diff --git a/connectcore-demo-example/demoserver.py b/connectcore-demo-example/demoserver.py
index 699ae98..42c4e30 100755
--- a/connectcore-demo-example/demoserver.py
+++ b/connectcore-demo-example/demoserver.py
@@ -15,6 +15,7 @@
 # PERFORMANCE OF THIS SOFTWARE.
 
 import argparse
+import cgi
 import http.server
 import json
 import logging
@@ -139,6 +140,153 @@ class RequestHandler(http.server.SimpleHTTPRequestHandler):
 
             # Send the JSON value.
             self.wfile.write(json.dumps(status).encode(encoding="utf_8"))
+        elif re.search("/ajax/fs_list_directory", self.path) is not None:
+            # Set the response headers.
+            self._set_headers(200)
+
+            # Get the JSON data.
+            data = self.rfile.read(int(self.headers["Content-Length"]))
+            path = json.loads(data.decode("utf-8")).get("directory", None)
+
+            log.debug("List directory: %s", path)
+
+            if not path or not os.path.exists(path):
+                error = "Invalid path" if not path else "No such file or directory"
+                log.error("Error listing directory '%s': %s", path, error)
+                self.wfile.write(json.dumps({"error": error}).encode(encoding="utf_8"))
+                return
+
+            work_path = os.path.realpath(path)
+            content = []
+
+            dir_list = {
+                "current_dir": path,
+                "files": content,
+            }
+
+            # Add item '..'
+            if os.path.dirname(work_path) != work_path:
+                content.append({
+                    "type": "dir",
+                    "name": os.path.join(path, ".."),
+                    "last_modified": os.stat(os.path.join(path, "..")),
+                })
+
+            dir_contents = os.listdir(work_path)
+            dir_contents.sort()
+            for item in dir_contents:
+                item_path = os.path.join(path, item)
+                item_work_path = os.path.realpath(item_path)
+                st = os.stat(item_work_path)
+                item = {
+                    "type": "dir" if os.path.isdir(item_work_path) else "file",
+                    "name": os.path.join(path, item),
+                    "last_modified": st[stat.ST_MTIME],
+                }
+                if os.path.isfile(item_work_path):
+                    item["size"] = st[stat.ST_SIZE]
+                content.append(item)
+
+            # Send the JSON value.
+            self.wfile.write(json.dumps(dir_list).encode(encoding="utf_8"))
+        elif re.search("/ajax/fs_remove_file", self.path) is not None:
+            # Set the response headers.
+            self._set_headers(200)
+            # Get the JSON data.
+            data = self.rfile.read(int(self.headers["Content-Length"]))
+            path = json.loads(data.decode("utf-8")).get("path", None)
+
+            log.debug("Remove file: %s", path)
+
+            if not path or not os.path.exists(path):
+                error = "Invalid path" if not path else "No such file or directory"
+                log.error("Error removing file '%s': %s", path, error)
+                self.wfile.write(json.dumps({"error": error}).encode(encoding="utf_8"))
+                return
+
+            try:
+                os.remove(path)
+                self.wfile.write("{}".encode(encoding="utf_8"))
+            except OSError as e:
+                self.wfile.write(json.dumps({"error": e.strerror}).encode(encoding="utf_8"))
+                log.error("Error removing file '%s': %s", e.filename, e.strerror)
+                return
+
+        elif re.search("/ajax/fs_create_dir", self.path) is not None:
+            # Set the response headers.
+            self._set_headers(200)
+            # Get the JSON data.
+            data = self.rfile.read(int(self.headers["Content-Length"]))
+            path = json.loads(data.decode("utf-8")).get("directory", None)
+
+            log.debug("Create directory: %s", path)
+
+            if not path:
+                log.error("Error creating directory '%s': Invalid directory", path)
+                self.wfile.write(json.dumps({"error": "Invalid directory"}).encode(encoding="utf_8"))
+                return
+
+            try:
+                os.makedirs(path, exist_ok=True)
+            except OSError as e:
+                self.wfile.write(json.dumps({"error": e.strerror}).encode(encoding="utf_8"))
+                log.error("Error creating directory '%s': %s", path, e.strerror)
+                return
+
+            self.wfile.write("{}".encode(encoding="utf_8"))
+        elif re.search("/ajax/fs_download_file", self.path) is not None:
+            # Get the JSON data.
+            data = self.rfile.read(int(self.headers["Content-Length"]))
+            path = json.loads(data.decode("utf-8")).get("path", None)
+
+            log.debug("Download file: %s", path)
+
+            if not path:
+                self._set_headers(200)
+                log.error("Error downloading file '%s': Invalid path", path)
+                self.wfile.write(json.dumps({"error": "Invalid path"}).encode(encoding="utf_8"))
+                return
+
+            work_path = os.path.realpath(path)
+            try:
+                 with open(work_path, "rb") as f:
+                    contents = f.read()
+            except OSError as e:
+                self._set_headers(200)
+                log.error("Error downloading file '%s': %s", path, e.strerror)
+                self.wfile.write(json.dumps({"error": e.strerror}).encode(encoding="utf_8"))
+                return
+
+            self.send_response(200)
+            self.send_header("Content-type", "application/octet-stream")
+            self.end_headers()
+            self.wfile.write(contents)
+        elif re.search("/ajax/fs_upload_file", self.path) is not None:
+            # Set the response headers.
+            self._set_headers(200)
+            # Get the data.
+            ctype, pdict = cgi.parse_header(self.headers['content-type'])
+            if "boundary" in pdict:
+                pdict["boundary"] = pdict["boundary"].encode()
+            data = cgi.parse_multipart(self.rfile, pdict)
+            path = data.get("path", [None])[0]
+            f_data = data.get("file", [bytes()])[0]
+
+            log.debug("Upload file: %s", path)
+            if not path or os.path.exists(path):
+                error = "Invalid path" if not path else "File already exists"
+                log.error("Error uploading file '%s': %s", path, error)
+                self.wfile.write(json.dumps({"error": error}).encode(encoding="utf_8"))
+                return
+
+            work_path = os.path.realpath(path)
+            try:
+                with open(work_path, "xb") as f:
+                    f.write(f_data)
+                self.wfile.write("{}".encode(encoding="utf_8"))
+            except OSError as e:
+                log.error("Error uploading file '%s': %s", path, e.strerror)
+                self.wfile.write(json.dumps({"error": e.strerror}).encode(encoding="utf_8"))
         else:
             # Forbidden.
             self._set_headers(403)
diff --git a/connectcore-demo-example/index.html b/connectcore-demo-example/index.html
index dba65c5..96fe841 100644
--- a/connectcore-demo-example/index.html
+++ b/connectcore-demo-example/index.html
@@ -425,7 +425,7 @@ Digi Demo - Dashboard
                                                             <div class="filesystem-current-directory-label">Current dir:</div>
                                                             <div id="current_directory" class="filesystem-current-directory"></div>
                                                         </div>
-                                                        <div class="filesystem-toolbar-buttons-container">
+                                                        <div id="filesystem_toolbar_buttons_container" class="filesystem-toolbar-buttons-container">
                                                             <div id="filesystem_create_directory_button" class="filesystem-button fas fa-folder-plus fa-2x" onclick="openDirectoryNamePanel()" title="Create directory"></div>
                                                             <div id="filesystem_upload_file_button" class="filesystem-button fas fa-upload fa-2x" onclick="openFileBrowser()" title="Upload file"></div>
                                                             <div id="filesystem_download_file_button" class="filesystem-button fas fa-file-download fa-2x" onclick="downloadSelectedFile()" title="Download file"></div>
diff --git a/connectcore-demo-example/static/js/common.js b/connectcore-demo-example/static/js/common.js
index b394a4f..c869783 100644
--- a/connectcore-demo-example/static/js/common.js
+++ b/connectcore-demo-example/static/js/common.js
@@ -136,6 +136,8 @@ const ERROR_UNKNOWN_ERROR = "Unknown error";
 
