diff --git a/addons/cetmix_tower_server/models/tools.py b/addons/cetmix_tower_server/models/tools.py
new file mode 100644
index 0000000..a2475c4
--- /dev/null
+++ b/addons/cetmix_tower_server/models/tools.py
@@ -0,0 +1,75 @@
+# Copyright (C) 2022 Cetmix OÜ
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+from random import choices
+from urllib.parse import urlparse
+
+CHARS = "23456789acefhjkmnprtvwxyz"
+
+
+def generate_random_id(sections=1, population=4, separator="-"):
+    """Generates random id
+        eg 'ahj2-jer83'
+
+    Args:
+        sections (int, optional): number of sections. Defaults to 1.
+        population (int, optional): number of symbols per section. Defaults to 4.
+        separator (str, optional): section separator. Defaults to "-".
+
+    Returns:
+        Str: generated id
+    """
+    if sections < 1 or population < 0:
+        return None
+
+    def get_section():
+        return "".join(choices(CHARS, k=population))
+
+    # Single section
+    if sections == 1:
+        return get_section()
+
+    # Multiple sections
+    result = []
+    for _ in range(sections):
+        result.append(get_section())
+
+    return separator.join(result)
+
+
+def is_valid_url(url: str, no_scheme_check: bool = False) -> bool:
+    """Check if a URL is valid.
+
+    Args:
+        url (str): URL to check
+        no_scheme_check (bool, optional):
+            If True, the scheme check will be skipped.
+            Defaults to False.
+    Returns:
+        bool: True if URL is valid, False otherwise
+    """
+    if not url:
+        return False
+
+    # Add dummy scheme if missing so urlparse works
+    if no_scheme_check:
+        if "://" not in url:
+            url = "http://" + url
+
+    parsed = urlparse(url)
+
+    # Must have a domain or IP
+    if not parsed.netloc:
+        return False
+
+    # Basic domain validation (at least one dot OR localhost OR IP)
+    host = parsed.hostname
+    if not host:
+        return False
+
+    if host in ("localhost", "::1"):
+        return True
+
+    if "." in host or ":" in host:
+        return True
+
+    return False