Drag any button to your bookmarks bar to install. Click to preview what each tool does.
Simulate slow CPU for testing
Opens a control panel to throttle CPU performance. Useful for testing how your app behaves on slower devices.
⚡ CPU Throttle PanelPaste URL to watch
Creates a floating YouTube player. Paste any YouTube URL and watch in a draggable mini window.
🎬 YouTube Mini PiP (URL)Search and watch YouTube
Search YouTube directly from any page and watch videos in a floating mini player without leaving your current tab.
🔍 YouTube Mini PiP (Search)Freeze your webcam feed
Creates a virtual camera that can freeze your video feed. Useful for video calls when you need to step away briefly.
🎥 Virtual Camera FreezeAdd entries to browser history
Opens a panel to flood browser history with custom entries using pushState. Useful for testing or privacy purposes.
📜 History Flood PanelPage in Picture-in-Picture
Opens the current page in a Picture-in-Picture window that auto-scales as you resize. Requires Chrome 116+ or Edge 116+.
🔲 Interactive Zoomable PiPChange tab title & icon
Opens a modal to customize the current tab's title and favicon. Choose from emoji icons or use a custom URL.
🎨 Tab CustomizerCapture area to clipboard
Select any area on the page and instantly copy it to your clipboard as an image. Perfect for quick screenshots.
📸 Screenshot & CopyScreenshot & get AI answers
Select any area on screen and get AI-powered answers. Great for homework help, code explanations, and more. Requires Groq API key.
🎓 AI Helper💡 Tip: These bookmarklets work on most websites. Some may have limited functionality on sites with strict Content Security Policies.