diff --git a/.gitignore b/.gitignore
index 4f7041d..041e35c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,6 @@
 node_modules
 package-lock.json
 
+# Image Node data
+users.json
+
diff --git a/app.js b/app.js
index 4aabb95..080754f 100644
--- a/app.js
+++ b/app.js
@@ -1,7 +1,33 @@
 let express = require("express");
-let morgan = require("morgan")
+let morgan = require("morgan");
+let fs = require("fs");
+let rl = require("readline").createInterface({input: process.stdin, output: process.stdout, terminal: false});
+let passwordHash = require('password-hash');
 let app = express();
 
+
+if (!fs.existsSync("users.json")) {
+	fs.writeFileSync("users.json", "{}");
+	console.log("Register first user");
+	addUser();
+} else if (Object.keys(JSON.parse(fs.readFileSync("users.json"))).length === 0) {
+	console.log("No user found, adding a new one");
+	addUser();
+}
+
+async function addUser() {
+	let username;
+	let password;
+	file = JSON.parse(fs.readFileSync("users.json"));
+	do {
+		username = await new Promise(resolve => rl.question("Username: ", resolve));
+	} while (username in file || ["", null].indexOf(username) >= 0);
+	password = passwordHash.generate(await new Promise(resolve => rl.question("Password: ", resolve)));
+	file[username] = password;
+	fs.writeFileSync("users.json", JSON.stringify(file));
+}
+
+
 app.use(morgan("dev"))
 .use(express.static("public"))
 .set("view engine", "pug")
diff --git a/package.json b/package.json
index 11565d5..c69201f 100644
--- a/package.json
+++ b/package.json
@@ -6,6 +6,7 @@
   "dependencies": {
     "express": "^4.17.1",
     "morgan": "^1.10.0",
+    "password-hash": "^1.2.2",
     "pug": "^2.0.4"
   },
   "author": "flifloo"