Installation

CSSBite is a free Chrome extension. Install it in one click from the Chrome Web Store.

1

Visit the Chrome Web Store

Go to the CSSBite listing and click "Add to Chrome".

2

Confirm the permissions

Chrome will ask you to confirm. CSSBite only needs: activeTab (read the current page), scripting (inject the selector), and storage (save your settings and library).

3

Pin it to your toolbar

Click the puzzle icon in Chrome's toolbar and pin CSSBite for quick access. You're ready to go.

Quick Start

Extract your first component in under 10 seconds:

1

Activate

Click the CSSBite icon or press Ctrl+Shift+G (Cmd+Shift+G on Mac). A status bar appears at the bottom of the page.

2

Hover

Move your mouse over the page. CSSBite highlights components with a blue overlay. The tooltip shows the element's tag, size, fonts, and colors.

3

Click

Click to extract. A new tab opens with your code — HTML, CSS, React, Vue, Svelte, Tailwind, and more. All ready to copy.

Tip: Use Shift+Scroll to expand/shrink the selection and Arrow Keys to navigate the DOM tree precisely.

Keyboard Shortcuts

Master these shortcuts to work faster than ever.

Shortcut	Action	Details
`Ctrl+Shift+G`	Activate selector	Opens the CSSBite selector on the current page. On Mac, use `Cmd+Shift+G`.
`Click`	Select component	Captures the highlighted component — HTML, CSS, fonts, preview, and all framework formats.
`Shift + Scroll`	Resize selection	Scroll up to select the parent (bigger). Scroll down to go to a child (smaller). Fine-tune the component boundary.
`↑ ↓ ← →`	Navigate DOM	Up = parent element. Down = first child. Left/Right = previous/next sibling. Precise DOM tree navigation.
`C`	Copy styles	Press while hovering to instantly copy that element's computed CSS to your clipboard. No extraction needed.
`Alt`	Measure mode	Hold Alt and hover between elements to see pixel distances with red guide lines. Like Figma's spacing tool.
`Esc`	Exit selector	Removes all CSSBite overlays and returns to normal browsing.

Smart Component Detection

CSSBite doesn't just select whatever element your mouse is on. It uses intelligent detection to snap to the nearest meaningful component.

How it works

Semantic HTML tags — Automatically recognizes <section>, <article>, <nav>, <header>, <footer>, <main>, and <aside>.
ARIA roles — Detects role="banner", role="navigation", role="region", etc.
Class name patterns — Recognizes common naming: hero, card, container, wrapper, sidebar, and more.
Size heuristics — Elements must be at least 100px wide and 60px tall with 2+ children to qualify as a component.
Page-level blocking — Prevents selecting <html> or <body> which would produce unusable output.

Tip: If the auto-detection selects the wrong level, use Shift+Scroll to go up (parent) or down (child) until you have the right component.

Code Extraction

When you click to select a component, CSSBite runs a complete extraction pipeline:

HTML Cleaning — Strips framework-specific attributes (React data attrs, Vue scoped IDs, Angular directives, Elementor data blobs), event handlers, testing IDs, and tracking attributes. Keeps semantic class names and meaningful attributes.
CSS Extraction — Walks the element tree and collects all computed CSS properties. Builds scoped CSS rules that only apply to your component — no global styles leaking in.
Font Detection — Identifies Google Fonts, Adobe TypeKit, and custom @font-face rules. Downloads actual font files and embeds them as base64 so the preview renders with correct typography.
Orphan Class Removal — Removes HTML class names that have no matching CSS rules, keeping the code clean.
Framework Conversion — Generates React JSX (class→className, style objects), Vue SFC (<template> + <style scoped>), Svelte, Styled Components, CSS Modules, and Tailwind conversions.
Preview Building — Clones the element, inlines all styles, removes hidden content, and embeds fonts to create a pixel-perfect preview.

9 Export Formats

Every extraction produces code in 9 formats. Switch between them using the tabs in the results panel.

Format	What you get	Best for
HTML	Clean, semantic HTML with meaningful class names	Static sites, email templates
CSS	Scoped CSS rules with font imports	Any project — pair with HTML tab
Combined	Complete standalone HTML file with embedded CSS and fonts	Quick prototypes, sharing, downloading
React JSX	class→className, style objects, self-closing tags, camelCase attrs	React, Next.js, Remix projects
Vue SFC	<template> + <script setup> + <style scoped>	Vue 3, Nuxt projects
Svelte	<style> block + HTML markup	Svelte, SvelteKit projects
Styled Components	styled.tag`` definitions + React component	CSS-in-JS React projects
CSS Modules	.module.css file + JSX with styles.className	Modular CSS approaches
Tailwind	Utility classes (preserves original if site uses Tailwind)	Tailwind CSS projects

Live Preview

The preview panel renders your extracted component inside an iframe with the original website's background color, fonts, and inherited text styles.

