diff --git a/circusweb/circushttpd.py b/circusweb/circushttpd.py
index 2a47092..ca041ab 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 string_types, b
 from zmq.eventloop import ioloop
 from circusweb.util import AutoDiscovery, run_command
 from circusweb.session import (SessionManager, get_controller,
@@ -56,6 +57,11 @@
     'session.auto': True
 }
 
+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):
 
@@ -77,7 +83,7 @@ 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 +101,7 @@ 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 +212,7 @@ 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',
                                           self.get_argument('name').lower()),
             redirect_on_error=self.reverse_url('index'))
@@ -220,7 +226,7 @@ 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))
@@ -234,7 +240,7 @@ 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)
@@ -250,7 +256,7 @@ 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)
@@ -265,7 +271,7 @@ 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,
@@ -282,7 +288,7 @@ 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,
@@ -300,7 +306,7 @@ 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:
@@ -324,7 +330,7 @@ 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/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>