diff --git a/.npmignore b/.npmignore
new file mode 100644
index 0000000000000000000000000000000000000000..d32d6ac9e651e3c2b967d046e80913b843ad5959
--- /dev/null
+++ b/.npmignore
@@ -0,0 +1,14 @@
+tmp
+graphviz
+build
+.vscode
+grep
+Makefile
+commit
+debug_test
+run_testjs
+parse_spip_log
+jalhyd_class_diagram.png
+.npmignore
+.editorconfig
+src/test.ts