 const PATH_IMAGES = "../static/images/";
 
+const PORT = "9090";
+
 String.prototype.format = function() {
     var formatted = this;
     for (var arg in arguments)
@@ -143,6 +145,20 @@ String.prototype.format = function() {
     return formatted;
 };
 
+// Returns the server address.
+function getServerAddress() {
+    var host = window.location.hostname;
+    if (!Boolean(host))
+        host = "127.0.0.1";
+
+    return host + ":" + PORT;
+}
+
+function is_local_access() {
+    var host = window.location.hostname;
+    return !Boolean(host) || host == "127.0.0.1" || host == "localhost";
+}
+
 // Shows/hides a front popup over the given background element.
 function showPopup(backElementID, frontElementID, visible) {
     // Initialize variables.
diff --git a/connectcore-demo-example/static/js/dashboard.js b/connectcore-demo-example/static/js/dashboard.js
index cf609ec..f1e9c47 100644
--- a/connectcore-demo-example/static/js/dashboard.js
+++ b/connectcore-demo-example/static/js/dashboard.js
@@ -60,8 +60,6 @@ const ID_WIFI_BT_PANEL_AREA = "wifi_bt_panel_area";
 const ID_WIFI_BT_PANEL_ARROW = "wifi_bt_panel_arrow";
 const ID_WIFI_BT_PANEL_ICON = "wifi_bt_panel_icon";
 
