Description
Browser Variable Helper is a Chrome DevTools extension that helps frontend developers audit the CSS of any web page.
It highlights:
⚠️ Hardcoded values (e.g. 16px, #fff, 50%)
ℹ️ Fallback values in var(--x, fallback)
❌ Undefined CSS variables used via var(--x)
Visual indicators are shown directly:
In the DOM tree
Inside the CSS panel
Each issue is color-coded and explained to help you clean up your stylesheets, adopt a token-based design system, or simply debug variables that aren't working as expected.
🔎 How to use
Install the extension
Open Chrome DevTools (F12)
Navigate to the "Browser Variable Helper" tab
Click any element to view and inspect its styles
💡 No data is collected or transmitted. All analysis is done locally via DevTools APIs.
Reviews
Loading reviews...
Details
| Version | 1.0.1 |
| Updated | May 9, 2025 |
| Size | 369KiB |
| First Seen | Mar 25, 2026 |
Popular in developer
React Developer Tools
by Meta
5M
★ 3.95
developer
5M
★ 3.95
developer
Lighthouse
by lighthouse-extension-owners
1M
★ 4.42
developer
1M
★ 4.42
developer
Контур.Плагин
by kontur.extension
1M
★ 3.11
developer
1M
★ 3.11
developer
Similarweb - Website Traffic & SEO Checker
by Similarweb
1M
★ 4.66
developer
1M
★ 4.66
developer
Clear Cache
by Little Void LLC (Ben Bojko)
1M
★ 4.45
developer
1M
★ 4.45
developer
Popular Extensions
Adobe Acrobat: PDF edit, convert, sign tools
by Adobe Inc.
330M
★ 4.40
workflow
330M
★ 4.40
workflow
Chrome Remote Desktop
by Chrome Remote Desktop Release Managers
38M
★ 3.14
workflow
38M
★ 3.14
workflow
Cisco Webex Extension
by cisco.chromestore
24M
★ 2.34
social
24M
★ 2.34
social
Kami for Google Chrome™
by Kami
17M
★ 4.56
education
17M
★ 4.56
education
Read&Write for Google Chrome™
by Texthelp
17M
★ 3.44
accessibility
17M
★ 3.44
accessibility