diff --git a/README.md b/README.md
index 74aeb9b..56e4525 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ pip install .
 ## Usage
 
 ```bash
-cmm [-h] [-p PRINT | -q QUESTION | -D | -d] [-c CONFIG] [-m MAX_TOKENS] [-T TEMPERATURE] [-M MODEL] [-n NUMBER] [-t [TAGS [TAGS ...]]] [-e [EXTAGS [EXTAGS ...]]] [-o [OTAGS [OTAGS ...]]] [-w] [-W]
+cmm [-h] [-p PRINT | -q QUESTION | -D | -d | -l] [-c CONFIG] [-m MAX_TOKENS] [-T TEMPERATURE] [-M MODEL] [-n NUMBER] [-t [TAGS [TAGS ...]]] [-e [EXTAGS [EXTAGS ...]]] [-o [OTAGS [OTAGS ...]]] [-w] [-W]
 ```
 
 ### Arguments
@@ -39,6 +39,7 @@ cmm [-h] [-p PRINT | -q QUESTION | -D | -d] [-c CONFIG] [-m MAX_TOKENS] [-T TEMP
 - `-d`, `--chat`: Print chat history as readable text.
 - `-w`, `--with-tags`: Print chat history with tags.
 - `-W`, `--with-tags`: Print chat history with filenames.
+- `-l`, `--list-tags`: List all tags and their frequency.
 - `-c`, `--config`: Config file name (defaults to `.config.yaml`).
 - `-m`, `--max-tokens`: Max tokens to use.
 - `-T`, `--temperature`: Temperature to use.
diff --git a/chatmastermind/main.py b/chatmastermind/main.py
index 9828399..5dad76a 100755
--- a/chatmastermind/main.py
+++ b/chatmastermind/main.py
@@ -7,8 +7,8 @@ import sys
 import argcomplete
 import argparse
 import pathlib
-from .utils import terminal_width, process_tags, display_chat, display_source_code
-from .storage import save_answers, create_chat, get_tags, read_file, dump_data
+from .utils import terminal_width, process_tags, display_chat, display_source_code, display_tags_frequency
+from .storage import save_answers, create_chat, get_tags, get_tags_unique, read_file, dump_data
 from .api_client import ai, openai_api_key
 from itertools import zip_longest
 
@@ -60,6 +60,12 @@ def process_and_display_chat(args: argparse.Namespace,
     display_chat(chat, dump, args.only_source_code)
     return chat, full_question, tags
 
+def process_and_display_tags(args: argparse.Namespace,
+                             config: dict,
+                             dump: bool=False
+                             ) -> None:
+    display_tags_frequency(get_tags(config, None), dump)
+
 
 def handle_question(args: argparse.Namespace,
                     config: dict,
@@ -76,7 +82,7 @@ def handle_question(args: argparse.Namespace,
 def tags_completer(prefix, parsed_args, **kwargs):
     with open(parsed_args.config, 'r') as f:
         config = yaml.load(f, Loader=yaml.FullLoader)
-    return get_tags(config, prefix)
+    return get_tags_unique(config, prefix)
 
 
 def create_parser() -> argparse.ArgumentParser:
@@ -88,6 +94,7 @@ def create_parser() -> argparse.ArgumentParser:
     group.add_argument('-q', '--question', nargs='*', help='Question to ask')
     group.add_argument('-D', '--chat-dump', help="Print chat history as Python structure", action='store_true')
     group.add_argument('-d', '--chat', help="Print chat history as readable text", action='store_true')
+    group.add_argument('-l', '--list-tags', help="List all tags and their frequency", action='store_true')
     parser.add_argument('-c', '--config', help='Config file name.', default=default_config)
     parser.add_argument('-m', '--max-tokens', help='Max tokens to use', type=int)
     parser.add_argument('-T', '--temperature', help='Temperature to use', type=float)
@@ -133,6 +140,8 @@ def main() -> int:
         process_and_display_chat(args, config, dump=True)
     elif args.chat:
         process_and_display_chat(args, config)
+    elif args.list_tags:
+        process_and_display_tags(args, config)
 
     return 0
 
diff --git a/chatmastermind/storage.py b/chatmastermind/storage.py
index 7418edf..0839d61 100644
--- a/chatmastermind/storage.py
+++ b/chatmastermind/storage.py
@@ -105,4 +105,7 @@ def get_tags(config: Dict[str, Any], prefix: Optional[str]) -> List[str]:
                     result.append(tag)
             else:
                 result.append(tag)
-    return list(set(result))
+    return result
+
+def get_tags_unique(config: Dict[str, Any], prefix: Optional[str]) -> List[str]:
+    return list(set(get_tags(config, prefix)))
diff --git a/chatmastermind/utils.py b/chatmastermind/utils.py
index ef876e8..2dceb69 100644
--- a/chatmastermind/utils.py
+++ b/chatmastermind/utils.py
@@ -73,3 +73,10 @@ def display_chat(chat, dump=False, source_code=False) -> None:
             print(message['content'])
         else:
             print(f"{message['role'].upper()}: {message['content']}")
+
+def display_tags_frequency(tags: List[str], dump=False) -> None:
+    if dump:
+        pp(tags)
+        return
+    for tag in set(tags):
+        print(f"-{tag} : {tags.count(tag)}")