diff --git a/output_sanitizing_filter.py b/output_sanitizing_filter.py
new file mode 100644
index 0000000..2697990
--- /dev/null
+++ b/output_sanitizing_filter.py
@@ -0,0 +1,58 @@
+"""
+title: Output Sanitization Filter
+author: projectmoon
+author_url: https://git.agnos.is/projectmoon/open-webui-filters
+version: 0.1.0
+required_open_webui_version: 0.3.9
+"""
+
+# Documentation: https://git.agnos.is/projectmoon/open-webui-filters
+
+import re
+from typing import Callable, Awaitable, Any, Optional, Literal, List
+from pydantic import BaseModel, Field
+
+def strip_prefixes(message: str, prefixes: List[str]):
+    for prefix in prefixes:
+        if message.startswith(prefix):
+            message = message.replace(prefix, "", 1)
+    return message
+
+class Filter:
+    class Valves(BaseModel):
+        start_removals: List[str] = Field(
+            default=[":"], description="Words or terms to remove from the start of LLM replies."
+        )
+
+        pass
+
+    def __init__(self):
+        self.valves = self.Valves()
+        pass
+
+    async def replace_message(self, message):
+        await self.event_emitter({
+            "type": "replace",
+            "data": {
+                "content": message
+            }
+        })
+
+
+    async def outlet(
+        self,
+        body: dict,
+        __user__: dict,
+        __event_emitter__: Callable[[Any], Awaitable[None]],
+        __model__: Optional[dict] = None,
+    ) -> dict:
+        """Remove words from the start and end of LLM replies."""
+        self.event_emitter = __event_emitter__
+
+        if len(body["messages"]) == 0:
+            return body
+
+        last_reply: dict = body["messages"][-1]
+        last_reply = last_reply["content"].strip()
+        replaced_message = strip_prefixes(last_reply, self.valves.start_removals)
+        await self.replace_message(replaced_message)