diff --git a/app.py b/app.py
index ac674d5..79a3753 100644
--- a/app.py
+++ b/app.py
@@ -7,6 +7,7 @@ from utils import (
     load_config, save_config, load_snippets, save_snippets,
     load_json, save_json, generate_templates, DEFAULTS, ALLOWED_BASE_DIR,
     KEY_BATCH_DATA, KEY_PROMPT_HISTORY, KEY_SEQUENCE_NUMBER,
+    resolve_path_case_insensitive,
 )
 from tab_single import render_single_editor
 from tab_batch import render_batch_processor
@@ -54,8 +55,8 @@ with st.sidebar:
 
     def _on_path_change():
         new_path = st.session_state.nav_path_input
-        p = Path(new_path).resolve()
-        if p.exists() and p.is_dir():
+        p = resolve_path_case_insensitive(new_path)
+        if p is not None and p.is_dir():
             st.session_state.current_dir = p
             st.session_state.config['last_dir'] = str(p)
             save_config(st.session_state.current_dir, st.session_state.config['favorites'])
diff --git a/tests/test_utils.py b/tests/test_utils.py
index b38ad9b..2f3bc6f 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -10,7 +10,7 @@ import sys
 from unittest.mock import MagicMock
 sys.modules.setdefault("streamlit", MagicMock())
 
-from utils import load_json, save_json, get_file_mtime, ALLOWED_BASE_DIR, DEFAULTS
+from utils import load_json, save_json, get_file_mtime, ALLOWED_BASE_DIR, DEFAULTS, resolve_path_case_insensitive
 
 
 def test_load_json_valid(tmp_path):
@@ -66,3 +66,36 @@ def test_get_file_mtime_missing(tmp_path):
 def test_allowed_base_dir_is_set():
     assert ALLOWED_BASE_DIR is not None
     assert isinstance(ALLOWED_BASE_DIR, Path)
+
+
+class TestResolvePathCaseInsensitive:
+    def test_exact_match(self, tmp_path):
+        d = tmp_path / "MyFolder"
+        d.mkdir()
+        result = resolve_path_case_insensitive(str(d))
+        assert result == d.resolve()
+
+    def test_wrong_case_single_component(self, tmp_path):
+        d = tmp_path / "MyFolder"
+        d.mkdir()
+        wrong = tmp_path / "myfolder"
+        result = resolve_path_case_insensitive(str(wrong))
+        assert result == d.resolve()
+
+    def test_wrong_case_nested(self, tmp_path):
+        d = tmp_path / "Parent" / "Child"
+        d.mkdir(parents=True)
+        wrong = tmp_path / "parent" / "CHILD"
+        result = resolve_path_case_insensitive(str(wrong))
+        assert result == d.resolve()
+
+    def test_no_match_returns_none(self, tmp_path):
+        result = resolve_path_case_insensitive(str(tmp_path / "nonexistent"))
+        assert result is None
+
+    def test_file_path(self, tmp_path):
+        f = tmp_path / "Data.json"
+        f.write_text("{}")
+        wrong = tmp_path / "data.JSON"
+        result = resolve_path_case_insensitive(str(wrong))
+        assert result == f.resolve()
diff --git a/utils.py b/utils.py
index 7b07d4f..7140f01 100644
--- a/utils.py
+++ b/utils.py
@@ -60,6 +60,40 @@ SNIPPETS_FILE = Path(".editor_snippets.json")
 # No restriction on directory navigation
 ALLOWED_BASE_DIR = Path("/").resolve()
 
+def resolve_path_case_insensitive(path: str | Path) -> Path | None:
+    """Resolve a path with case-insensitive component matching on Linux.
+
+    Walks each component of the path and matches against actual directory
+    entries when an exact match fails. Returns the corrected Path, or None
+    if no match is found.
+    """
+    p = Path(path)
+    if p.exists():
+        return p.resolve()
+
+    # Start from the root / anchor
+    parts = p.resolve().parts  # resolve to get absolute parts
+    built = Path(parts[0])     # root "/"
+    for component in parts[1:]:
+        candidate = built / component
+        if candidate.exists():
+            built = candidate
+            continue
+        # Case-insensitive scan of the parent directory
+        try:
+            lower = component.lower()
+            match = next(
+                (entry for entry in built.iterdir() if entry.name.lower() == lower),
+                None,
+            )
+        except PermissionError:
+            return None
+        if match is None:
+            return None
+        built = match
+    return built.resolve()
+
+
 def load_config():
     """Loads the main editor configuration (Favorites, Last Dir, Servers)."""
     if CONFIG_FILE.exists():