diff --git a/assets/css/darktheme.css b/assets/css/darktheme.css
index bd043d9e..8ecf2ea3 100644
--- a/assets/css/darktheme.css
+++ b/assets/css/darktheme.css
@@ -21,6 +21,10 @@ body {
   color: #f0f0f0;
 }
 
-.pure-form > fieldset > input {
+.pure-form > fieldset > input, .pure-control-group > input {
+  color: #101010;
+}
+
+.pure-form > fieldset > select, .pure-control-group > select {
   color: #101010;
 }
diff --git a/config/sql/users.sql b/config/sql/users.sql
index 0142ab40..5340d52a 100644
--- a/config/sql/users.sql
+++ b/config/sql/users.sql
@@ -9,6 +9,7 @@ CREATE TABLE public.users
     notifications text[] COLLATE pg_catalog."default",
     subscriptions text[] COLLATE pg_catalog."default",
     email text COLLATE pg_catalog."default" NOT NULL,
+    preferences text COLLAGE pg_catalog."default",
     CONSTRAINT users_email_key UNIQUE (email),
     CONSTRAINT users_id_key UNIQUE (id)
 )
diff --git a/src/invidious.cr b/src/invidious.cr
index 715bbd89..6f0bf088 100644
--- a/src/invidious.cr
+++ b/src/invidious.cr
@@ -214,24 +214,16 @@ spawn do
 end
 
 before_all do |env|
-  if env.request.cookies.has_key?("SID")
-    env.set "authorized", true
+  if env.request.cookies.has_key? "SID"
+    headers = HTTP::Headers.new
+    headers["Cookie"] = env.request.headers["Cookie"]
 
     sid = env.request.cookies["SID"].value
-    env.set "sid", sid
-
-    subscriptions = PG_DB.query_one?("SELECT subscriptions FROM users WHERE id = $1", sid, as: Array(String))
-    subscriptions ||= [] of String
-    env.set "subscriptions", subscriptions
-
-    notifications = PG_DB.query_one?("SELECT cardinality(notifications) FROM users WHERE id = $1", sid, as: Int32)
-    notifications ||= 0
 
-    env.set "notifications", notifications
-  end
+    client = make_client(YT_URL)
+    user = get_user(sid, client, headers, PG_DB, false)
 
-  if env.request.cookies.has_key?("darktheme") && env.request.cookies["darktheme"].value == "true"
-    env.set "darktheme", true
+    env.set "user", user
   end
 end
 
@@ -240,9 +232,11 @@ get "/" do |env|
 end
 
 get "/watch" do |env|
-  authorized = env.get? "authorized"
-  if authorized
-    subscriptions = env.get("subscriptions").as(Array(String))
+  user = env.get? "user"
+  if user
+    user = user.as(User)
+    preferences = user.preferences
+    subscriptions = user.subscriptions.as(Array(String))
   end
   subscriptions ||= [] of String
 
@@ -670,11 +664,73 @@ get "/signout" do |env|
   env.redirect referer
 end
 
+get "/preferences" do |env|
+  user = env.get? "user"
+
+  referer = env.request.headers["referer"]?
+  referer ||= "/preferences"
+
+  if referer.size > 64
+    puts "nope"
+    referer = "/preferences"
+  end
+
+  if user
+    user = user.as(User)
+    templated "preferences"
+  else
+    env.redirect referer
+  end
+end
+
+post "/preferences" do |env|
+  user = env.get? "user"
+
+  referer = env.params.query["referer"]?
+  referer ||= "/preferences"
+
+  if user
+    user = user.as(User)
+
+    video_loop = env.params.body["video_loop"]?.try &.as(String)
+    video_loop ||= "off"
+    video_loop = video_loop == "on"
+
+    autoplay = env.params.body["autoplay"]?.try &.as(String)
+    autoplay ||= "off"
+    autoplay = autoplay == "on"
+
+    quality = env.params.body["quality"]?.try &.as(String)
+    quality ||= "hd720"
+
+    volume = env.params.body["volume"]?.try &.as(String).to_i
+    volume ||= 100
+
+    dark_mode = env.params.body["dark_mode"]?.try &.as(String)
+    dark_mode ||= "off"
+    dark_mode = dark_mode == "on"
+
+    preferences = {
+      "video_loop" => video_loop,
+      "autoplay"   => autoplay,
+      "quality"    => quality,
+      "volume"     => volume,
+      "dark_mode"  => dark_mode,
+    }.to_json
+
+    PG_DB.exec("UPDATE users SET preferences = $1 WHERE email = $2", preferences, user.email)
+  end
+
+  env.redirect referer
+end
+
 # Get subscriptions for authorized user
 get "/feed/subscriptions" do |env|
-  authorized = env.get? "authorized"
+  user = env.get? "user"
+
+  if user
+    user = user.as(User)
 
