diff --git a/dap-gateway/src/main/resources/static/tester.html b/dap-gateway/src/main/resources/static/tester.html
index 42f22c4e..2de91b23 100644
--- a/dap-gateway/src/main/resources/static/tester.html
+++ b/dap-gateway/src/main/resources/static/tester.html
@@ -227,6 +227,29 @@
         </div>
     </div>
 
+    <!-- Modal for JSON Export -->
+    <div id="jsonExportModal" class="modal-overlay">
+        <div class="modal-content">
+            <div class="modal-header">
+                <div>
+                    <h3 class="text-lg font-semibold text-white">Tools List JSON</h3>
+                    <p class="text-sm text-zinc-400">Complete tools list in JSON format</p>
+                </div>
+                <button onclick="closeJsonExportModal()" class="text-zinc-400 hover:text-white">&times;</button>
+            </div>
+            <div class="modal-body">
+                <textarea id="jsonExportViewer" class="code-textarea" readonly></textarea>
+            </div>
+            <div class="modal-footer">
+                <div class="flex-grow flex gap-2">
+                    <button class="btn-sm" onclick="copyJsonExport()">Copy to Clipboard</button>
+                    <button class="btn-sm" onclick="downloadJsonExport()">Download File</button>
+                </div>
+                <button onclick="closeJsonExportModal()" class="btn-sm py-2 px-4">Close</button>
+            </div>
+        </div>
+    </div>
+
     <script>
         let allTools = [];
         let filteredTools = [];
@@ -896,7 +919,6 @@
                 alert("No tools loaded.");
                 return;
             }
-            // original tools array without the temp properties added for testing
             const cleanTools = allTools.map(t => {
                 const clean = { ...t };
                 delete clean._customPayload;
@@ -908,7 +930,24 @@
                 return clean;
             });
             const jsonContent = JSON.stringify({ tools: cleanTools }, null, 2);
-            const blob = new Blob([jsonContent], { type: 'application/json' });
+            document.getElementById('jsonExportViewer').value = jsonContent;
+            document.getElementById('jsonExportModal').style.display = 'flex';
+        }
+        
+        function closeJsonExportModal() {
+            document.getElementById('jsonExportModal').style.display = 'none';
+        }
+        
+        function copyJsonExport() {
+            const viewer = document.getElementById('jsonExportViewer');
+            navigator.clipboard.writeText(viewer.value).then(() => {
+                alert("JSON copied to clipboard!");
+            });
+        }
+        
+        function downloadJsonExport() {
+            const viewer = document.getElementById('jsonExportViewer');
+            const blob = new Blob([viewer.value], { type: 'application/json' });
             const url = URL.createObjectURL(blob);
             const link = document.createElement("a");
             link.setAttribute("href", url);