Dummy is a free Chrome add-on developed by dummy.alibaba. It falls under the category of browsers and specifically the subcategory of add-ons and tools. This add-on is designed to be used during development or testing to create mock data.

With Dummy, developers and testers no longer need to wait for backend APIs to be ready. They can directly develop their logic using mock data. This is particularly useful for speeding up the development process and ensuring that the logic is working correctly.

One of the key features of Dummy is its convenient and efficient management of various mock data rules. Users can easily define and manage different rules for generating mock data. This allows for greater flexibility in simulating different scenarios and edge cases during testing.

Another advantage of Dummy is its ability to simulate data boundary values. This is crucial for testing various data situations and ensuring that the application handles them correctly. By using Dummy, developers and testers can easily test the application's behavior in different data scenarios.

It is important to note that Dummy is an internal application used within Alibaba's intranet. It is not available for public use.