Features

Responsive slider — Drag from 280px to 1440px to test how the component looks at any viewport width.
Font embedding — Google Fonts and custom @font-face rules are downloaded and embedded so text renders exactly like the original.
Background matching — CSSBite walks up the DOM to find the effective background color and applies it to the preview.
Full preview — Click the expand button to open the preview in a new browser tab at full size.

Design Inspector

Below the code panel, four tabs show extracted design tokens from your component:

Colors — Every color used (text, background, border, shadow, gradient) as hex swatches with usage count. Click to copy.
Typography — Font families, sizes, weights, line heights, and letter spacing. Sample text preview for each combination.
Assets — All images, SVGs, and videos with dimensions and source URLs. Click to preview.
Spacing — Padding and margin values for every side of the root element, displayed as a visual box model.

Measure Mode

Hold the Alt key while the selector is active to enter measure mode — works just like the spacing tool in Figma or Sketch.

How to use

Activate the selector (Ctrl+Shift+G)
Click on an element to anchor it
Hold Alt and hover over another element
Red guide lines appear showing the exact pixel distance between the two elements

Use this to check spacing consistency, verify design specs, or understand how a layout is structured before extracting it.

Copy Styles on Hover

Press C while hovering over any element to instantly copy its computed CSS to your clipboard.

This works on any element — you don't need to extract the whole component. Just hover over the element you're interested in, press C, and paste the styles into your project. A toast notification confirms the copy.

The copied styles include all computed properties: colors, fonts, spacing, borders, shadows, display, flex, and grid values.

Component Library

Save any extracted component to your personal library for later use.

Features

Save with custom name — Click "Save" in the toolbar and give your component a descriptive name.
Browse and search — Open the library panel to see all saved components. Scroll through or search by name.
Reload and view — Click any saved component to reload its code, preview, and design tokens.
Export as JSON — Download your entire library as a JSON file for backup or sharing.
Import — Import a previously exported library to restore components or merge with your current library.
Persistent storage — Components are saved in Chrome's local storage and persist across browser sessions.

CodePen Export

One click creates a new CodePen with your extracted HTML and CSS, preserving fonts and background for full visual parity.

Use cases:

Iterate on the design in a live coding environment
Share a working prototype with clients or teammates
Embed a live demo in documentation or blog posts
Test modifications without affecting your project

Accessibility Audit

Click the "A11y" button in the toolbar to run an instant accessibility check on your extracted component.

What it checks

Missing alt text — Images without alt attributes
Heading hierarchy — Skipped heading levels (h1 → h3)
Color contrast — Text that may be hard to read against its background
ARIA attributes — Missing or incorrect roles and labels
Keyboard navigation — Interactive elements that aren't keyboard-accessible

Each issue shows the severity level (error, warning, info) and which element is affected.

PRO — Coming Soon

Animation Extraction

CSSBite Pro automatically detects and captures CSS animations and transitions from any component you select.

What it captures

Complete @keyframes rule definitions
animation shorthand properties (name, duration, timing, delay, count, direction)
transition properties on all elements in the component tree

How it works

After extracting the component's base CSS, CSSBite Pro walks the page's stylesheets to find any @keyframes rules whose names match the animation-name property on elements in your selection. These keyframe blocks are prepended to the CSS output so the animation works when you copy it.

PRO — Coming Soon

Pseudo-element Support

Extracts ::before and ::after computed styles that are normally invisible in the DOM inspector.

What it captures

For every element in your selection, CSSBite Pro calls getComputedStyle(el, '::before') and getComputedStyle(el, '::after'). If the content property is not none, it extracts all relevant CSS properties — positioning, dimensions, colors, backgrounds, borders, shadows, and transforms.

The result is added to your CSS output as .classname::before { ... } rules.

PRO — Coming Soon

Hover, Focus & Active States

Captures interactive CSS states that only appear when the user interacts with an element.

What it captures

:hover — Color changes, shadows, transforms on mouse hover
:focus — Outline styles, border changes for keyboard navigation
:active — Pressed/clicked state styles
:focus-visible — Focus ring for keyboard-only navigation

How it works

CSSBite Pro walks the page's stylesheets and finds CSS rules with pseudo-class selectors that match elements in your selection. The matched selectors are mapped to your component's clean class names and appended to the CSS output.

PRO — Coming Soon

SCSS & LESS Output

Two new tabs in the code panel that convert your extracted CSS to preprocessor syntax.

SCSS

Flat CSS → nested selectors (.card .title { } → .card { .title { } })
Repeated colors extracted as $variables
Ready to drop into any SCSS project

LESS

Same nesting and variable extraction, using @variable syntax

The conversion is lazy — it only runs when you click the SCSS or LESS tab, and the result is cached so switching back is instant.

