diff --git a/.gitignore b/.gitignore
index dcee8fa..3e6f269 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 gems
+locale
 *.swp
 db/*.sqlite3
 db/*.sqlite3-*
diff --git a/Gemfile b/Gemfile
index 91a092f..1884105 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,3 +7,4 @@ gem 'rackup'
 gem 'puma'
 gem 'sqlite3'
 gem 'bcrypt'
+gem 'gettext'
diff --git a/Gemfile.lock b/Gemfile.lock
index c7e98b5..ca3398b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -26,16 +26,29 @@ GEM
     concurrent-ruby (1.3.5)
     connection_pool (2.5.0)
     drb (2.2.1)
+    erubi (1.13.1)
+    forwardable (1.3.3)
+    gettext (3.5.1)
+      erubi
+      locale (>= 2.0.5)
+      prime
+      racc
+      text (>= 1.3.0)
     i18n (1.14.7)
       concurrent-ruby (~> 1.0)
+    locale (2.1.4)
     logger (1.6.6)
     mini_portile2 (2.8.8)
     minitest (5.25.5)
     mustermann (3.0.3)
       ruby2_keywords (~> 0.0.1)
     nio4r (2.7.4)
+    prime (0.1.3)
+      forwardable
+      singleton
     puma (6.6.0)
       nio4r (~> 2.0)
+    racc (1.8.1)
     rack (3.1.12)
     rack-protection (4.1.1)
       base64 (>= 0.1.0)
@@ -59,10 +72,12 @@ GEM
     sinatra-activerecord (2.0.28)
       activerecord (>= 4.1)
       sinatra (>= 1.0)
+    singleton (0.3.0)
     sqlite3 (2.6.0)
       mini_portile2 (~> 2.8.0)
     sqlite3 (2.6.0-arm64-darwin)
     sqlite3 (2.6.0-x86_64-darwin)
+    text (1.3.1)
     tilt (2.6.0)
     timeout (0.4.3)
     tzinfo (2.0.6)
@@ -76,6 +91,7 @@ PLATFORMS
 
 DEPENDENCIES
   bcrypt
+  gettext
   puma
   rackup
   rake
diff --git a/Rakefile b/Rakefile
index becde0a..ae9277e 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,2 +1,20 @@
 require_relative 'vote'
 require 'sinatra/activerecord/rake'
+
+desc "Update PO files"
+task :updatepo do
+  require 'gettext/tools/xgettext'
+  GetText::Tools::XGetText.run(*["vote.rb"] + Dir.glob("views/*.{rb,erb}") + ["-o", "po/vote.pot"])
+  require "gettext/tools/msgmerge"
+  Dir.glob('po/**/vote.po').collect { |po| /po\/(.+)\/vote\.po/.match(po)[1] }.each do |locale|
+    GetText::Tools::MsgMerge.run("po/#{locale}/vote.po", "po/vote.pot", "-o", "po/#{locale}/vote.po")
+  end
+end
+
+desc "Build MO files"
+task :buildmo do
+  require 'gettext/tools/msgfmt'
+  Dir.glob('po/**/vote.po').collect { |po| /po\/(.+)\/vote\.po/.match(po)[1] }.each do |locale|
+    GetText::Tools::MsgFmt.run("po/#{locale}/vote.po", "-o", "locale/#{locale}/vote.mo")
+  end
+end
diff --git a/po/ca/vote.po b/po/ca/vote.po
new file mode 100644
index 0000000..cf5df6c
--- /dev/null
+++ b/po/ca/vote.po
@@ -0,0 +1,30 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2025-03-29 21:18-0600\n"
+"PO-Revision-Date: 2025-03-29 20:41-0600\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"Language: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=INTEGER; plural=EXPRESSION;\n"
+
+#: ../views/login.erb:1
+msgid "Login"
+msgstr "Connexió"
+
+#: ../views/login.erb:7
+msgid "Email"
+msgstr "Correu"
+
+#: ../views/login.erb:11
+msgid "Password"
+msgstr "Contrasenya"
diff --git a/po/vote.pot b/po/vote.pot
new file mode 100644
index 0000000..b7088a4
--- /dev/null
+++ b/po/vote.pot
@@ -0,0 +1,31 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2025-03-29 21:18-0600\n"
+"PO-Revision-Date: 2025-03-29 21:18-0600\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"Language: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=INTEGER; plural=EXPRESSION;\n"
+
+#: ../views/login.erb:1
+msgid "Login"
+msgstr ""
+
+#: ../views/login.erb:7
+msgid "Email"
+msgstr ""
+
+#: ../views/login.erb:11
+msgid "Password"
+msgstr ""
diff --git a/views/login.erb b/views/login.erb
index ebd8a03..2c64001 100644
--- a/views/login.erb
+++ b/views/login.erb
@@ -1,14 +1,14 @@
-<h1>Log in</h1>
+<h1><%= _("Login") %></h1>
 <% if @error %>
   <p class="error"><%= @error %></p>
 <% end %>
 <form action="/login" method="POST">
   <p>
-    <label for="email">Email</label>
+    <label for="email"><%= _("Email") %></label>
     <input type="text" name="email">
   </p>
   <p>
-    <label for="password">Password</label>
+    <label for="password"><%= _("Password") %></label>
     <input type="password" name="password">
   </p>
   <button type="submit">Log in</button>
diff --git a/vote.rb b/vote.rb
index 065cfc2..b939829 100644
--- a/vote.rb
+++ b/vote.rb
@@ -1,6 +1,7 @@
 require 'sinatra'
 require 'sinatra/activerecord'
 require 'bcrypt'
+require 'gettext'
 require 'securerandom'
 require_relative 'mj'
 
@@ -59,6 +60,11 @@ set :values, [ { :id => 1, :label => "Awful" },
                { :id => 7, :label => "Excellent" } ]
 MajorityJudgment.values = settings.values
 
+include GetText
+set_output_charset('UTF-8')
+bindtextdomain('vote', 'locale')
+set_locale('ca')
+
 get '/' do
   redirect '/login' unless current_user
   @votes = Vote.all