block-inspect

A lightweight, zero-dependency JavaScript utility to deter users from inspecting your website using browser developer tools, right-click, or clipboard interactions.

⚠️ Note: Possible to bypass this using advanced measures.

Features

• ❌ Disable right-click context menu
• ❌ Block DevTools shortcuts (F12, Ctrl+Shift+I/J/U, Cmd+Opt+I/J/U, etc.)
• ❌ Optional: Block copy, cut, paste
• ❌ Optional: Disable text selection
• 🔁 New: Redirect page if DevTools are opened (URL or "back")
• ✅ Optional callback on inspection attempts
• ✅ Whitelist specific key combos (e.g., "Ctrl+R" for refresh)
• ✅ Dynamic enable/disable
• ✅ No dependencies

Installation

npm install block-inspect

Usage

ES Modules

import blockInspect from 'block-inspect';

// Default
blockInspect();

// Custom options
blockInspect({
  disableContextMenu: true,
  disableDevToolsShortcut: true,
  disableSelection: true,
  disableCopy: true,
  disableCut: true,
  disablePaste: true,
  allowedKeys: ['Ctrl+R', 'Meta+R', 'F5'],
  onInspectAttempt: () => {
    alert('Inspect attempt blocked!');
  },
  // Redirect if DevTools open or shortcut is blocked:
  // - Use a URL to redirect to another page
  // - Or use "back" to navigate to previous page
  redirectOnInspect: 'https://example.com/warning.html'
  // redirectOnInspect: 'back',
});

Stop, Resume, Update

blockInspect.stop(); // Disable
blockInspect.isActive(); // Check status
blockInspect.updateOptions({ disablePaste: false }); // Modify while active