diff --git a/abogen/domain/normalization.py b/abogen/domain/normalization.py
new file mode 100644
index 0000000..4bd34fd
--- /dev/null
+++ b/abogen/domain/normalization.py
@@ -0,0 +1,30 @@
+"""Text normalization convenience helpers."""
+
+from __future__ import annotations
+
+from typing import Any, Mapping, Optional
+
+from abogen.kokoro_text_normalization import (
+    ApostropheConfig,
+    normalize_for_pipeline as _normalize_for_pipeline,
+)
+from abogen.normalization_settings import (
+    build_apostrophe_config,
+    get_runtime_settings,
+    apply_overrides as _apply_overrides,
+)
+
+_BASE_APOSTROPHE_CONFIG = ApostropheConfig()
+
+
+def normalize_text_for_pipeline(
+    text: str,
+    *,
+    normalization_overrides: Optional[Mapping[str, Any]] = None,
+) -> str:
+    """Normalize text using runtime settings with optional overrides."""
+    runtime_settings = get_runtime_settings()
+    if normalization_overrides:
+        runtime_settings = _apply_overrides(runtime_settings, normalization_overrides)
+    apostrophe_config = build_apostrophe_config(settings=runtime_settings, base=_BASE_APOSTROPHE_CONFIG)
+    return _normalize_for_pipeline(text, config=apostrophe_config, settings=runtime_settings)
diff --git a/abogen/webui/conversion_runner.py b/abogen/webui/conversion_runner.py
index 9cc008f..5b19954 100644
--- a/abogen/webui/conversion_runner.py
+++ b/abogen/webui/conversion_runner.py
@@ -139,20 +139,6 @@ class AudioSink:
 _APOSTROPHE_CONFIG = ApostropheConfig()
 
 
-def _normalize_for_pipeline(
-    text: str,
-    *,
-    normalization_overrides: Optional[Mapping[str, Any]] = None,
-) -> str:
-    """Normalize text for tests or utilities with optional overrides."""
-
-    runtime_settings = get_runtime_settings()
-    if normalization_overrides:
-        runtime_settings = apply_normalization_overrides(runtime_settings, normalization_overrides)
-    apostrophe_config = build_apostrophe_config(settings=runtime_settings, base=_APOSTROPHE_CONFIG)
-    return normalize_for_pipeline(text, config=apostrophe_config, settings=runtime_settings)
-
-
 def _apply_m4b_chapters_with_mutagen(
     audio_path: Path,
     chapters: List[Dict[str, Any]],
diff --git a/tests/test_chapter_merge_normalize.py b/tests/test_chapter_merge_normalize.py
index 89054a8..9bfda73 100644
--- a/tests/test_chapter_merge_normalize.py
+++ b/tests/test_chapter_merge_normalize.py
@@ -148,20 +148,20 @@ class TestNormalizeForPipeline:
     """normalize_for_pipeline normalizes text with runtime settings."""
 
     def test_basic_normalize(self):
-        from abogen.webui.conversion_runner import _normalize_for_pipeline
+        from abogen.domain.normalization import normalize_text_for_pipeline
 
-        result = _normalize_for_pipeline("Hello   World")
+        result = normalize_text_for_pipeline("Hello   World")
         assert isinstance(result, str)
         assert len(result) > 0
 
     def test_empty_string(self):
-        from abogen.webui.conversion_runner import _normalize_for_pipeline
+        from abogen.domain.normalization import normalize_text_for_pipeline
 
-        result = _normalize_for_pipeline("")
+        result = normalize_text_for_pipeline("")
         assert result == ""
 
     def test_with_overrides(self):
-        from abogen.webui.conversion_runner import _normalize_for_pipeline
+        from abogen.domain.normalization import normalize_text_for_pipeline
 
-        result = _normalize_for_pipeline("test", normalization_overrides={"number_format": "words"})
+        result = normalize_text_for_pipeline("test", normalization_overrides={"number_format": "words"})
         assert isinstance(result, str)