diff --git a/circusweb/circushttpd.py b/circusweb/circushttpd.py
index 73d541a..086153b 100644
--- a/circusweb/circushttpd.py
+++ b/circusweb/circushttpd.py
@@ -13,6 +13,7 @@
 from circusweb import logger, __version__
 from circus.exc import CallError
 from circus.util import LOG_LEVELS, configure_logger
+from circus.py3compat import b
 from zmq.eventloop import ioloop
 from circusweb.util import AutoDiscovery, run_command
 from circusweb.session import (SessionManager, get_controller,
@@ -57,6 +58,14 @@
 }
 
 
+def encode(s):
+    return b64encode(s.encode('utf-8')).decode('utf-8')
+
+
+def decode(s):
+    return b64decode(s.encode('utf-8')).decode('utf-8')
+
+
 def require_logged_user(func):
 
     @wraps(func)
@@ -77,7 +86,7 @@ class BaseHandler(tornado.web.RequestHandler):
     def prepare(self):
         session_id = self.get_secure_cookie('session_id')
         if not session_id or not SessionManager.get(session_id):
-            session_id = uuid4().hex
+            session_id = b(uuid4().hex)
             session = SessionManager.new(session_id)
             self.set_secure_cookie('session_id', session_id)
         else:
@@ -95,7 +104,7 @@ def render_template(self, template_path, **data):
         server = '%s://%s/' % (self.request.protocol, self.request.host)
         namespace.update({'controller': get_controller(),
                           'version': __version__,
-                          'b64encode': b64encode,
+                          'b64encode': encode,
                           'dumps': json.dumps,
                           'session': self.session, 'messages': messages,
                           'SERVER': server})
@@ -206,7 +215,7 @@ def post(self, endpoint):
             'add_watcher',
             kwargs=dict((k, v[0]) for k, v in
                         self.request.arguments.iteritems()),
-            message='added a new watcher', endpoint=b64decode(endpoint),
+            message='added a new watcher', endpoint=decode(endpoint),
             redirect_url=self.reverse_url('watcher',
                                           endpoint,
                                           self.get_argument('name').lower()),
@@ -221,7 +230,7 @@ class WatcherHandler(BaseHandler):
     @gen.coroutine
     def get(self, endpoint, name):
         controller = get_controller()
-        endpoint = b64decode(endpoint)
+        endpoint = decode(endpoint)
         pids = yield gen.Task(controller.get_pids, name, endpoint)
         self.finish(self.render_template('watcher.html', pids=pids, name=name,
                                          endpoint=endpoint))
@@ -235,7 +244,7 @@ class WatcherSwitchStatusHandler(BaseHandler):
     def get(self, endpoint, name):
         url = yield self.run_command(command='switch_status',
                                      message='status switched',
-                                     endpoint=b64decode(endpoint),
+                                     endpoint=decode(endpoint),
                                      args=(name,),
                                      redirect_url=self.reverse_url('index'))
         self.redirect(url)
@@ -251,7 +260,7 @@ def get(self, endpoint, name, pid):
         url = yield self.run_command(
             command='killproc',
             message=msg.format(pid=pid),
-            endpoint=b64decode(endpoint),
+            endpoint=decode(endpoint),
             args=(name, pid),
             redirect_url=self.reverse_url('watcher', endpoint, name))
         self.redirect(url)
@@ -266,7 +275,7 @@ def get(self, endpoint, name):
         msg = 'removed one process from the {watcher} pool'
         url = yield self.run_command(command='decrproc',
                                      message=msg.format(watcher=name),
-                                     endpoint=b64decode(endpoint),
+                                     endpoint=decode(endpoint),
                                      args=(name,),
                                      redirect_url=self.reverse_url('watcher',
                                                                    endpoint,
@@ -283,7 +292,7 @@ def get(self, endpoint, name):
         msg = 'added one process to the {watcher} pool'
         url = yield self.run_command(command='incrproc',
                                      message=msg.format(watcher=name),
-                                     endpoint=b64decode(endpoint),
+                                     endpoint=decode(endpoint),
                                      args=(name,),
                                      redirect_url=self.reverse_url('watcher',
                                                                    endpoint,
@@ -301,7 +310,7 @@ def get(self, endpoint=None):
         sockets = {}
 