PRO — Coming Soon

Design Token Export

Turn your extracted colors, typography, and spacing into structured design tokens in four formats:

CSS Custom Properties — :root { --color-primary: #e94560; }
JSON — Design token format compatible with Style Dictionary and design tools
Tailwind Config — Ready to paste into tailwind.config.js theme extensions
SCSS Variables — $color-primary: #e94560;

Access via the "Tokens" tab in the design panel. Select your format from the dropdown, copy with one click.

PRO — Coming Soon

AI Class Renaming

Transforms obfuscated class names into readable semantic names using local heuristics.

Before

<nav class="sc-bdVTJa css-1a2b3c">

After

<nav class="main-navigation">

How it works

CSSBite Pro analyzes each element's tag name, ARIA role, content, DOM position, and layout to infer a meaningful name. The renaming is applied to both HTML and CSS simultaneously so everything stays consistent. Click "Rename" in the toolbar to apply.

PRO — Coming Soon

AI Code Cleanup

Restructures messy HTML into cleaner, more semantic markup.

What it does

Replaces <div role="navigation"> with <nav>
Removes redundant wrapper divs that add no styling
Sorts CSS properties alphabetically within each rule
Merges duplicate CSS rules

Click "Cleanup" in the toolbar. The changes are applied to the code in the current tab.

PRO — Coming Soon

Auto Responsive

Generates media queries for tablet and mobile breakpoints automatically.

Rules

Flex rows with many children → stack vertically on mobile
Grid with multiple columns → single column on mobile
Fixed widths > 400px → width: 100% on mobile
Large font sizes → scaled down proportionally
Large padding → reduced on mobile

Click "Responsive" in the toolbar. Media queries are appended to the CSS tab at @media (max-width: 768px) and @media (max-width: 480px).

PRO — Coming Soon

Performance Audit

Scans your extracted CSS and HTML for performance issues and shows actionable suggestions.

What it checks

Expensive CSS: large box-shadow spreads, filter: blur(), backdrop-filter
!important overuse
Overly specific selectors (> 4 parts)
Deep DOM nesting
Inline styles that should be classes
Fixed positioning creating unnecessary compositing layers

PRO — Coming Soon

Full Page Capture

Capture an entire website — not just one component. CSSBite Pro scrolls through the page, captures each viewport, and stitches them into one tall screenshot.

How to use

Click the CSSBite extension icon
Click "Capture Full Page"
CSSBite scrolls the page automatically, triggering lazy-loaded content
Each scroll position is captured as a screenshot
Screenshots are stitched into one image
The results tab opens with the screenshot as preview and full HTML + CSS in the code tabs

Smart handling

Fixed headers — shown once in the first capture, hidden in subsequent frames
Lazy-loaded images — triggered by pre-scrolling before capture begins
Canvas size limits — automatically falls back to JPEG for extremely tall pages

PRO — Coming Soon

Project Generator

The ultimate feature. Capture a full website and generate a complete, ready-to-run project.

How to use

Capture a full page or extract a component
Click the "Project" button in the toolbar
Choose your framework: Next.js, React, Vue, or Svelte
Choose your styling: Tailwind, CSS Modules, or Plain CSS
Click "Generate & Download ZIP"

What's in the ZIP

Each page section becomes its own component file
A main page file imports all sections
package.json with all dependencies
Framework config files (next.config.js, vite.config.js, tsconfig.json)
Tailwind config with auto-detected custom classes
Global CSS with all extracted styles
README with setup instructions

Run npm install && npm run dev and see the site running locally.

PRO — Coming Soon

Multi-Tab Extraction

Extract multiple components and keep them all open in separate tabs.

Free users: each new extraction replaces the previous one. Pro users: a tab bar appears above the content, letting you switch between extractions instantly. Each tab has its own preview, code, and design tokens.

Use this to extract a header, hero, pricing section, and footer from the same site — then generate a project with all of them.

PRO — Coming Soon

Style Guide Builder

Generate a complete HTML style guide from your saved component library.

Save multiple components to your library, then click "Style Guide" in the library panel. CSSBite generates a beautifully formatted HTML document with:

Color palette with swatches
Typography samples
Spacing scale
Component previews with code

Opens in a new tab. Save or share as a static HTML file.

PRO — Coming Soon

Export to GitHub & VS Code

GitHub Gist

Click the GitHub button in the toolbar to create a private Gist with your extracted code. Each format (HTML, CSS, React, Vue, Svelte) becomes a separate file in the Gist. Requires a GitHub personal access token (set once in extension settings).

VS Code

Click the VS Code button to copy the current tab's code to your clipboard and open VS Code via the vscode:// protocol. Paste into a new file and start editing immediately.