Browser Variable Helper

A Chrome DevTools extension to inspect DOM elements and highlight potential issues in CSS variables and hardcoded values.

As of June 2026, Browser Variable Helper has 10 users in the Developer Tools category.

Developer Tools

Chrome Web Store ↗.crx

Users+25.0%

Rating0%

—

— reviews

Reviews0%

—

Version

1.0.1

Manifest V3

History

4 snapshots

Tracking since Apr 19, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 19, 2026	8	—	—	1.0.1
May 4, 2026	9	—	—	1.0.1
May 13, 2026	6	—	—	1.0.1
Jun 8, 2026	9	—	—	1.0.1
Now	10	—	—	1.0.1

Permissions & access

Permissions: None declared
Host access: None declared

Screenshots

About

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.