         if endpoint:
-            endpoint = b64decode(endpoint)
+            endpoint = decode(endpoint)
             sockets[endpoint] = yield gen.Task(controller.get_sockets,
                                                endpoint=endpoint)
         else:
@@ -325,7 +334,7 @@ class ReloadconfigHandler(BaseHandler):
     def get(self, endpoint):
         url = yield self.run_command(command='reloadconfig',
                                      message='reload the configuration',
-                                     endpoint=b64decode(endpoint),
+                                     endpoint=decode(endpoint),
                                      args=[],
                                      redirect_url=self.reverse_url('index'))
         self.redirect(url)
diff --git a/circusweb/client.py b/circusweb/client.py
index 28dc2b8..5896627 100644
--- a/circusweb/client.py
+++ b/circusweb/client.py
@@ -6,7 +6,7 @@
 from zmq.eventloop.zmqstream import ZMQStream
 
 from circus.exc import CallError
-from circus.py3compat import string_types
+from circus.py3compat import string_types, b
 from circus.util import get_connection
 from circus.client import CircusClient, make_message
 
@@ -59,7 +59,7 @@ def call(self, cmd, callback):
                 raise CallError(str(e))
 
         socket = self.context.socket(zmq.DEALER)
-        socket.setsockopt(zmq.IDENTITY, uuid.uuid4().hex)
+        socket.setsockopt(zmq.IDENTITY, b(uuid.uuid4().hex))
         socket.setsockopt(zmq.LINGER, 0)
         get_connection(socket, self.endpoint, self.ssh_server,
                        self.ssh_keyfile)
@@ -84,7 +84,7 @@ def recv_callback(msg):
             stream.on_recv(recv_callback)
 
         try:
-            socket.send(cmd)
+            socket.send(b(cmd))
         except zmq.ZMQError as e:
             raise CallError(str(e))
 
diff --git a/circusweb/namespace.py b/circusweb/namespace.py
index 2f3bcb5..fb988eb 100644
--- a/circusweb/namespace.py
+++ b/circusweb/namespace.py
@@ -28,7 +28,7 @@ def get_stats(self, watchers=[], watchersWithPids=[],
 
         for watcher_tuple in watchersWithPids:
             watcher, encoded_endpoint = watcher_tuple
-            endpoint = b64decode(encoded_endpoint)
+            endpoint = b64decode(encoded_endpoint).decode("utf-8")
             if watcher == "sockets":
                 sockets = yield gen.Task(controller.get_sockets,
                                          endpoint=endpoint)
@@ -54,18 +54,20 @@ def get_stats(self, watchers=[], watchersWithPids=[],
 
