Attribute Highlighter

Attribute Highlighter is a powerful and lightweight browser extension designed for developers and testers who work with HTML attributes like data-testid, id, or custom locators.

With a few clicks, you can:

✅ Highlight all elements with a specific attribute

🏷️ Display the attribute values directly on the UI

📋 Extract attribute values for documentation or automation

🚨 Identify elements with missing or blank attribute values

📦 Work within specific page sections or globally

🔍 Quickly validate locator coverage across your application

Especially useful for QA engineers, test automation authors, and front-end developers who rely on structured attributes for writing reliable and maintainable tests.