diff --git a/main.py b/main.py
new file mode 100644
index 0000000..31efadd
--- /dev/null
+++ b/main.py
@@ -0,0 +1,37 @@
+#!/usr/bin/env python3
+"""
+Simple utility to convert a raw text file into a flat JSON card.
+The input format is assumed to be a plain text where each line contains a key and value separated by a colon.
+Example:
+    title: My Card
+    description: This is a test.
+    tags: python, example
+
+The output will be a JSON object with the extracted fields.
+"""
+import json
+import argparse
+from pathlib import Path
+
+def parse_raw_text(text: str) -> dict:
+    card = {}
+    for line in text.splitlines():
+        if not line.strip() or ':' not in line:
+            continue
+        key, value = line.split(':', 1)
+        card[key.strip()] = value.strip()
+    return card
+
+def main():
+    parser = argparse.ArgumentParser(description="Convert raw text to flat JSON card")
+    parser.add_argument("input", type=Path, help="Input raw text file")
+    parser.add_argument("output", type=Path, help="Output JSON file")
+    args = parser.parse_args()
+
+    input_text = args.input.read_text(encoding='utf-8')
+    card = parse_raw_text(input_text)
+    args.output.write_text(json.dumps(card, ensure_ascii=False, indent=2), encoding='utf-8')
+    print(f"Card written to {args.output}")
+
+if __name__ == "__main__":
+    main()