diff --git a/README.md b/README.md
index f6ef260..2e8c29c 100644
--- a/README.md
+++ b/README.md
@@ -198,7 +198,7 @@ NODE_CLASS_MAPPINGS.update({
 - [x] Specification scanner
 - [x] workflow download -> workflow gallery
 - [x] Search extension by node name -> [ltdrdata.github.io](https://ltdrdata.github.io)
-- [ ] installation from git url
+- [x] installation from git url
 
 
 # Disclaimer
diff --git a/__init__.py b/__init__.py
index 40943d8..6539acb 100644
--- a/__init__.py
+++ b/__init__.py
@@ -11,8 +11,9 @@ import subprocess  # don't remove this
 from tqdm.auto import tqdm
 import concurrent
 import ssl
+from urllib.parse import urlparse
 
-version = "V0.41"
+version = "V0.42"
 print(f"### Loading: ComfyUI-Manager ({version})")
 
 
@@ -990,10 +991,20 @@ class GitProgress(RemoteProgress):
         self.pbar.pos = 0
         self.pbar.refresh()
 
+def is_valid_url(url):
+    try:
+        result = urlparse(url)
+        return all([result.scheme, result.netloc])
+    except ValueError:
+        return False
 
 def gitclone_install(files):
     print(f"install: {files}")
     for url in files:
+        if not is_valid_url(url):
+            print(f"Invalid git url: '{url}'")
+            return False
+
         if url.endswith("/"):
             url = url[:-1]
         try:
@@ -1003,7 +1014,9 @@ def gitclone_install(files):
 
             # Clone the repository from the remote URL
             if platform.system() == 'Windows':
-                run_script([sys.executable, git_script_path, "--clone", custom_nodes_path, url])
+                res = run_script([sys.executable, git_script_path, "--clone", custom_nodes_path, url])
+                if res != 0:
+                    return False
             else:
                 repo = git.Repo.clone_from(url, repo_path, recursive=True, progress=GitProgress())
                 repo.git.clear_cache()
@@ -1196,6 +1209,20 @@ async def install_custom_node(request):
     return web.Response(status=400)
 
 
+@server.PromptServer.instance.routes.get("/customnode/install/git_url")
+async def install_custom_node_git_url(request):
+    res = False
+    if "url" in request.rel_url.query:
+        url = request.rel_url.query['url']
+        res = gitclone_install([url])
+
+    if res:
+        print(f"After restarting ComfyUI, please refresh the browser.")
+        return web.Response(status=200)
+
+    return web.Response(status=400)
+
+
 @server.PromptServer.instance.routes.post("/customnode/uninstall")
 async def uninstall_custom_node(request):
     json_data = await request.json()
diff --git a/js/comfyui-manager.js b/js/comfyui-manager.js
index 4a227d2..d4ddf46 100644
--- a/js/comfyui-manager.js
+++ b/js/comfyui-manager.js
@@ -5,7 +5,7 @@ import { CustomNodesInstaller } from "./custom-nodes-downloader.js";
 import { AlternativesInstaller } from "./a1111-alter-downloader.js";
 import { SnapshotManager } from "./snapshot.js";
 import { ModelInstaller } from "./model-downloader.js";
-import { manager_instance, setManagerInstance } from  "./common.js";
+import { manager_instance, setManagerInstance, install_via_git_url } from  "./common.js";
 
 var style = document.createElement('style');
 style.innerHTML = `
@@ -372,6 +372,17 @@ class ManagerMenuDialog extends ComfyDialog {
 						SnapshotManager.instance.show();
 					}
 			}),
+			$el("button", {
+				type: "button",
+				textContent: "Install via Git URL",
+				onclick: () => {
+					var url = prompt("Please enter the URL of the Git repository to install", "");
+
+					if (url !== null) {
+						install_via_git_url(url);
+					}
+				}
+			}),
 		];
 	}
 
diff --git a/js/common.js b/js/common.js
index b556269..175522d 100644
--- a/js/common.js
+++ b/js/common.js
@@ -59,4 +59,35 @@ export var manager_instance = null;
 
 export function setManagerInstance(obj) {
     manager_instance = obj;
+}
+
+function isValidURL(url) {
+    const pattern = /^(https?|ftp):\/\/[^\s/$.?#].[^\s]*$/;
+    return pattern.test(url);
+}
+
+export async function install_via_git_url(url) {
+	if(!url) {
+		return;
+	}
+
+	if(!isValidURL(url)) {
+        app.ui.dialog.show(`Invalid Git url '${url}'`);
+        app.ui.dialog.element.style.zIndex = 10010;
+		return;
+	}
+
+    app.ui.dialog.show(`Wait...<BR><BR>Installing '${url}'`);
+    app.ui.dialog.element.style.zIndex = 10010;
+
+    const res = await api.fetchApi(`/customnode/install/git_url?url=${url}`);
+
+    if(res.status == 200) {
+        app.ui.dialog.show(`'${url}' is installed<BR>To apply the installed/disabled/enabled custom node, please restart ComfyUI.`);
+        app.ui.dialog.element.style.zIndex = 10010;
+    }
+    else {
+        app.ui.dialog.show(`Failed to install '${url}'<BR>See terminal log.`);
+        app.ui.dialog.element.style.zIndex = 10010;
+    }
 }
\ No newline at end of file