diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000000..7ccda44a24
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,14 @@
+# Normalize line endings to LF
+*.sh     text eol=lf
+*.expect text eol=lf
+*.py     text eol=lf
+*.yml    text eol=lf
+*.yaml   text eol=lf
+*.md     text eol=lf
+
+# Binary files — never touch line endings
+*.png    binary
+*.jpg    binary
+*.gif    binary
+*.ico    binary
+*.pdf    binary
\ No newline at end of file