diff --git a/synapse/config/modules.py b/synapse/config/modules.py
new file mode 100644
index 0000000000..3209e1c492
--- /dev/null
+++ b/synapse/config/modules.py
@@ -0,0 +1,49 @@
+# Copyright 2021 The Matrix.org Foundation C.I.C.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from typing import Any, Dict, List, Tuple
+
+from synapse.config._base import Config, ConfigError
+from synapse.util.module_loader import load_module
+
+
+class ModulesConfig(Config):
+ section = "modules"
+
+ def read_config(self, config: dict, **kwargs):
+ self.loaded_modules: List[Tuple[Any, Dict]] = []
+
+ configured_modules = config.get("modules") or []
+ for i, module in enumerate(configured_modules):
+ config_path = ("modules", "<item %i>" % i)
+ if not isinstance(module, dict):
+ raise ConfigError("expected a mapping", config_path)
+
+ self.loaded_modules.append(load_module(module, config_path))
+
+ def generate_config_section(self, **kwargs):
+ return """
+ ## Modules ##
+
+ # Server admins can expand Synapse's functionality with external modules.
+ #
+ # See https://matrix-org.github.io/synapse/develop/modules.html for more
+ # documentation on how to configure or create custom modules for Synapse.
+ #
+ modules:
+ # - module: my_super_module.MySuperClass
+ # config:
+ # do_thing: true
+ # - module: my_other_super_module.SomeClass
+ # config: {}
+ """
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