diff --git a/app.js b/app.js
index 9526b47..b062d04 100644
--- a/app.js
+++ b/app.js
@@ -3,6 +3,7 @@ let path = require("path");
 let cookieParser = require("cookie-parser");
 let session = require("express-session");
 let logger = require("morgan");
+let { I18n } = require("i18n");
 
 let indexRouter = require("./routes/index");
 let registerRouter = require("./routes/register");
@@ -20,6 +21,13 @@ let sess = {
   secret: process.env.NODE_ENV === "test" ? "Keyboard Cat" : require("./config/config.json").secret,
   cookie: {}
 };
+let i18n = new I18n({
+  locales: ["fr", "en"],
+  defaultLocale: "fr",
+  cookie: "locale",
+  directory: __dirname + "/locales",
+  objectNotation: true
+});
 
 if (app.get("env") === "production") {
   app.set("trust proxy", 1);
@@ -36,6 +44,7 @@ app.use(express.urlencoded({ extended: false }));
 app.use(cookieParser());
 app.use(session(sess));
 app.use(express.static(path.join(__dirname, "public")));
+app.use(i18n.init);
 
 app.use("/", indexRouter);
 app.use("/register", registerRouter);
diff --git a/package-lock.json b/package-lock.json
index b57edf1..51d432d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1279,6 +1279,26 @@
         "sshpk": "^1.7.0"
       }
     },
+    "i18n": {
+      "version": "0.12.0",
+      "resolved": "https://registry.npmjs.org/i18n/-/i18n-0.12.0.tgz",
+      "integrity": "sha512-PAxVHNs/hCB/RXNWvImbmUxkKsaUfFLxA6TJiDPVHvzPRueJEVDTGnWeSuxQylhGGmYhFWEj/mGeumaQenUfsg==",
+      "requires": {
+        "debug": "*",
+        "make-plural": "^6.2.1",
+        "math-interval-parser": "^2.0.1",
+        "messageformat": "^2.3.0",
+        "mustache": "^4.0.1",
+        "sprintf-js": "^1.1.2"
+      },
+      "dependencies": {
+        "sprintf-js": {
+          "version": "1.1.2",
+          "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.1.2.tgz",
+          "integrity": "sha512-VE0SOVEHCk7Qc8ulkWw3ntAzXuqf7S2lvwQaDLRnUeIEaKNQJzV6BwmLKhOqT61aGhfUMrXeaBk+oDGCzvhcug=="
+        }
+      }
+    },
     "iconv-lite": {
       "version": "0.4.23",
       "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.23.tgz",
@@ -1630,6 +1650,16 @@
         "es5-ext": "~0.10.2"
       }
     },
+    "make-plural": {
+      "version": "6.2.2",
+      "resolved": "https://registry.npmjs.org/make-plural/-/make-plural-6.2.2.tgz",
+      "integrity": "sha512-8iTuFioatnTTmb/YJjywkVIHLjcwkFD9Ms0JpxjEm9Mo8eQYkh1z+55dwv4yc1jQ8ftVBxWQbihvZL1DfzGGWA=="
+    },
+    "math-interval-parser": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/math-interval-parser/-/math-interval-parser-2.0.1.tgz",
+      "integrity": "sha512-VmlAmb0UJwlvMyx8iPhXUDnVW1F9IrGEd9CIOmv+XL8AErCUUuozoDMrgImvnYt2A+53qVX/tPW6YJurMKYsvA=="
+    },
     "media-typer": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
@@ -1655,6 +1685,36 @@
       "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-1.0.1.tgz",
       "integrity": "sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E="
     },
+    "messageformat": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/messageformat/-/messageformat-2.3.0.tgz",
+      "integrity": "sha512-uTzvsv0lTeQxYI2y1NPa1lItL5VRI8Gb93Y2K2ue5gBPyrbJxfDi/EYWxh2PKv5yO42AJeeqblS9MJSh/IEk4w==",
+      "requires": {
+        "make-plural": "^4.3.0",
+        "messageformat-formatters": "^2.0.1",
+        "messageformat-parser": "^4.1.2"
+      },
+      "dependencies": {
+        "make-plural": {
+          "version": "4.3.0",
+          "resolved": "https://registry.npmjs.org/make-plural/-/make-plural-4.3.0.tgz",
+          "integrity": "sha512-xTYd4JVHpSCW+aqDof6w/MebaMVNTVYBZhbB/vi513xXdiPT92JMVCo0Jq8W2UZnzYRFeVbQiQ+I25l13JuKvA==",
+          "requires": {
+            "minimist": "^1.2.0"
+          }
+        }
+      }
+    },
+    "messageformat-formatters": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/messageformat-formatters/-/messageformat-formatters-2.0.1.tgz",
+      "integrity": "sha512-E/lQRXhtHwGuiQjI7qxkLp8AHbMD5r2217XNe/SREbBlSawe0lOqsFb7rflZJmlQFSULNLIqlcjjsCPlB3m3Mg=="
+    },
+    "messageformat-parser": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/messageformat-parser/-/messageformat-parser-4.1.3.tgz",
+      "integrity": "sha512-2fU3XDCanRqeOCkn7R5zW5VQHWf+T3hH65SzuqRvjatBK7r4uyFa5mEX+k6F9Bd04LVM5G4/BHBTUJsOdW7uyg=="
+    },
     "methods": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/methods/-/methods-1.1.2.tgz",
@@ -1689,8 +1749,7 @@
     "minimist": {
       "version": "1.2.5",
       "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
-      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==",
-      "dev": true
+      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw=="
     },
     "minipass": {
       "version": "2.9.0",
@@ -1903,6 +1962,11 @@
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
       "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
     },
+    "mustache": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/mustache/-/mustache-4.0.1.tgz",
+      "integrity": "sha512-yL5VE97+OXn4+Er3THSmTdCFCtx5hHWzrolvH+JObZnUYwuaG7XV+Ch4fR2cIrcYI0tFHxS7iyFYl14bW8y2sA=="
+    },
     "needle": {
       "version": "2.5.0",
       "resolved": "https://registry.npmjs.org/needle/-/needle-2.5.0.tgz",
diff --git a/package.json b/package.json
index 0205616..a85eb01 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,7 @@
     "express": "~4.16.1",
     "express-session": "^1.17.1",
     "http-errors": "~1.6.3",
+    "i18n": "^0.12.0",
     "morgan": "~1.9.1",
     "pg": "^8.3.0",
     "pg-hstore": "^2.3.3",