directory);
-	if (result < 0)
-	{
-		tf_task_reject_promise(task, promise, JS_NewInt32(context, result));
-	}
-	return promise_value;
-}
-
 JSValue _file_stat(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
 {
 	void* task = JS_GetContextOpaque(context);
diff --git a/src/tests.c b/src/tests.c
index 98e7b4d7..5eeb962f 100644
--- a/src/tests.c
+++ b/src/tests.c
@@ -542,36 +542,6 @@ static void _test_file(const tf_test_options_t* options)
 		"	exit(1);\n"
 		"}).catch(function(error) {\n"
 		"	print('expected error', error);\n"
-		"});\n"
-		"File.unlinkFile('out/test/new.txt').finally(function() {\n"
-		"	return File.removeDirectory('out/test');\n"
-		"}).finally(function() {\n"
-		"	return File.makeDirectory('out/test').then(function() {\n"
-		"		return File.writeFile('out/test/new.txt', 'hello').then(function(result) {\n"
-		"			return File.readFile('out/test/new.txt').then(function(data) {\n"
-		"				if (utf8Decode(data) != 'hello') {\n"
-		"					print('READ', utf8Decode(data));\n"
-		"					exit(1);\n"
-		"				}\n"
-		"			}).catch(function(error) {\n"
-		"				print('unexpected read error', error);\n"
-		"				exit(1);\n"
-		"			});\n"
-		"		}).catch(function(error) {\n"
-		"			print('unexpected write error', error);\n"
-		"			exit(1);\n"
-		"		});\n"
-		"	}).catch(function(error) {\n"
-		"		print('unexpected make directory error', error);\n"
-		"		exit(1);\n"
-		"	});\n"
-		"}).finally(function() {\n"
-		"	return File.renameFile('out/test/new.txt', 'out/test/renamed.txt').catch(x => print(x)).finally(function() {\n"
-		"		return File.unlinkFile('out/test/renamed.txt').catch(x => print(x)).finally(function() {\n"
-		"			print('removing directory');\n"
-		"			return File.removeDirectory('out/test').catch(x => print(x));\n"
-		"		});\n"
-		"	});\n"
 		"});\n");
 	fclose(file);