diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 00000000..1cf1a2ea
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,6 @@
+**/*.min.*
+/sipa/static/js/*.js
+!agdsn.js
+/sipa/static/css/*.css
+!style.css
+/sipa/templates/base.html
diff --git a/.prettierrc b/.prettierrc
new file mode 100644
index 00000000..ea80df52
--- /dev/null
+++ b/.prettierrc
@@ -0,0 +1,11 @@
+{
+  "plugins": ["prettier-plugin-jinja-template"],
+  "overrides": [
+    {
+      "files": ["*.html"],
+      "options": {
+        "parser": "jinja-template"
+      }
+    }
+  ]
+}
diff --git a/package.json b/package.json
new file mode 100644
index 00000000..246920ce
--- /dev/null
+++ b/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "sipa",
+  "version": "1.1.0",
+  "description": "AG DSN website",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/agdsn/sipa.git"
+  },
+  "author": "AG DSN authors",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/agdsn/sipa/issues"
+  },
+  "homepage": "https://github.com/agdsn/sipa#readme",
+  "devDependencies": {
+    "eslint": "^8.35.0",
+    "prettier": "^3.0.3",
+    "prettier-plugin-jinja-template": "^1.1.0"
+  }
+}