diff --git a/scripts/tag.py b/scripts/tag.py
new file mode 100755
index 000000000..27c280a5d
--- /dev/null
+++ b/scripts/tag.py
@@ -0,0 +1,85 @@
+#!/usr/bin/env python3
+from __future__ import annotations
+
+import argparse
+import re
+import subprocess
+import sys
+from pathlib import Path
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(
+        description=(
+            "Read gns3server/version.py, extract __version__, and create an annotated git tag."
+        )
+    )
+    parser.add_argument(
+        "--dry-run",
+        action="store_true",
+        help="Show the tag that would be created without creating it",
+    )
+    return parser.parse_args()
+
+
+def run_git(args: list[str], repo_root: Path) -> subprocess.CompletedProcess[str]:
+    return subprocess.run(
+        ["git", *args],
+        cwd=repo_root,
+        check=False,
+        capture_output=True,
+        text=True,
+    )
+
+
+def get_version(repo_root: Path) -> str:
+    version_file = repo_root / "gns3server" / "version.py"
+    content = version_file.read_text(encoding="utf-8")
+    match = re.search(r"^__version__\s*=\s*['\"]([^'\"]+)['\"]", content, re.MULTILINE)
+    if not match:
+        raise ValueError("Unable to find __version__ in gns3server/version.py")
+    return match.group(1)
+
+
+def main() -> int:
+    args = parse_args()
+    repo_root = Path(__file__).resolve().parent.parent
+
+    inside_repo = run_git(["rev-parse", "--is-inside-work-tree"], repo_root)
+    if inside_repo.returncode != 0:
+        print(f"Error: {repo_root} is not a git repository.", file=sys.stderr)
+        return 1
+
+    try:
+        tag = 'v' + get_version(repo_root)
+    except (OSError, ValueError) as exc:
+        print(f"Error: {exc}", file=sys.stderr)
+        return 1
+
+    existing_tag = run_git(["rev-parse", tag], repo_root)
+    if existing_tag.returncode == 0:
+        print(f"Error: tag '{tag}' already exists.", file=sys.stderr)
+        return 1
+
+    if args.dry_run:
+        print(f"Dry run: would create tag '{tag}' from gns3server/version.py")
+        return 0
+
+    create_tag = run_git(["tag", "-a", tag, "-m", f"Release {tag}"], repo_root)
+    if create_tag.returncode != 0:
+        print(create_tag.stderr.strip() or "Error: failed to create tag", file=sys.stderr)
+        return 1
+    print(f"Created tag '{tag}'")
+
+    push_tag = run_git(["push", "origin", tag], repo_root)
+    if push_tag.returncode != 0:
+        print(push_tag.stderr.strip() or "Error: failed to push tag", file=sys.stderr)
+        return 1
+    print(f"Tag '{tag}' has been pushed to the remote repository.")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
+
+