diff --git a/src/client/components/monitor/provider/custom.tsx b/src/client/components/monitor/provider/custom.tsx
index 71444c7..66dd1ca 100644
--- a/src/client/components/monitor/provider/custom.tsx
+++ b/src/client/components/monitor/provider/custom.tsx
@@ -1,9 +1,61 @@
-import { Button, Form } from 'antd';
+import { Button, Form, Modal } from 'antd';
 import React from 'react';
 import { MonitorProvider } from './types';
 import { CodeEditor } from '../../CodeEditor';
+import { defaultErrorHandler, trpc } from '../../../api/trpc';
+import { PlayCircleOutlined } from '@ant-design/icons';
+import { useCurrentWorkspaceId } from '../../../store/user';
+import { useEvent } from '../../../hooks/useEvent';
+import dayjs from 'dayjs';
+import { ColorTag } from '../../ColorTag';
 
 export const MonitorCustom: React.FC = React.memo(() => {
+  const workspaceId = useCurrentWorkspaceId();
+  const testScriptMutation = trpc.monitor.testCustomScript.useMutation({
+    onError: defaultErrorHandler,
+  });
+  const form = Form.useFormInstance();
+  const [modal, contextHolder] = Modal.useModal();
+
+  const handleTestCode = useEvent(async () => {
+    const { logger, result, usage } = await testScriptMutation.mutateAsync({
+      workspaceId,
+      code: form.getFieldValue(['payload', 'code']),
+    });
+
+    modal.info({
+      centered: true,
+      maskClosable: true,
+      title: 'Run Completed',
+      content: (
+        <div>
+          {logger.map(([type, time, ...args]) => (
+            <div className="mb-1">
+              {type === 'warn' ? (
+                <ColorTag label={type} colors={['orange']} />
+              ) : type === 'error' ? (
+                <ColorTag label={type} colors={['red']} />
+              ) : (
+                <ColorTag label={type} colors={['geekblue']} />
+              )}
+
+              <span className="mr-1 text-neutral-500">
+                {dayjs(time).format('HH:mm:ss')}
+              </span>
+
+              {args.join(' ')}
+            </div>
+          ))}
+
+          <div>Usage: {usage}ms</div>
+          <div>
+            Result: <span className="font-semibold">{result}</span>
+          </div>
+        </div>
+      ),
+    });
+  });
+
   return (
     <>
       <Form.Item
@@ -13,6 +65,14 @@ export const MonitorCustom: React.FC = React.memo(() => {
       >
         <CodeEditor height={320} />
       </Form.Item>
+      <Button
+        loading={testScriptMutation.isLoading}
+        icon={<PlayCircleOutlined />}
+        onClick={handleTestCode}
+      >
+        Test Code
+      </Button>
+      {contextHolder}
     </>
   );
 });
diff --git a/src/server/model/monitor/provider/custom.ts b/src/server/model/monitor/provider/custom.ts
index 39c1c91..52bb9d2 100644
--- a/src/server/model/monitor/provider/custom.ts
+++ b/src/server/model/monitor/provider/custom.ts
@@ -13,17 +13,18 @@ export const custom: MonitorProvider<{
 
     const { code } = monitor.payload;
 
-    const res = await runCodeInVM(code);
+    const { result } = await runCodeInVM(code);
 
-    if (typeof res !== 'number') {
+    if (typeof result !== 'number') {
       return -1;
     }
 
-    return res;
+    return result;
   },
 };
 
-async function runCodeInVM(_code: string) {
+export async function runCodeInVM(_code: string) {
+  const start = Date.now();
   const isolate = new ivm.Isolate({ memoryLimit: env.sandboxMemoryLimit });
 
   const code = `${environmentScript}\n\n;(async () => {${_code}})()`;
@@ -33,7 +34,21 @@ async function runCodeInVM(_code: string) {
     isolate.compileScript(code),
   ]);
 
-  buildSandbox(context);
+  const logger: any[][] = [];
+
+  buildSandbox(context, {
+    console: {
+      log: (...args: any[]) => {
+        logger.push(['log', Date.now(), ...args]);
+      },
+      warn: (...args: any[]) => {
+        logger.push(['warn', Date.now(), ...args]);
+      },
+      error: (...args: any[]) => {
+        logger.push(['error', Date.now(), ...args]);
+      },
+    },
+  });
 
   const res = await script.run(context, {
     promise: true,
@@ -42,5 +57,5 @@ async function runCodeInVM(_code: string) {
   context.release();
   script.release();
 
-  return res;
+  return { logger, result: res, usage: Date.now() - start };
 }
diff --git a/src/server/trpc/routers/monitor.ts b/src/server/trpc/routers/monitor.ts
index 0494215..38ea9e8 100644
--- a/src/server/trpc/routers/monitor.ts
+++ b/src/server/trpc/routers/monitor.ts
@@ -22,6 +22,7 @@ import {
 import { OPENAPI_TAG } from '../../utils/const';
 import { OpenApiMeta } from 'trpc-openapi';
 import { MonitorStatusPageModelSchema } from '../../../../prisma/zod';
+import { runCodeInVM } from '../../model/monitor/provider/custom';
 
 export const monitorRouter = router({
   all: workspaceProcedure
@@ -172,6 +173,22 @@ export const monitorRouter = router({
 
       return monitorManager.delete(workspaceId, monitorId);
     }),
+  testCustomScript: workspaceOwnerProcedure
+    .input(
+      z.object({
+        code: z.string(),
+      })
+    )
+    .output(
+      z.object({
+        logger: z.array(z.array(z.any())),
+        result: z.number(),
+        usage: z.number(),
+      })
+    )
+    .mutation(async ({ input }) => {
+      return runCodeInVM(input.code);
+    }),
   data: workspaceProcedure
     .meta(
       buildMonitorOpenapi({
diff --git a/src/server/utils/sandbox.ts b/src/server/utils/sandbox.ts
index 293df9b..bfa533e 100644
--- a/src/server/utils/sandbox.ts
+++ b/src/server/utils/sandbox.ts
@@ -125,11 +125,30 @@ function makeTransferable(data: any) {
     : new ivm.ExternalCopy(copyObject(data)).copyInto();
 }
 
-export function buildSandbox(context: Context) {
+interface SandboxGlobals {
+  console?: {
+    log: (...args: any[]) => void;
+    warn: (...args: any[]) => void;
+    error: (...args: any[]) => void;
+  };
+}
+
+const defaultSandboxGlobals = {
+  console: {
+    log: () => {},
+    warn: () => {},
+    error: () => {},
+  },
+};
+
+export function buildSandbox(context: Context, globals: SandboxGlobals = {}) {
   const jail = context.global;
   jail.setSync('global', jail.derefInto());
-  jail.setSync('ivm', ivm);
-  jail.setSync('console', makeTransferable(console));
+  jail.setSync('_ivm', ivm);
+  jail.setSync(
+    'console',
+    makeTransferable(globals.console ?? defaultSandboxGlobals)
+  );
   jail.setSync(
     '_request',
     new ivm.Reference(async (config: AxiosRequestConfig) => {
@@ -153,7 +172,7 @@ const reproxy = (reference) => {
 
       const data = reference.get(p);
 
-      if (typeof data === 'object' && data instanceof ivm.Reference && data.typeof === 'function') {
+      if (typeof data === 'object' && data instanceof _ivm.Reference && data.typeof === 'function') {
         return (...args) => data.apply(undefined, args, { arguments: { copy: true }, result: { promise: true } });
       }