diff --git a/src/main/python/macro_action.py b/src/main/python/macro_action.py
index 4b58b3d..78b0cdf 100644
--- a/src/main/python/macro_action.py
+++ b/src/main/python/macro_action.py
@@ -24,6 +24,9 @@ class BasicAction:
                 self, self.tag, act[0]
             ))
 
+    def __eq__(self, other):
+        return self.tag == other.tag
+
 
 class ActionText(BasicAction):
 
@@ -43,6 +46,9 @@ class ActionText(BasicAction):
         super().restore(act)
         self.text = act[1]
 
+    def __eq__(self, other):
+        return super().__eq__(other) and self.text == other.text
+
 
 class ActionSequence(BasicAction):
 
@@ -77,6 +83,9 @@ class ActionSequence(BasicAction):
         for qmk_id in act[1:]:
             self.sequence.append(Keycode.find_by_qmk_id(qmk_id))
 
+    def __eq__(self, other):
+        return super().__eq__(other) and self.sequence == other.sequence
+
 
 class ActionDown(ActionSequence):
 
@@ -122,3 +131,6 @@ class ActionDelay(BasicAction):
     def restore(self, act):
         super().restore(act)
         self.delay = act[1]
+
+    def __eq__(self, other):
+        return super().__eq__(other) and self.delay == other.delay
diff --git a/src/main/python/test/test_macro.py b/src/main/python/test/test_macro.py
index 9d5b620..21c378c 100644
--- a/src/main/python/test/test_macro.py
+++ b/src/main/python/test/test_macro.py
@@ -1,7 +1,9 @@
 # SPDX-License-Identifier: GPL-2.0-or-later
 import unittest
 
+from keyboard_comm import DummyKeyboard
 from keycodes import Keycode
+from macro_action import ActionTap, ActionDown, ActionText, ActionDelay
 from macro_key import KeyDown, KeyTap, KeyUp, KeyString
 from macro_optimizer import remove_repeats, replace_with_tap, replace_with_string
 
@@ -27,3 +29,57 @@ class TestMacro(unittest.TestCase):
 
     def test_replace_string(self):
         self.assertEqual(replace_with_string([KeyTap(KC_A), KeyTap(KC_B)]), [KeyString("ab")])
+
+    def test_serialize_v1(self):
+        kb = DummyKeyboard(None)
+        kb.vial_protocol = 1
+        data = kb.macro_serialize([ActionText("Hello"), ActionTap([KC_A, KC_B, KC_C]), ActionText("World"),
+                                   ActionDown([KC_C, KC_B, KC_A])])
+        self.assertEqual(data, b"Hello\x01\x04\x01\x05\x01\x06World\x02\x06\x02\x05\x02\x04")
+
+    def test_deserialize_v1(self):
+        kb = DummyKeyboard(None)
+        kb.vial_protocol = 1
+        macro = kb.macro_deserialize(b"Hello\x01\x04\x01\x05\x01\x06World\x02\x06\x02\x05\x02\x04")
+        self.assertEqual(macro, [ActionText("Hello"), ActionTap([KC_A, KC_B, KC_C]), ActionText("World"),
+                                 ActionDown([KC_C, KC_B, KC_A])])
+
+    def test_serialize_v2(self):
+        kb = DummyKeyboard(None)
+        kb.vial_protocol = 2
+        data = kb.macro_serialize([ActionText("Hello"), ActionTap([KC_A, KC_B, KC_C]), ActionText("World"),
+                                   ActionDown([KC_C, KC_B, KC_A]), ActionDelay(1000)])
+        self.assertEqual(data, b"Hello\x01\x01\x04\x01\x01\x05\x01\x01\x06World\x01\x02\x06\x01\x02\x05\x01\x02\x04"
+                               b"\x01\x04\xEC\x04")
+        data = kb.macro_serialize([ActionText("Hello"), ActionTap([KC_A, KC_B, KC_C]), ActionText("World"),
+                                   ActionDown([KC_C, KC_B, KC_A]), ActionDelay(0)])
+        self.assertEqual(data, b"Hello\x01\x01\x04\x01\x01\x05\x01\x01\x06World\x01\x02\x06\x01\x02\x05\x01\x02\x04"
+                               b"\x01\x04\x01\x01")
+        data = kb.macro_serialize([ActionText("Hello"), ActionTap([KC_A, KC_B, KC_C]), ActionText("World"),
+                                   ActionDown([KC_C, KC_B, KC_A]), ActionDelay(1)])
+        self.assertEqual(data, b"Hello\x01\x01\x04\x01\x01\x05\x01\x01\x06World\x01\x02\x06\x01\x02\x05\x01\x02\x04"
+                               b"\x01\x04\x02\x01")
+        data = kb.macro_serialize([ActionText("Hello"), ActionTap([KC_A, KC_B, KC_C]), ActionText("World"),
+                                   ActionDown([KC_C, KC_B, KC_A]), ActionDelay(256)])
+        self.assertEqual(data, b"Hello\x01\x01\x04\x01\x01\x05\x01\x01\x06World\x01\x02\x06\x01\x02\x05\x01\x02\x04"
+                               b"\x01\x04\x02\x02")
+
+    def test_deserialize_v2(self):
+        kb = DummyKeyboard(None)
+        kb.vial_protocol = 2
+        macro = kb.macro_deserialize(b"Hello\x01\x01\x04\x01\x01\x05\x01\x01\x06World\x01\x02\x06\x01\x02\x05"
+                                     b"\x01\x02\x04\x01\x04\xEC\x04")
+        self.assertEqual(macro, [ActionText("Hello"), ActionTap([KC_A, KC_B, KC_C]), ActionText("World"),
+                                 ActionDown([KC_C, KC_B, KC_A]), ActionDelay(1000)])
+        macro = kb.macro_deserialize(b"Hello\x01\x01\x04\x01\x01\x05\x01\x01\x06World\x01\x02\x06\x01\x02\x05"
+                                     b"\x01\x02\x04\x01\x04\x01\x01")
+        self.assertEqual(macro, [ActionText("Hello"), ActionTap([KC_A, KC_B, KC_C]), ActionText("World"),
+                                 ActionDown([KC_C, KC_B, KC_A]), ActionDelay(0)])
+        macro = kb.macro_deserialize(b"Hello\x01\x01\x04\x01\x01\x05\x01\x01\x06World\x01\x02\x06\x01\x02\x05"
+                                     b"\x01\x02\x04\x01\x04\x02\x01")
+        self.assertEqual(macro, [ActionText("Hello"), ActionTap([KC_A, KC_B, KC_C]), ActionText("World"),
+                                 ActionDown([KC_C, KC_B, KC_A]), ActionDelay(1)])
+        macro = kb.macro_deserialize(b"Hello\x01\x01\x04\x01\x01\x05\x01\x01\x06World\x01\x02\x06\x01\x02\x05"
+                                     b"\x01\x02\x04\x01\x04\x02\x02")
+        self.assertEqual(macro, [ActionText("Hello"), ActionTap([KC_A, KC_B, KC_C]), ActionText("World"),
+                                 ActionDown([KC_C, KC_B, KC_A]), ActionDelay(256)])