Placeholdifier, developed by Rodrigo Pombo, is a free Chrome add-on that allows users to convert any website into a live wireframe. This handy tool is particularly useful for demos, streaming, hiding personal information, and visual regression testing.

With Placeholdifier, users can easily convert HTML elements into placeholders while keeping the website's interactivity intact. This means that users can still navigate through the website and interact with its features, but with the visual representation simplified to wireframes.

This add-on is a great solution for developers who want to showcase website designs without revealing sensitive information or for those who want to perform visual regression testing. It provides a convenient way to focus on the structure and layout of a website, making it easier to identify any design flaws or inconsistencies.

Overall, Placeholdifier is a valuable tool for anyone working with web development or design. Its simplicity and effectiveness make it a must-have add-on for Chrome users.