diff --git a/config_convert/converters/toml_converter.py b/config_convert/converters/toml_converter.py
new file mode 100644
index 0000000..fccc7e7
--- /dev/null
+++ b/config_convert/converters/toml_converter.py
@@ -0,0 +1,63 @@
+"""TOML format converter using tomli/tomllib."""
+
+import sys
+from pathlib import Path
+from typing import Any, Dict, Optional
+
+from config_convert.converters.base import Converter
+
+if sys.version_info >= (3, 11):
+    import tomllib
+else:
+    import tomli as tomllib
+
+
+class TOMLConverter(Converter):
+    """Converter for TOML format."""
+
+    @property
+    def name(self) -> str:
+        return "toml"
+
+    def loads(self, data: str) -> Dict[str, Any]:
+        return tomllib.loads(data)
+
+    def dumps(self, data: Dict[str, Any], indent: Optional[int] = None) -> str:
+        output = []
+        self._write_dict(data, output, indent=0)
+        return "\n".join(output)
+
+    def _write_dict(self, data: Dict[str, Any], output: list, indent: int) -> None:
+        for key, value in data.items():
+            if isinstance(value, dict):
+                output.append(f"[{key}]")
+                self._write_dict(value, output, indent + 1)
+            elif isinstance(value, list):
+                if len(value) > 0 and isinstance(value[0], dict):
+                    for item in value:
+                        output.append(f"[[{key}]]")
+                        self._write_dict(item, output, indent + 1)
+                else:
+                    items_str = ", ".join(self._format_value(item) for item in value)
+                    output.append(f"{key} = [{items_str}]")
+            else:
+                output.append(f"{key} = {self._format_value(value)}")
+
+    def _format_value(self, value: Any) -> str:
+        if isinstance(value, bool):
+            return "true" if value else "false"
+        elif isinstance(value, str):
+            return f'"{value}"'
+        elif value is None:
+            return ""
+        else:
+            return str(value)
+
+    def load(self, file_path: str) -> Dict[str, Any]:
+        with open(file_path, "rb") as f:
+            return tomllib.load(f)
+
+    def dump(self, data: Dict[str, Any], file_path: str, indent: Optional[int] = None) -> None:
+        Path(file_path).parent.mkdir(parents=True, exist_ok=True)
+        with open(file_path, "wb") as f:
+            f.write(self.dumps(data).encode("utf-8"))