diff --git a/src/controller/meta_handler.rs b/src/controller/meta_handler.rs
index 886a7d99..2a7650f0 100644
--- a/src/controller/meta_handler.rs
+++ b/src/controller/meta_handler.rs
@@ -1,4 +1,4 @@
-use std::sync::LazyLock;
+use std::{collections::HashMap, sync::LazyLock};
 
 use super::{db_utils::u32_to_ivec, fmt::md2html, Claim, SiteConfig};
 use crate::{error::AppError, DB};
@@ -14,6 +14,13 @@ use http::{HeaderName, StatusCode};
 use rinja_axum::{into_response, Template};
 use tracing::error;
 
+static I18N: LazyLock<HashMap<&str, &str>> = LazyLock::new(|| {
+    let mut i18n = HashMap::new();
+    i18n.insert("sign_in", "Sign in");
+    i18n.insert("sign_up", "Sign up");
+    i18n
+});
+
 #[derive(Template)]
 #[template(path = "error.html", escape = "none")]
 struct PageError<'a> {
@@ -176,6 +183,7 @@ pub(super) struct PageData<'a> {
     pub(super) site_description: String,
     pub(super) claim: Option<Claim>,
     pub(super) has_unread: bool,
+    pub(super) i18n: HashMap<&'a str, &'a str>,
 }
 
 impl<'a> PageData<'a> {
@@ -186,12 +194,14 @@ impl<'a> PageData<'a> {
         has_unread: bool,
     ) -> Self {
         let site_description = md2html(&site_config.description);
+        let i18n = I18N.clone();
         Self {
             title,
             site_name: &site_config.site_name,
             site_description,
             claim,
             has_unread,
+            i18n,
         }
     }
 }
diff --git a/src/controller/user.rs b/src/controller/user.rs
index 1b91ce83..a27c858b 100644
--- a/src/controller/user.rs
+++ b/src/controller/user.rs
@@ -36,7 +36,7 @@ use ring::{
 use rinja_axum::{into_response, Template};
 use serde::Deserialize;
 use sled::Db;
-use std::{cmp::Ordering, fmt::Display, num::NonZeroU32, time::Duration};
+use std::{cmp::Ordering, collections::HashMap, fmt::Display, num::NonZeroU32, time::Duration};
 use tokio::time::sleep;
 
 /// Page data: `user.html`
@@ -913,6 +913,10 @@ pub(crate) async fn signup() -> Result<impl IntoResponse, AppError> {
     DB.open_tree("captcha")?
         .insert(&captcha_id, &*captcha.chars_as_string())?;
 
+    let mut i18n = HashMap::new();
+    i18n.insert("sign_in", "Sign in");
+    i18n.insert("sign_up", "Sign up");
+
     let page_signup = PageSignup {
         page_data,
         captcha_id,
diff --git a/templates/signup.html b/templates/signup.html
index 066dbd09..f5212843 100644
--- a/templates/signup.html
+++ b/templates/signup.html
@@ -12,7 +12,7 @@
     <form id="signup" class="box" action="/signup" method="post">
         <fieldset>
             <div class="content">
-                <center><h1>Sign up</h1></center>
+                <center><h1>{{ page_data.i18n.get("sign_up").unwrap() }}</h1></center>
             </div>
             <div class="field">
                 <div class="control has-icons-left">