diff --git a/client/package.json b/client/package.json
index 0770dd1df..6a2aea297 100644
--- a/client/package.json
+++ b/client/package.json
@@ -11,7 +11,7 @@
     "post-build": "cp src/404.html dist/client/browser/404.html",
     "watch": "ng build --watch --configuration development",
     "extract-i18n": "ng extract-i18n --format json --output-path src/locales/ --out-file messages.fr.json",
-    "postextract-i18n": "node src/locales/sort-messages-fr-translations.js",
+    "postextract-i18n": "node src/locales/check-messages-translations.js",
     "test": "jest",
     "lint": "ng lint --fix",
     "lint:ci": "ng lint",
diff --git a/client/src/locales/check-messages-translations.js b/client/src/locales/check-messages-translations.js
new file mode 100644
index 000000000..a08a3d9d2
--- /dev/null
+++ b/client/src/locales/check-messages-translations.js
@@ -0,0 +1,57 @@
+const { readFile, writeFile } = require('node:fs/promises');
+const { join } = require('node:path');
+
+const consolidateMessagesTranslations = async (fileName, addKeys = [], removeKeys = []) => {
+  const messagesPath = join(__dirname, fileName);
+  const messages = JSON.parse(await readFile(messagesPath, 'utf8'));
+
+  addKeys.forEach((key) => (messages.translations[key] = ''));
+  removeKeys.forEach((key) => delete messages.translations[key]);
+
+  const sortedTranslationEntries = Object.entries(messages.translations).sort(([a], [b]) =>
+    a > b ? 1 : a < b ? -1 : 0,
+  );
+  messages.translations = sortedTranslationEntries.reduce((translations, [sortedKey, value]) => {
+    translations[sortedKey] = value;
+    return translations;
+  }, {});
+
+  await writeFile(messagesPath, JSON.stringify(messages, undefined, 2) + '\n', 'utf8');
+};
+
+const compareMessagesTranslations = async () => {
+  const frenchMessages = new Set(
+    Object.keys(JSON.parse(await readFile(join(__dirname, 'messages.fr.json'), 'utf8')).translations),
+  );
+  const englishMessages = new Set(
+    Object.keys(JSON.parse(await readFile(join(__dirname, 'messages.en.json'), 'utf8')).translations),
+  );
+
+  const englishMissingKeys = [];
+  frenchMessages.forEach((key) => englishMessages.has(key) || englishMissingKeys.push(key));
+
+  const englishUselessKeys = [];
+  englishMessages.forEach((key) => frenchMessages.has(key) || englishUselessKeys.push(key));
+
+  if (englishMissingKeys.length || englishUselessKeys.length) {
+    console.warn(
+      '\nWarning:\n\tEnglish messages (messages.en.json) not aligned with French messages (messages.fr.json):',
+    );
+    if (englishMissingKeys.length) {
+      console.warn('Missing keys:', englishMissingKeys);
+    }
+    if (englishUselessKeys.length) {
+      console.warn('Useless keys:', englishUselessKeys);
+    }
+  }
+
+  await consolidateMessagesTranslations('messages.en.json', englishMissingKeys, englishUselessKeys);
+};
+
+const run = async () => {
+  await consolidateMessagesTranslations('messages.fr.json');
+
+  await compareMessagesTranslations();
+};
+
+run();
diff --git a/client/src/locales/sort-messages-fr-translations.js b/client/src/locales/sort-messages-fr-translations.js
deleted file mode 100644
index e0a6a1bb0..000000000
--- a/client/src/locales/sort-messages-fr-translations.js
+++ /dev/null
@@ -1,19 +0,0 @@
-const { readFile, writeFile } = require('node:fs/promises');
-const { join } = require('node:path');
-
-const sortMessagesTranslations = async () => {
-  const messagesPath = join(__dirname, 'messages.fr.json');
-  const messages = JSON.parse(await readFile(messagesPath, 'utf8'));
-
-  const sortedTranslationEntries = Object.entries(messages.translations).sort(([a], [b]) =>
-    a > b ? 1 : a < b ? -1 : 0,
-  );
-  messages.translations = sortedTranslationEntries.reduce((translations, [sortedKey, value]) => {
-    translations[sortedKey] = value;
-    return translations;
-  }, {});
-
-  await writeFile(messagesPath, JSON.stringify(messages, undefined, 2) + '\n', 'utf8');
-};
-
-sortMessagesTranslations();