-const PORT = "9090";
-
 const IFACE_BT = "hci0/";
 const IFACE_ETHERNET = "eth0/";
 const IFACE_WIFI = "wlan0/";
@@ -1006,12 +1004,3 @@ function changeSampleRate() {
     // Navigate to management page.
     window.open("../management/?device_id=" + getDeviceID() + "&device_name=" + getDeviceName(), "_self");
 }
-
-// Returns the server address.
-function getServerAddress() {
-    var host = window.location.hostname;
-    if (!Boolean(host))
-        host = "127.0.0.1";
-
-    return host + ":" + PORT;
-}
diff --git a/connectcore-demo-example/static/js/file-system.js b/connectcore-demo-example/static/js/file-system.js
index f6d034a..b3d83d9 100644
--- a/connectcore-demo-example/static/js/file-system.js
+++ b/connectcore-demo-example/static/js/file-system.js
@@ -29,7 +29,9 @@ const ID_FILE_SYSTEM_ITEMS_HEADER = "filesystem_items_header";
 const ID_FILE_SYSTEM_LOADING = "filesystem_loading";
 const ID_FILE_SYSTEM_PANEL = "filesystem_panel";
 const ID_FILE_SYSTEM_REMOVE_FILE_BUTTON = "filesystem_remove_file_button";
+const ID_FILE_SYSTEM_UPLOAD_FILE_BUTTON = "filesystem_upload_file_button";
 const ID_FILE_SYSTEM_TOOLBAR = "filesystem_toolbar";
+const ID_FILE_SYSTEM_TOOLBAR_BUTTONS_CONTAINER = "filesystem_toolbar_buttons_container";
 const ID_FILE_TO_UPLOAD = "file_to_upload";
 
 const CLASS_FA_FILE = "fa-file";
@@ -98,6 +100,11 @@ function openFileSystem() {
     // Show the file system.
     var fileSystemContainer = document.getElementById(ID_FILE_SYSTEM_PANEL);
     fileSystemContainer.style.visibility = "visible";
+    if (is_local_access()) {
+        document.getElementById(ID_FILE_SYSTEM_DOWNLOAD_FILE_BUTTON).style.display = "none";
+        document.getElementById(ID_FILE_SYSTEM_UPLOAD_FILE_BUTTON).style.display = "none";
+        document.getElementById(ID_FILE_SYSTEM_TOOLBAR_BUTTONS_CONTAINER).style.width = "90px";
+    }
     // List root directory.
     listDirectory(ROOT_DIRECTORY);
 }
@@ -244,7 +251,7 @@ function listDirectory(directory) {
     showFileSystemLoading(true);
     // Send request.
     $.post(
-        "../ajax/fs_list_directory",
+        "http://" + getServerAddress() + "/ajax/fs_list_directory",
         JSON.stringify({
             "directory": path
         }),
@@ -333,7 +340,7 @@ function downloadFile(fileName) {
     // Send request
     $.ajax({
         type: 'POST',
-        url: "../ajax/fs_download_file",
+        url: "http://" + getServerAddress() + "/ajax/fs_download_file",
         data: data,
         cache: false,
         async: true,
@@ -436,7 +443,7 @@ function removeFile(fileName, isFile) {
     showFileSystemLoading(true);
     // Send request.
     $.post(
-        "../ajax/fs_remove_file",
+        "http://" + getServerAddress() + "/ajax/fs_remove_file",
         JSON.stringify({
             "path": path,
             "is_file": isFile
@@ -489,7 +496,7 @@ function uploadFile(file) {
     // Send request.
     $.ajax({
         type: 'POST',
-        url: "../ajax/fs_upload_file",
+        url: "http://" + getServerAddress() + "/ajax/fs_upload_file",
         data: formData,
         cache: false,
         async: true,
@@ -613,7 +620,7 @@ function createDirectory(directoryName) {
     showFileSystemLoading(true);
     // Send request.
     $.post(
-        "../ajax/fs_create_dir",
+        "http://" + getServerAddress() + "/ajax/fs_create_dir",
         JSON.stringify({
             "path": path
         }),