Best Chrome Extensions for Frontend Developers (2026)
The right Chrome extensions can save a lot of time during frontend development.
These are the most useful ones organized by what they help you do.
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Extensions for UI testing
Responsive Viewer
Shows the same page at multiple breakpoints at once, useful for quick responsive checks without resizing by hand.
Free
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Window Resizer
Switches the browser window between preset viewport sizes, useful for checking layouts against common screen widths.
Free
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VisBug
Lets you inspect spacing, alignment, typography, and layout directly on the page with visual editing tools.
Free
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Extensions for colors
Chroma
Eyedropper, picker, and palette tools in one extension. Useful when you need to inspect or save colors from live sites.
Free
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Extensions for SVG
SVG Gobbler
Finds inline SVGs on a page and lets you copy or download them without digging through the DOM.
Free
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Extensions for CSS
CSS Peeper
Inspects colors, typography, spacing, and assets from live sites without digging through DevTools panels.
Free
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Extensions for JSON
JSONVue
Lightweight JSON formatter for quick inspection when you just need a clean tree view in the tab.
Free
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Extensions for Tailwind CSS
Tailwind DX
Adds Tailwind-specific inspection tools to DevTools, useful for reading utility classes and spacing faster.
Free
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Extensions for React
React Developer Tools
Adds the React panel to DevTools so you can inspect component trees, props, hooks, and renders.
Free
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Extensions for pixels
Page Ruler
Measures spacing, widths, and heights directly on the page, useful for checking layouts against the design.
Free
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Extensions for tech detection
Wappalyzer
Detects frameworks, CMSs, analytics tools, and other technologies used by the site you are visiting.
Free
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Extensions for accessibility
axe DevTools
Finds accessibility issues directly in Chrome DevTools. The most reliable free accessibility checker for frontend work.
Free
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