Credentials Changer is a free Chrome add-on designed for developers looking to streamline cookie management across different environments. This tool allows users to capture cookies from any tab and apply them to another, making it particularly useful for switching between production and localhost environments without the hassle of repeated logins. With a simple interface, it enables the saving of named credential profiles, allowing for quick application of essential cookies with just a click.

In addition to simplifying the login process, Credentials Changer aids in testing various user sessions efficiently and facilitates the sharing of session states between tabs. Notably, it prioritizes user privacy by storing all credentials locally using Chrome's storage API, ensuring no external requests are made. This makes it a reliable choice for developers needing a practical solution for cookie management.