UID Verify is a Chrome add-on designed for developers working with Unified ID implementations, specifically UID2 and EUID integrations. This free tool offers essential features for debugging and validating these identity frameworks, making it particularly useful for ad tech developers, QA engineers, and technical account managers. With its real-time SDK monitoring, users can track API calls, server responses, and errors as they interact with various websites, allowing for efficient troubleshooting and testing of client setups.

The program also provides a comprehensive event history that displays a complete timeline of identity events and callbacks, along with a storage inspector for examining cookies and local storage for identity data. Additionally, UID Verify includes robust error detection capabilities that catch and display SDK errors with detailed context. It supports integration with Prebid.js and Google Secure Signals, enhancing its functionality for users working with these systems.