diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 000000000000..f6a54e4dd2c5
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,18 @@
+# http://editorconfig.org
+
+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[dropdown-toggle.js]
+trim_trailing_whitespace = false
+insert_final_newline = false
+
+[htmlparser.js]
+insert_final_newline = false