diff --git a/migration.js b/migration.js
new file mode 100644
index 0000000..eec00da
--- /dev/null
+++ b/migration.js
@@ -0,0 +1,26 @@
+module.exports = {
+  transformProfilesFromV1ToV2: function(profiles) {
+    const newProfiles = [];
+    profiles.forEach(profile => {
+      const newProfile = {
+        "site": profile.site,
+        "login": profile.login,
+        "lowercase": profile.lowercase,
+        "uppercase": profile.uppercase,
+        "number": profile.number,
+        "symbol": profile.symbol,
+        "counter": profile.counter,
+        "length": profile.length,
+        "version": profile.version,
+      };
+      if (profile.version === 1) {
+        newProfile.version = 2;
+        if (profile.length === 12) {
+          newProfile.length = 16;
+        }
+      }
+      newProfiles.push(newProfile)
+    });
+    return newProfiles
+  }
+};
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..6058b9c
--- /dev/null
+++ b/package.json
@@ -0,0 +1,22 @@
+{
+  "name": "lesspass-move",
+  "version": "0.1.0",
+  "description": "A tool to change your LessPass passwords",
+  "main": "index.js",
+  "scripts": {
+    "test": "ava"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/lesspass/move.git"
+  },
+  "author": "Guillaume Vincent <guillaume@oslab.fr>",
+  "license": "GPL-3.0",
+  "bugs": {
+    "url": "https://github.com/lesspass/move/issues"
+  },
+  "homepage": "https://github.com/lesspass/move#readme",
+  "devDependencies": {
+    "ava": "^0.19.1"
+  }
+}
diff --git a/test.js b/test.js
new file mode 100644
index 0000000..d8d96aa
--- /dev/null
+++ b/test.js
@@ -0,0 +1,54 @@
+import test from 'ava';
+import migration from './migration'
+
+test('transformProfilesFromV1ToV2', t => {
+  var profiles = [
+    {
+      "site": "example.org",
+      "login": "test@example.org",
+      "lowercase": true,
+      "uppercase": true,
+      "number": true,
+      "symbol": true,
+      "counter": 1,
+      "length": 12,
+      "version": 1
+    },
+    {
+      "site": "bank.example.org",
+      "login": "test@example.org",
+      "lowercase": false,
+      "uppercase": false,
+      "number": true,
+      "symbol": false,
+      "counter": 2,
+      "length": 6,
+      "version": 1
+    }
+  ];
+  var expectedProfiles = [
+    {
+      "site": "example.org",
+      "login": "test@example.org",
+      "lowercase": true,
+      "uppercase": true,
+      "number": true,
+      "symbol": true,
+      "counter": 1,
+      "length": 16,
+      "version": 2
+    },
+    {
+      "site": "bank.example.org",
+      "login": "test@example.org",
+      "lowercase": false,
+      "uppercase": false,
+      "number": true,
+      "symbol": false,
+      "counter": 2,
+      "length": 6,
+      "version": 2
+    }
+  ];
+  t.deepEqual(migration.transformProfilesFromV1ToV2(profiles), expectedProfiles);
+});