diff --git a/cmd/gf/internal/cmd/cmddep/cmddep_output.go b/cmd/gf/internal/cmd/cmddep/cmddep_output.go
index 408d4d60e..d58b40bf2 100644
--- a/cmd/gf/internal/cmd/cmddep/cmddep_output.go
+++ b/cmd/gf/internal/cmd/cmddep/cmddep_output.go
@@ -34,11 +34,15 @@ func (a *analyzer) generate(in Input) string {
 // generateTree generates ASCII tree output.
 func (a *analyzer) generateTree(in Input) string {
 	var sb strings.Builder
-	pkgs := a.getSortedPackages()
 
-	for _, pkgPath := range pkgs {
+	// Find root packages (packages that are not imported by any other package)
+	rootPkgs := a.findRootPackages()
+
+	// Use a single visited map across all root packages to avoid duplicates
+	a.visited = make(map[string]bool)
+
+	for _, pkgPath := range rootPkgs {
 		pkg := a.packages[pkgPath]
-		a.visited = make(map[string]bool)
 		shortName := a.shortName(pkg.ImportPath, in.Group)
 		sb.WriteString(shortName + "\n")
 		a.printTreeNode(&sb, pkg, "", in, 0)
@@ -46,6 +50,33 @@ func (a *analyzer) generateTree(in Input) string {
 	return sb.String()
 }
 
+// findRootPackages finds packages that are not imported by any other internal package.
+func (a *analyzer) findRootPackages() []string {
+	// Build a set of all imported packages
+	imported := make(map[string]bool)
+	for _, pkg := range a.packages {
+		for _, dep := range pkg.Imports {
+			imported[dep] = true
+		}
+	}
+
+	// Find packages that are not imported by others
+	roots := make([]string, 0)
+	for pkgPath := range a.packages {
+		if !imported[pkgPath] {
+			roots = append(roots, pkgPath)
+		}
+	}
+
+	// If no roots found (circular dependencies), use all packages
+	if len(roots) == 0 {
+		roots = a.getSortedPackages()
+	}
+
+	sort.Strings(roots)
+	return roots
+}
+
 func (a *analyzer) printTreeNode(sb *strings.Builder, pkg *goPackage, prefix string, in Input, depth int) {
 	if in.Depth > 0 && depth >= in.Depth {
 		return
diff --git a/cmd/gf/internal/cmd/cmddep/static/app.js b/cmd/gf/internal/cmd/cmddep/static/app.js
index bcd854b31..4918b5d23 100644
--- a/cmd/gf/internal/cmd/cmddep/static/app.js
+++ b/cmd/gf/internal/cmd/cmddep/static/app.js
@@ -6,7 +6,7 @@ let selectedPackage = null;
 let allPackages = [];
 let isRemoteMode = false;
 let currentRemoteModule = '';
-let packageListMode = 'flat'; // 'flat' or 'tree'
+let packageListMode = 'tree'; // 'flat' or 'tree'
 let expandedNodes = new Set(); // Track expanded tree nodes
 
 // Pan and Zoom state
@@ -94,9 +94,11 @@ async function init() {
     theme.init();
     initPanZoom();
     initRemoteModuleInput();
-    await loadModuleName();
-    await loadPackages();
-    await refresh();
+    const hasLocalModule = await loadModuleName();
+    if (hasLocalModule) {
+        await loadPackages();
+        await refresh();
+    }
 }
 
 // Initialize remote module input
@@ -376,21 +378,28 @@ function showZoomIndicator() {
 }
 
 // Load module name from server
+// Returns true if local module exists, false otherwise
 async function loadModuleName() {
     try {
         const response = await fetch('/api/module');
         const data = await response.json();
         document.getElementById('moduleName').textContent = data.name || '';
         
-        // If no local module, set default value for remote module input
+        // If no local module, set default value and auto-analyze
         if (!data.name) {
             const input = document.getElementById('remoteModuleInput');
             if (input && !input.value) {
                 input.value = 'github.com/gogf/gf/v2';
+                // Fetch versions first, then auto-analyze
+                await fetchVersions();
+                analyzeRemoteModule();
             }
+            return false;
         }
+        return true;
     } catch (e) {
         console.error('Failed to load module name:', e);
+        return false;
     }
 }
 
@@ -566,14 +575,14 @@ function toggleTreeNode(path) {
     
     // Re-render with current filter
     const query = document.getElementById('searchInput').value.toLowerCase();
-    const filtered = query ? allPackages.filter(pkg => pkg.toLowerCase().includes(query)) : allPackages;
+    const filtered = query ? allPackages.filter(pkg => getPkgName(pkg).toLowerCase().includes(query)) : allPackages;
     renderPackageList(filtered);
 }
 
 // Filter packages by search query
 function filterPackages() {
     const query = document.getElementById('searchInput').value.toLowerCase();
-    const filtered = allPackages.filter(pkg => pkg.toLowerCase().includes(query));
+    const filtered = allPackages.filter(pkg => getPkgName(pkg).toLowerCase().includes(query));
     renderPackageList(filtered);
 }
 
diff --git a/cmd/gf/internal/cmd/cmddep/static/index.html b/cmd/gf/internal/cmd/cmddep/static/index.html
index 3026bbaa5..742aad7ac 100644
--- a/cmd/gf/internal/cmd/cmddep/static/index.html
+++ b/cmd/gf/internal/cmd/cmddep/static/index.html
@@ -87,8 +87,8 @@
                     <span class="count" id="packageCount">0</span>
                 </div>
                 <div class="sidebar-mode">
-                    <button class="mode-btn active" id="modeFlat" onclick="setPackageListMode('flat')" title="Flat list">☰</button>
-                    <button class="mode-btn" id="modeTree" onclick="setPackageListMode('tree')" title="Tree view">🌲</button>
+                    <button class="mode-btn" id="modeFlat" onclick="setPackageListMode('flat')" title="Flat list">☰</button>
+                    <button class="mode-btn active" id="modeTree" onclick="setPackageListMode('tree')" title="Tree view">🌲</button>
                 </div>
             </div>
             <div class="search-box">
diff --git a/cmd/gf/internal/cmd/cmddep/static/style.css b/cmd/gf/internal/cmd/cmddep/static/style.css
index 18e6c74a6..500129af6 100644
--- a/cmd/gf/internal/cmd/cmddep/static/style.css
+++ b/cmd/gf/internal/cmd/cmddep/static/style.css
@@ -112,7 +112,7 @@ body {
 }
 
 .remote-input-group input[type="text"] {
-    width: 260px;
+    width: 320px;
     background: var(--input-bg);
     border: 1px solid var(--input-border);
     color: var(--text-primary);
@@ -128,7 +128,7 @@ body {
 }
 
 .remote-input-group select {
-    width: 120px;
+    width: 160px;
     background: var(--input-bg);
     border: 1px solid var(--input-border);
     color: var(--text-primary);