Read the essentials
Selector, dimensions, display, position, type, color, background, spacing, border, radius, and shadow.
Website style inspector
Understand how a live page is styled.
CascadePeek is a narrow Chrome extension for reading the styles behind buttons, cards, nav bars, pricing sections, and product UI without leaving the page.
Pin and compare
Freeze one element while you inspect nearby siblings, parents, and children with keyboard navigation.
Copy snippets
Copy selector, CSS, and HTML in the free tier. Upgrade for rules, tokens, editing, and component copy.
Stay local
Page inspection happens locally after you click the toolbar icon. Servers are only used for checkout and license activation.