diff --git a/esphome/platformio/library.py b/esphome/platformio/library.py
index 771570f872..ccc4c3d36c 100644
--- a/esphome/platformio/library.py
+++ b/esphome/platformio/library.py
@@ -459,7 +459,7 @@ def check_library_data(data: dict, platform: str | None, framework: str):
         )
 
 
-def _parse_library_json(library_json_path: PathType):
+def parse_library_json(library_json_path: PathType):
     """
     Load and parse a JSON file describing a library.
 
@@ -876,7 +876,7 @@ def convert_libraries(
             has_json = library_json_path.is_file()
             has_properties = library_properties_path.is_file()
         if has_json:
-            component.data = _parse_library_json(library_json_path)
+            component.data = parse_library_json(library_json_path)
         elif has_properties:
             component.data = parse_library_properties(library_properties_path)
         else:
diff --git a/tests/unit_tests/test_espidf_component.py b/tests/unit_tests/test_espidf_component.py
index c4a910be23..b17136aa15 100644
--- a/tests/unit_tests/test_espidf_component.py
+++ b/tests/unit_tests/test_espidf_component.py
@@ -25,10 +25,10 @@ from esphome.platformio.library import (
     GitSource,
     URLSource,
     _node_key,
-    _parse_library_json,
     _resolve_registry_version,
     collect_filtered_files,
     normalize_dependencies,
+    parse_library_json,
     parse_library_properties,
     split_list_by_condition,
 )
@@ -368,11 +368,11 @@ def test_generate_idf_component_yml_missing_path_raises(tmp_component):
         generate_idf_component_yml(tmp_component)
 
 
-def test_parse_library_json(tmp_path):
+def testparse_library_json(tmp_path):
     f = tmp_path / "library.json"
     f.write_text(json.dumps({"name": "test"}))
 
-    result = _parse_library_json(f)
+    result = parse_library_json(f)
     assert result["name"] == "test"