diff --git a/src/habitmove/nomie_parser.py b/src/habitmove/nomie_parser.py
new file mode 100644
index 0000000..efa02d2
--- /dev/null
+++ b/src/habitmove/nomie_parser.py
@@ -0,0 +1,10 @@
+from __future__ import annotations
+from json import loads as jsonloads
+
+from habitmove.parser import Parser
+
+
+class NomieParser(Parser):
+    def __init__(self, data="{}") -> None:
+        """Load a data set and prepare parser data"""
+        self.data = jsonloads(data)
diff --git a/src/habitmove/parser.py b/src/habitmove/parser.py
index 61141dd..008ac94 100644
--- a/src/habitmove/parser.py
+++ b/src/habitmove/parser.py
@@ -1,11 +1,22 @@
 from __future__ import annotations
+from pathlib import Path
 
 from habitmove.nomiedata import Event, ImportData, Tracker
 
 
 class Parser:
-    def parse(self, path: str, filename: str) -> ImportData:
+    def __init__(self, data="") -> None:
+        """Load a data set and prepare parser data"""
+        self.data = data
+
+    @classmethod
+    def from_file(cls, path: str) -> Parser:
         """Load in a data set"""
+        txt = Path(path).read_text()
+        return cls(data=txt)
+
+    def parse(self) -> ImportData:
+        """Extract all data from a data set"""
         raise NotImplementedError
 
     def extract_version(self) -> str:
@@ -19,7 +30,3 @@ class Parser:
     def extract_events(self) -> list[Event]:
         """Extract events from the data set"""
         raise NotImplementedError
-
-
-class NomieParser(Parser):
-    pass
diff --git a/tests/test_nomie_parser.py b/tests/test_nomie_parser.py
new file mode 100644
index 0000000..0ae6fd3
--- /dev/null
+++ b/tests/test_nomie_parser.py
@@ -0,0 +1,18 @@
+from habitmove.nomie_parser import NomieParser
+import json
+import pytest
+
+
+def test_nomie_parser_exists():
+    sut = NomieParser()
+    assert type(sut) == NomieParser
+
+
+def test_nomie_Parser_errors_on_invalid_data():
+    with pytest.raises(json.decoder.JSONDecodeError):
+        NomieParser(data="invalid_test_data")
+
+
+def test_nomie_Parser_saves_data():
+    sut = NomieParser(data='{"test": "entry"}')
+    assert sut.data == {"test": "entry"}
diff --git a/tests/test_parser.py b/tests/test_parser.py
index a9f52b2..3356025 100644
--- a/tests/test_parser.py
+++ b/tests/test_parser.py
@@ -1,4 +1,4 @@
-from habitmove.parser import Parser, NomieParser
+from habitmove.parser import Parser
 from inspect import signature
 
 
@@ -10,14 +10,14 @@ def test_parser_interface_exists():
 def test_parser_interface_contains_methods():
     sut = Parser()
     assert sut.__getattribute__("parse") != None
-    assert sut.__getattribute__("load_file") != None
+    assert sut.__getattribute__("from_file") != None
     assert sut.__getattribute__("extract_version") != None
     assert sut.__getattribute__("extract_trackers") != None
     assert sut.__getattribute__("extract_events") != None
 
 
-def test_parser_load_file_returns_parser():
-    sut = Parser().load_file
+def test_parser_from_file_returns_parser():
+    sut = Parser().from_file
     assert signature(sut).return_annotation == "Parser"
 
 
@@ -39,8 +39,3 @@ def test_parser_extract_trackers_returns_tracker_list():
 def test_parser_extract_events_returns_event_list():
     sut = Parser().extract_events
     assert signature(sut).return_annotation == "list[Event]"
-
-
-def test_nomie_parser_exists():
-    sut = NomieParser()
-    assert type(sut) == NomieParser