-  if authorized
     max_results = env.params.query["maxResults"]?.try &.to_i || 40
 
     page = env.params.query["page"]?.try &.to_i
@@ -688,14 +744,6 @@ get "/feed/subscriptions" do |env|
       offset = (page - 1) * max_results
     end
 
-    headers = HTTP::Headers.new
-    headers["Cookie"] = env.request.headers["Cookie"]
-
-    sid = env.get("sid").as(String)
-
-    client = make_client(YT_URL)
-    user = get_user(sid, client, headers, PG_DB)
-
     args = arg_array(user.subscriptions, 3)
     videos = PG_DB.query_all("SELECT * FROM channel_videos WHERE ucid IN (#{args}) \
     ORDER BY published DESC LIMIT $1 OFFSET $2", [limit, offset] + user.subscriptions, as: ChannelVideo)
@@ -709,7 +757,7 @@ get "/feed/subscriptions" do |env|
       videos = videos[0..max_results]
     end
 
-    PG_DB.exec("UPDATE users SET notifications = $1 WHERE id = $2", [] of String, sid)
+    PG_DB.exec("UPDATE users SET notifications = $1 WHERE id = $2", [] of String, user.id)
     env.set "notifications", 0
 
     templated "subscriptions"
@@ -726,12 +774,14 @@ end
 # /modify_notifications?receive_all_updates=false&receive_no_updates=false
 # will "unding" all subscriptions.
 get "/modify_notifications" do |env|
-  authorized = env.get? "authorized"
+  user = env.get? "user"
 
   referer = env.request.headers["referer"]?
   referer ||= "/"
 
-  if authorized
+  if user
+    user = user.as(User)
+
     channel_req = {} of String => String
 
     channel_req["receive_all_updates"] = env.params.query["receive_all_updates"]? || "true"
@@ -770,12 +820,14 @@ get "/modify_notifications" do |env|
 end
 
 get "/subscription_manager" do |env|
-  authorized = env.get? "authorized"
-  if !authorized
+  user = env.get? "user"
+
+  if !user
     next env.redirect "/"
   end
 
-  subscriptions = env.get?("subscriptions").as(Array(String))
+  user = user.as(User)
+  subscriptions = user.subscriptions
   subscriptions ||= [] of String
 
   client = make_client(YT_URL)
@@ -788,11 +840,13 @@ get "/subscription_manager" do |env|
 end
 
 get "/subscription_ajax" do |env|
-  authorized = env.get? "authorized"
+  user = env.get? "user"
   referer = env.request.headers["referer"]?
   referer ||= "/"
 
-  if authorized
+  if user
+    user = user.as(User)
+
     if env.params.query["action_create_subscription_to_channel"]?
       action = "action_create_subscription_to_channel"
     elsif env.params.query["action_remove_subscriptions"]?
@@ -827,7 +881,7 @@ get "/subscription_ajax" do |env|
 
     # Update user
     if client.post(post_url, headers, post_req).status_code == 200
-      sid = env.get("sid").as(String)
+      sid = user.id
 
       case action
       when .starts_with? "action_create"
@@ -847,11 +901,10 @@ get "/user/:user" do |env|
 end
 
 get "/channel/:ucid" do |env|
-  authorized = env.get? "authorized"
-  if authorized
-    sid = env.get("sid").as(String)
-
-    subscriptions = PG_DB.query_one?("SELECT subscriptions FROM users WHERE id = $1", sid, as: Array(String))
+  user = env.get? "user"
+  if user
+    user = user.as(User)
+    subscriptions = user.subscriptions
   end
   subscriptions ||= [] of String
 
@@ -889,20 +942,6 @@ get "/channel/:ucid" do |env|
   templated "channel"
 end
 
-get "/modify_theme" do |env|
-  referer = env.request.headers["referer"]?
-  referer ||= "/"
-
-  if env.params.query["dark"]?
-    env.response.cookies["darktheme"] = "true"
-  elsif env.params.query["light"]?
-    env.request.cookies["darktheme"].expires = Time.new(1990, 1, 1)
-    env.request.cookies.add_response_headers(env.response.headers)
-  end
-
-  env.redirect referer
-end
-
 get "/redirect" do |env|
   if env.params.query["q"]?
     env.redirect env.params.query["q"]
@@ -1158,6 +1197,6 @@ end
 public_folder "assets"
 
 add_handler FilteredCompressHandler.new
-add_context_storage_type(Array(String))
+add_context_storage_type(User)
 
 Kemal.run
diff --git a/src/invidious/helpers.cr b/src/invidious/helpers.cr
index 3129471b..ddd4914c 100644
--- a/src/invidious/helpers.cr
+++ b/src/invidious/helpers.cr
@@ -17,6 +17,14 @@ macro rendered(filename)
   render "src/invidious/views/#{{{filename}}}.ecr"
 end
 
+DEFAULT_USER_PREFERENCES = Preferences.from_json({
+  "video_loop" => false,
+  "autoplay"   => false,
+  "quality"    => "hd720",
+  "volume"     => 100,
+  "dark_mode"  => false,
+}.to_json)
+
 class Config
   YAML.mapping({
     crawl_threads:   Int32,
@@ -86,12 +94,6 @@ class Video
 end
 
 class InvidiousChannel
-  module XMLConverter
-    def self.from_rs(rs)
-      XML.parse_html(rs.read(String))
-    end
-  end
-
   add_mapping({
     id:      String,
     author:  String,
@@ -111,12 +113,33 @@ class ChannelVideo
 end
 
 class User
+  module PreferencesConverter
+    def self.from_rs(rs)
+      Preferences.from_json(rs.read(String))
+    end
+  end
+
   add_mapping({
     id:            String,
     updated:       Time,
     notifications: Array(String),
     subscriptions: Array(String),
     email:         String,
+    preferences:   {
+      type:      Preferences,
+      default:   DEFAULT_USER_PREFERENCES,
+      converter: PreferencesConverter,
+    },
+  })
+end
+
+class Preferences
+  JSON.mapping({
+    video_loop: Bool,
+    autoplay:   Bool,
+    quality:    String,
+    volume:     Int32,
+    dark_mode:  Bool,
   })
 end
 
@@ -674,11 +697,11 @@ def fetch_channel(ucid, client, db, pull_all_videos = true)
   return channel
 end
 
-def get_user(sid, client, headers, db)
+def get_user(sid, client, headers, db, refresh = true)
   if db.query_one?("SELECT EXISTS (SELECT true FROM users WHERE id = $1)", sid, as: Bool)
     user = db.query_one("SELECT * FROM users WHERE id = $1", sid, as: User)
 
-    if Time.now - user.updated > 1.minute
+    if refresh && Time.now - user.updated > 1.minute
       user = fetch_user(sid, client, headers, db)
       user_array = user.to_a
       args = arg_array(user_array)
@@ -723,7 +746,7 @@ def fetch_user(sid, client, headers, db)
     email = ""
   end
 
-  user = User.new(sid, Time.now, [] of String, channels, email)
+  user = User.new(sid, Time.now, [] of String, channels, email, DEFAULT_USER_PREFERENCES)
   return user
 end
 
diff --git a/src/invidious/views/channel.ecr b/src/invidious/views/channel.ecr
index e67dbfda..084ad10d 100644
--- a/src/invidious/views/channel.ecr
+++ b/src/invidious/views/channel.ecr
@@ -3,7 +3,7 @@
 <% end %>
 
 <h1><%= author %></h1>
-<% if authorized %>
+<% if user %>
     <% if subscriptions.includes? ucid %>
     <p>
         <a href="/subscription_ajax?action_remove_subscriptions=1&c=<%= ucid %>">
diff --git a/src/invidious/views/layout.ecr b/src/invidious/views/layout.ecr
index 11ea7b48..89764f18 100644
--- a/src/invidious/views/layout.ecr
+++ b/src/invidious/views/layout.ecr
@@ -8,7 +8,7 @@
   <link rel="stylesheet" href="https://unpkg.com/purecss@1.0.0/build/grids-responsive-min.css">
   <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.6/css/all.css">
   <link rel="stylesheet" href="/css/default.css">
-  <% if env.get? "darktheme" %>
+  <% if env.get?("user") && env.get("user").as(User).preferences.dark_mode %>
   <link rel="stylesheet" href="/css/darktheme.css">
   <% else %>
   <link rel="stylesheet" href="/css/lighttheme.css">
@@ -21,46 +21,46 @@
     <div class="pure-u-1 pure-u-md-1-5"></div>
     <div class="pure-u-1 pure-u-md-3-5">
       <div class="pure-g" style="padding:1em;">
-        <div class="pure-u-1 pure-u-md-1-5">
+        <div class="pure-u-1 pure-u-md-4-24">
           <center><a href="/" class="pure-menu-heading">Invidious</a></center>
         </div>
-        <div class="pure-u-1 pure-u-md-3-5">
+        <div class="pure-u-1 pure-u-md-12-24">
           <form class="pure-form" action="/search" method="get">
             <fieldset>
               <input type="search" style="width:100%;" name="q" placeholder="search" value="<%= env.params.query["q"]? %>">
             </fieldset>
           </form>
         </div>
-        <div class="pure-u-1 pure-u-md-1-5">
-        <% if env.get? "authorized" %>
-        <div class="pure-g">
-          <div class="pure-u-1-3">
-            <a href="/feed/subscriptions" class="pure-menu-heading">
-              <% notifications = env.get("notifications").as(Int32) %>
-              <% if notifications > 0 %>
-              <center><%= notifications %> <i class="fas fa-bell"></i></center>
-              <% else %>
-              <center><i class="far fa-bell"></i></center>
-              <% end %>
-            </a>
+        <div class="pure-u-1 pure-u-md-8-24">
+        <% if env.get? "user" %>
+          <div class="pure-g">
+            <div class="pure-u-1-3">
+              <a href="/feed/subscriptions" class="pure-menu-heading">
+                <% notifications = env.get("user").as(User).notifications.size %>
+                <% if notifications > 0 %>
+                <center><%= notifications %> <i class="fas fa-bell"></i></center>
+                <% else %>
+                <center><i class="far fa-bell"></i></center>
+                <% end %>
+              </a>
+            </div>
+            <div class="pure-u-1-3">
+              <a href="/preferences" class="pure-menu-heading">
+                <center><i class="fas fa-cog"></i></center>
+              </a>
+            </div>
+            <div class="pure-u-1-3">
+              <a href="/signout" class="pure-menu-heading">
+                <center>Sign out</center>
+              </a>
+            </div>
           </div>
-          <div class="pure-u-2-3">
-              <center><a href="/signout" class="pure-menu-heading">Sign out</a></center>
-          </div>
-        </div>
         <% else %>
           <center><a href="/login" class="pure-menu-heading">Login</a></center>
         <% end %>
         </div>
       </div>
       <%= content %>
-      <center class="h-box">
-        <% if env.get? "darktheme" %>
-        <a href="/modify_theme?light">Light theme</a>
-        <% else %>
-        <a href="/modify_theme?dark">Dark theme</a>
-        <% end %>
-      </center>
       <center class="h-box">
         Released under AGPLv3 by <a href="https://github.com/omarroth">Omar Roth</a> -
         source available <a href="https://github.com/omarroth/invidious">here</a>
diff --git a/src/invidious/views/preferences.ecr b/src/invidious/views/preferences.ecr
new file mode 100644
index 00000000..20eddbab
--- /dev/null
+++ b/src/invidious/views/preferences.ecr
@@ -0,0 +1,50 @@
+<% content_for "header" do %>
+<title>Preferences - Invidious</title>
+<% end %>
+
+<script>
+function update_value(element) {
+    document.getElementById('volume-value').innerText = element.value;
+}
+</script>
+
+<form class="pure-form pure-form-aligned" action="/preferences?referer=<%= referer %>" method="post">
+    <fieldset>
+        <legend>Player preferences</legend>
+
+        <div class="pure-control-group">
+            <label for="video_loop">Always loop: </label>
+            <input name="video_loop" id="video_loop" type="checkbox" <% if user.preferences.video_loop %>checked<% end %>>
+        </div>
+
+        <div class="pure-control-group">
+            <label for="autoplay">Autoplay: </label>
+            <input name="autoplay" id="autoplay" type="checkbox" <% if user.preferences.autoplay %>checked<% end %>>
+        </div>
+
+        <div class="pure-control-group">
+            <label for="quality">Preferred video quality: </label>
+            <select name="quality" id="quality" selected="<%= user.preferences.quality %>">
+                <option>hd720</option>
+                <option>medium</option>
+                <option>small</option>
+            </select>
+        </div>
+
+        <div class="pure-control-group">
+            <label for="volume">Player volume: </label>
+            <input name="volume" id="volume" oninput="update_value(this);" type="range" min="0" max="100" step="5" value="<%= user.preferences.volume %>">
+            <span class="pure-form-message-inline" id="volume-value"><%= user.preferences.volume %></span>
+        </div>
+
+        <legend>Visual preferences</legend>
+        <div class="pure-control-group">
+            <label for="dark_mode">Dark mode: </label>
+            <input name="dark_mode" id="dark_mode" type="checkbox" <% if user.preferences.dark_mode %>checked<% end %>>
+        </div>
+
+        <div class="pure-controls">
+            <button type="submit" class="pure-button pure-button-primary">Save preferences</button>
+        </div>
+    </fieldset>
+</form>
\ No newline at end of file
diff --git a/src/invidious/views/watch.ecr b/src/invidious/views/watch.ecr
index 0d25b994..30ac00a1 100644
--- a/src/invidious/views/watch.ecr
+++ b/src/invidious/views/watch.ecr
@@ -17,8 +17,12 @@
             <% end %>
         <% else %>
             <% fmt_stream.each_with_index do |fmt, i| %>
+                <% if preferences %>
+                <source src="<%= fmt["url"] %>" type='<%= fmt["type"] %>' label="<%= fmt["label"] %>" selected="<%= preferences.quality == fmt["label"].split(" - ")[0] %>">
+                <% else %>
                 <source src="<%= fmt["url"] %>" type='<%= fmt["type"] %>' label="<%= fmt["label"] %>" selected="<%= i == 0 ? true : false %>">
-            <% end %>    
+                <% end %>
+            <% end %>
         <% end %>
     </video>
 </div>
@@ -26,6 +30,10 @@
 <script>
 var options = {
     preload: "auto",
+    <% if preferences %>
+    <% if preferences.autoplay %>autoplay: true, <% end %>
+    <% if preferences.video_loop %>loop: true, <% end %>
+    <% end %>
     playbackRates: [0.5, 1, 1.5, 2],
     controlBar: {
       children: [
@@ -81,6 +89,9 @@ var player = videojs('player', options, function() {
   });
 });
 
+<% if preferences %>
+player.volume(<%= preferences.volume.to_f / 100 %>);
+<% end %>
 player.offset({
   start: <%= video_start %>,
   end: <%= video_end %>
@@ -165,7 +176,7 @@ player.src(currentSources);
                     <h3><%= video.author %></h3>
                 </a>
             </p>
-        <% if authorized %>
+        <% if user %>
             <% if subscriptions.includes? video.ucid %>
             <p>
                 <a href="/subscription_ajax?action_remove_subscriptions=1&c=<%= video.ucid %>">