     @classmethod
     def consume_stats(cls, watcher, pid, stat, stat_endpoint):
-        stat_endpoint_b64 = b64encode(stat_endpoint)
+        stat_endpoint_b64 = b64encode(stat_endpoint.encode('utf-8'))
         for p in cls.participants[stat_endpoint]:
             if watcher == 'sockets':
                 # if we get information about sockets and we explicitely
                 # requested them, send back the information.
                 if 'sockets' in p.watchersWithPids and 'fd' in stat:
                     p.emit('socket-stats-{fd}-{endpoint}'.format(
-                        fd=stat['fd'], endpoint=stat_endpoint_b64),
+                        fd=stat['fd'],
+                        endpoint=stat_endpoint_b64.decode('utf-8')),
                         **stat)
                 elif 'sockets' in p.watchers and 'addresses' in stat:
                     p.emit('socket-stats-{endpoint}'.format(
-                        endpoint=stat_endpoint_b64), reads=stat['reads'],
+                        endpoint=stat_endpoint_b64.decode('utf-8')),
+                        reads=stat['reads'],
                         adresses=stat['addresses'])
             else:
                 available_watchers = p.watchers + p.watchersWithPids + \
@@ -75,12 +77,14 @@ def consume_stats(cls, watcher, pid, stat, stat_endpoint):
                     if (watcher == 'circus' and
                             stat.get('name', None) in available_watchers):
                         p.emit('stats-{watcher}-{endpoint}'.format(
-                            watcher=stat['name'], endpoint=stat_endpoint_b64),
+                            watcher=stat['name'],
+                            endpoint=stat_endpoint_b64.decode('utf-8')),
                             mem=stat['mem'], cpu=stat['cpu'], age=stat['age'])
                     else:
                         if pid is None:  # means that it's the aggregation
                             p.emit('stats-{watcher}-{endpoint}'.format(
-                                watcher=watcher, endpoint=stat_endpoint_b64),
+                                watcher=watcher,
+                                endpoint=stat_endpoint_b64.decode('utf-8')),
                                 mem=stat['mem'], cpu=stat['cpu'],
                                 age=stat['age'])
                         else:
@@ -88,7 +92,8 @@ def consume_stats(cls, watcher, pid, stat, stat_endpoint):
                                 p.emit(
                                     'stats-{watcher}-{pid}-{endpoint}'.format(
                                         watcher=watcher, pid=pid,
-                                        endpoint=stat_endpoint_b64),
+                                        endpoint=stat_endpoint_b64.decode(
+                                            'utf-8')),
                                     mem=stat['mem'],
                                     cpu=stat['cpu'],
                                     age=stat['age'])
diff --git a/circusweb/stats_client.py b/circusweb/stats_client.py
index dda828c..bfdb785 100644
--- a/circusweb/stats_client.py
+++ b/circusweb/stats_client.py
@@ -17,7 +17,7 @@ def __init__(self, topics, loop, callback, context=None,
         self.pubsub_socket = self.context.socket(zmq.SUB)
         get_connection(self.pubsub_socket, self.endpoint, ssh_server)
         for topic in self.topics:
-            self.pubsub_socket.setsockopt(zmq.SUBSCRIBE, topic)
+            self.pubsub_socket.setsockopt(zmq.SUBSCRIBE, topic.encode('utf-8'))
         self.stream = ZMQStream(self.pubsub_socket, loop)
         self.stream.on_recv(self.process_message)
         self.callback = callback
@@ -36,7 +36,7 @@ def __exit__(self, exc_type, exc_value, traceback):
     def process_message(self, msg):
         topic, stat = msg
 
-        topic = topic.split('.')
+        topic = topic.decode('utf-8').split('.')
         if len(topic) == 3:
             __, watcher, subtopic = topic
             self.callback(watcher, subtopic, json.loads(stat), self.endpoint)
diff --git a/circusweb/templates/index.html b/circusweb/templates/index.html
index 460499c..cb5f6a1 100644
--- a/circusweb/templates/index.html
+++ b/circusweb/templates/index.html
@@ -171,6 +171,6 @@
             watchers.push(['${plugin}', ${dumps(b64encode(stat_endpoint))}]);
         %endfor
     % endfor
-    supervise(socket, watchers, undefined, ${dumps(list(endpoints.keys()))}, ${dumps(endpoints.values())});
+    supervise(socket, watchers, undefined, ${dumps(list(endpoints.keys()))}, ${dumps(list(endpoints.values()))});
 });
 </script>
diff --git a/circusweb/templates/sockets.html b/circusweb/templates/sockets.html
index 40ebdca..e13d2aa 100644
--- a/circusweb/templates/sockets.html
+++ b/circusweb/templates/sockets.html
@@ -48,6 +48,6 @@
             watchers.push(['sockets', ${dumps(b64encode(controller.get_client(endpoint).stats_endpoint))}, ${dumps(b64encode(endpoint))}]);
             stats_endpoints.push(${dumps(controller.get_client(endpoint).stats_endpoint)});
         % endfor
-        supervise(socket, [], watchers, ${dumps(sockets.keys())}, stats_endpoints);
+        supervise(socket, [], watchers, ${dumps(list(sockets.keys()))}, stats_endpoints);
     });
 </script>