diff --git a/cleaner.lua b/cleaner.lua
new file mode 100644
index 0000000..828c97d
--- /dev/null
+++ b/cleaner.lua
@@ -0,0 +1,4 @@
+
+beerchat.register_callback('on_receive', function(msg_data)
+	msg_data.message = msg_data.message:gsub('%c','')
+end)
diff --git a/hash.lua b/hash.lua
index 06139dc..1ce4142 100644
--- a/hash.lua
+++ b/hash.lua
@@ -4,6 +4,13 @@
 hashchat_lastrecv = {}
 
 minetest.register_on_chat_message(function(name, message)
+	local msg_data = {name=name,message=message}
+	if beerchat.execute_callbacks('on_receive', msg_data) then
+		message = msg_data.message
+	else
+		return false
+	end
+
 	local channel_name, msg = string.match(message, "^#(.-): (.*)")
 	if not beerchat.channels[channel_name] then
 		channel_name, msg = string.match(message, "^#(.-) (.*)")
diff --git a/hooks.lua b/hooks.lua
index d6c3c8b..15dd964 100644
--- a/hooks.lua
+++ b/hooks.lua
@@ -13,6 +13,9 @@ beerchat.cb.before_mute 		= {} -- executed before player is muted
 beerchat.cb.before_check_muted 	= {} -- executed before has_player_muted_player checks
 beerchat.cb.on_forced_join 		= {} -- executed right after player is forced to channel
 
+-- Callbacks that can edit message contents
+beerchat.cb.on_receive 			= {} -- executed when new message is received
+
 beerchat.register_callback = function(trigger, fn)
 	if type(fn) ~= 'function' then
 		print('Error: Invalid fn argument for beerchat.register_callback, must be function. Got ' .. type(fn))
diff --git a/init.lua b/init.lua
index 96e4e08..6081776 100644
--- a/init.lua
+++ b/init.lua
@@ -79,6 +79,10 @@ if minetest.settings:get_bool("beerchat.enable_jail") then
 	dofile(MP.."/jail.lua")
 end
 
+if minetest.settings:get_bool("beerchat.enable_cleaner") then
+	dofile(MP.."/cleaner.lua")
+end
+
 if minetest.settings:get_bool("enable_beerchat_integration_test") then
   dofile(MP.."/integration_test.lua")
 end