diff --git a/CHANGELOG.md b/CHANGELOG.md
index 26a1d3180..c7c1eceaa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,7 @@ Darshan Phaldesai (luiq54), Igor Santarek (jegor377), rob-a-bolton, Kinwailo
 - You can now drag & drop files into the program while it's running to open them. You can open .pxo files, image files and palette (json and gpl) files this way.
 - You can now draw on the tiling mode previews! ([#65](https://github.com/Orama-Interactive/Pixelorama/issues/65))
 - Added Resize Canvas option to Image menu.
+- Added Symmetry Guides. They let you change the axis of symmetry for mirroring. ([#133](https://github.com/Orama-Interactive/Pixelorama/issues/133))
 - Palettes can now be created from the colors of the selected sprite.
 - You can now preview how the frames of the spritesheet you are importing will look.
 - You can now import image files as layers. Their size will be cropped to the project's size.
diff --git a/src/Autoload/Global.gd b/src/Autoload/Global.gd
index 65076edb7..c93e65f42 100644
--- a/src/Autoload/Global.gd
+++ b/src/Autoload/Global.gd
@@ -42,6 +42,8 @@ var right_cursor_tool_texture := ImageTexture.new()
 
 var image_clipboard : Image
 var play_only_tags := true
+var show_x_symmetry_axis := false
+var show_y_symmetry_axis := false
 
 # Preferences
 var theme_type : int = Theme_Types.DARK
diff --git a/src/Classes/Project.gd b/src/Classes/Project.gd
index 90c853359..4cee8602a 100644
--- a/src/Classes/Project.gd
+++ b/src/Classes/Project.gd
@@ -126,7 +126,12 @@ func change_project() -> void:
 	for guide in Global.canvas.get_children():
 		if guide is Guide:
 			if guide in guides:
-				guide.visible = true
+				guide.visible = Global.show_guides
+				if guide is SymmetryGuide:
+					if guide.type == Guide.Types.HORIZONTAL:
+						guide.visible = Global.show_x_symmetry_axis and Global.show_guides
+					else:
+						guide.visible = Global.show_y_symmetry_axis and Global.show_guides
 			else:
 				guide.visible = false
 
diff --git a/src/Tools/Base.gd b/src/Tools/Base.gd
index b2939db82..f281dc120 100644
--- a/src/Tools/Base.gd
+++ b/src/Tools/Base.gd
@@ -27,11 +27,21 @@ func _on_PixelPerfect_toggled(button_pressed : bool):
 func _on_Horizontal_toggled(button_pressed : bool):
 	tool_slot.horizontal_mirror = button_pressed
 	tool_slot.save_config()
+	Global.show_y_symmetry_axis = button_pressed
+	# If the button is not pressed but another button is, keep the symmetry guide visible
+	if !button_pressed and (Tools._slots[BUTTON_LEFT].horizontal_mirror or Tools._slots[BUTTON_RIGHT].horizontal_mirror):
+		Global.show_y_symmetry_axis = true
+	Global.current_project.y_symmetry_axis.visible = Global.show_y_symmetry_axis and Global.show_guides
 
 
 func _on_Vertical_toggled(button_pressed : bool):
 	tool_slot.vertical_mirror = button_pressed
 	tool_slot.save_config()
+	Global.show_x_symmetry_axis = button_pressed
+	# If the button is not pressed but another button is, keep the symmetry guide visible
+	if !button_pressed and (Tools._slots[BUTTON_LEFT].vertical_mirror or Tools._slots[BUTTON_RIGHT].vertical_mirror):
+		Global.show_x_symmetry_axis = true
+	Global.current_project.x_symmetry_axis.visible = Global.show_x_symmetry_axis and Global.show_guides
 
 
 func save_config() -> void:
diff --git a/src/UI/Rulers/SymmetryGuide.gd b/src/UI/Rulers/SymmetryGuide.gd
index 7f9301c1a..0e08794ce 100644
--- a/src/UI/Rulers/SymmetryGuide.gd
+++ b/src/UI/Rulers/SymmetryGuide.gd
@@ -4,6 +4,7 @@ class_name SymmetryGuide extends Guide
 func _ready() -> void:
 	._ready()
 	has_focus = false
+	visible = false
 
 
 func _input(_event : InputEvent) -> void:
diff --git a/src/UI/TopMenuContainer.gd b/src/UI/TopMenuContainer.gd
index 8352e9e69..8482d8082 100644
--- a/src/UI/TopMenuContainer.gd
+++ b/src/UI/TopMenuContainer.gd
@@ -260,8 +260,13 @@ func toggle_show_guides() -> void:
 	Global.show_guides = !Global.show_guides
 	view_menu.set_item_checked(3, Global.show_guides)
 	for guide in Global.canvas.get_children():
-		if guide is Guide:
+		if guide is Guide and guide in Global.current_project.guides:
 			guide.visible = Global.show_guides
+			if guide is SymmetryGuide:
+				if guide.type == Guide.Types.HORIZONTAL:
+					guide.visible = Global.show_x_symmetry_axis and Global.show_guides
+				else:
+					guide.visible = Global.show_y_symmetry_axis and Global.show_guides
 
 
 func toggle_show_anim_timeline() -> void: