diff --git a/web/gui2-topo-lib/.editorconfig b/web/gui2-topo-lib/.editorconfig
new file mode 100644
index 0000000..9b73521
--- /dev/null
+++ b/web/gui2-topo-lib/.editorconfig
@@ -0,0 +1,13 @@
+# Editor configuration, see http://editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 4
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+max_line_length = off
+trim_trailing_whitespace = false