diff --git a/.npmignore b/.npmignore
new file mode 100644
index 0000000..99d7d6a
--- /dev/null
+++ b/.npmignore
@@ -0,0 +1,6 @@
+# ignore all files in the test/ directory
+test/
+
+# ignore ESLint and EditorConfig
+.editorconfig
+.eslintrc.json