diff --git a/.gitignore b/.gitignore
index bdaa9de5..4590c9a0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,9 +3,10 @@ composer.phar
 html/ad*
 html/analytics*
 import/
+node_modules/
 php/config.php
 php/secrets.php
 vendor/*
 *.pyc
 .idea
-.DS_Store
\ No newline at end of file
+.DS_Store
diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 00000000..7bbfdde3
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,9 @@
+# Ignore artifacts:
+build
+coverage
+vendor
+composer.json
+composer.lock
+*.html
+*.min.css
+*.min.js
diff --git a/.prettierrc.json b/.prettierrc.json
new file mode 100644
index 00000000..0967ef42
--- /dev/null
+++ b/.prettierrc.json
@@ -0,0 +1 @@
+{}
diff --git a/INSTALL b/INSTALL
index 6bf35363..4cce9c3c 100644
--- a/INSTALL
+++ b/INSTALL
@@ -37,6 +37,10 @@ sudo certbot --nginx -d [YOUR_DOMAIN]
 curl -sS https://getcomposer.org/installer | sudo php -- --install-dir=/usr/local/bin --filename=composer
 sudo -u openflights php /usr/local/bin/composer install
 
+# Set up npm packages if you're going to be developing OpenFlights
+sudo apt-get install npm
+sudo -u openflights npm install
+
 # Generates locales for language support
 cd openflights
 find locale -name *utf8 -printf '%f ' | xargs sudo locale-gen
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 00000000..43fc365b
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,35 @@
+{
+  "name": "openflights",
+  "lockfileVersion": 2,
+  "requires": true,
+  "packages": {
+    "": {
+      "devDependencies": {
+        "prettier": "^2.8.8"
+      }
+    },
+    "node_modules/prettier": {
+      "version": "2.8.8",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.8.8.tgz",
+      "integrity": "sha512-tdN8qQGvNjw4CHbY+XXk0JgCXn9QiF21a55rBe5LJAU+kDyC4WQn4+awm2Xfk2lQMk5fKup9XgzTZtGkjBdP9Q==",
+      "dev": true,
+      "bin": {
+        "prettier": "bin-prettier.js"
+      },
+      "engines": {
+        "node": ">=10.13.0"
+      },
+      "funding": {
+        "url": "https://github.com/prettier/prettier?sponsor=1"
+      }
+    }
+  },
+  "dependencies": {
+    "prettier": {
+      "version": "2.8.8",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.8.8.tgz",
+      "integrity": "sha512-tdN8qQGvNjw4CHbY+XXk0JgCXn9QiF21a55rBe5LJAU+kDyC4WQn4+awm2Xfk2lQMk5fKup9XgzTZtGkjBdP9Q==",
+      "dev": true
+    }
+  }
+}
diff --git a/package.json b/package.json
new file mode 100644
index 00000000..f46dcc7c
--- /dev/null
+++ b/package.json
@@ -0,0 +1,9 @@
+{
+  "devDependencies": {
+    "prettier": "^2.8.8"
+  },
+  "scripts": {
+    "lint": "prettier --check .",
+    "fix": "prettier --write ."
+  }
+}