diff --git a/README.md b/README.md
index bb05110..80286ae 100644
--- a/README.md
+++ b/README.md
@@ -204,6 +204,7 @@ Arguments passed to the process or set via environment variables are split into
 | --disable-web-ui              | Disable web ui                                                                                              | `Web Ui enabled`                   | LT_DISABLE_WEB_UI              |
 | --update-models               | Update language models at startup                                                                           | `Only on if no models found`       | LT_UPDATE_MODELS               |
 | --metrics                     | Enable the /metrics endpoint for exporting [Prometheus](https://prometheus.io/) usage metrics               | `Disabled`                         | LT_METRICS                     |
+| --hide-api                    | Hide the API request/response section in the web UI                                                         | `Disabled`                         | LT_HIDE_API                    |
 
 ### Configuration Parameters
 
@@ -219,6 +220,7 @@ Arguments passed to the process or set via environment variables are split into
 | --ga-id                    | Enable Google Analytics on the API client page by providing an ID                                                                                                                                           | `Empty (no tracking)`                 | LT_GA_ID                    |
 | --frontend-language-source | Set frontend default language - source                                                                                                                                                                      | `auto`                                | LT_FRONTEND_LANGUAGE_SOURCE |
 | --frontend-language-target | Set frontend default language - target                                                                                                                                                                      | `locale` (match site's locale)        | LT_FRONTEND_LANGUAGE_TARGET |
+| --frontend-language        | Set frontend web interface language                                                                                                                                                                         | `(empty)` (auto-detect)             | LT_FRONTEND_LANGUAGE        |
 | --frontend-timeout         | Set frontend translation timeout                                                                                                                                                                            | `500`                                 | LT_FRONTEND_TIMEOUT         |
 | --api-keys-db-path         | Use a specific path inside the container for the local database. Can be absolute or relative                                                                                                                | `db/api_keys.db`                      | LT_API_KEYS_DB_PATH         |
 | --api-keys-remote          | Use this remote endpoint to query for valid API keys instead of using the local database                                                                                                                    | `Empty (use local db instead)`        | LT_API_KEYS_REMOTE          |
diff --git a/libretranslate/app.py b/libretranslate/app.py
index d30663f..7d0a427 100644
--- a/libretranslate/app.py
+++ b/libretranslate/app.py
@@ -429,7 +429,7 @@ def create_app(args):
         if args.disable_web_ui:
             abort(404)
 
-        langcode = request.args.get('lang')
+        langcode = args.frontend_language if len(args.frontend_language) > 0 else request.args.get('lang')
         if langcode and langcode in get_available_locale_codes(not args.debug):
             session.update(preferred_lang=langcode)
 
@@ -446,6 +446,7 @@ def create_app(args):
             current_locale=get_locale(),
             alternate_locales=get_alternate_locale_links(),
             under_attack=args.under_attack,
+            hide_api=args.hide_api,
         ))
 
         if args.require_api_key_secret:
diff --git a/libretranslate/default_values.py b/libretranslate/default_values.py
index 3d2e3a8..56c1600 100644
--- a/libretranslate/default_values.py
+++ b/libretranslate/default_values.py
@@ -116,6 +116,11 @@ _default_options_objects = [
         'default_value': 'locale',
         'value_type': 'str'
     },
+    {
+        'name': 'FRONTEND_LANGUAGE',
+        'default_value': '',
+        'value_type': 'str'
+    },
     {
         'name': 'FRONTEND_TIMEOUT',
         'default_value': 500,
@@ -161,6 +166,11 @@ _default_options_objects = [
         'default_value': False,
         'value_type': 'bool'
     },
+    {
+        'name': 'HIDE_API',
+        'default_value': False,
+        'value_type': 'bool'
+    },
     {
         'name': 'SHARED_STORAGE',
         'default_value': 'memory://',
diff --git a/libretranslate/main.py b/libretranslate/main.py
index ea6eb3d..2daebba 100644
--- a/libretranslate/main.py
+++ b/libretranslate/main.py
@@ -104,6 +104,13 @@ def get_args():
         metavar="<language code>",
         help="Set frontend default language - target (%(default)s)",
     )
+    parser.add_argument(
+        "--frontend-language",
+        type=str,
+        default=DEFARGS['FRONTEND_LANGUAGE'],
+        metavar="<language code>",
+        help="Set frontend interface language (%(default)s)",
+    )
     parser.add_argument(
         "--frontend-timeout",
         type=int,
@@ -153,6 +160,12 @@ def get_args():
         action="store_true",
         help="Require use of an API key for programmatic access to the API, unless the client also matches a fingerprint",
     )
+    parser.add_argument(
+        "--hide-api",
+        default=DEFARGS['HIDE_API'],
+        action="store_true",
+        help="Hide the API request/response fields in the frontend",
+    )
     parser.add_argument(
         "--under-attack",
         default=DEFARGS['UNDER_ATTACK'],
diff --git a/libretranslate/templates/index.html b/libretranslate/templates/index.html
index 46c71dd..9b62414 100644
--- a/libretranslate/templates/index.html
+++ b/libretranslate/templates/index.html
@@ -296,6 +296,7 @@
 			</div>
 		</div>
 
+		{% if not hide_api %}
 		<div class="section no-pad-bot" v-if="translationType !== 'files'">
 			<div class="container">
 				<div class="row center">
@@ -318,6 +319,7 @@
 				</div>
 			</div>
 		</div>
+		{% endif %}
 		{% if web_version %}
 		<div class="section no-pad-bot">
 			<div class="container">