Biyo is a free Chrome extension designed for rapid prototyping of Vue.js and React applications directly within existing web pages. This tool allows developers to seamlessly inject their applications without altering the original codebase, facilitating quick feature testing in live environments. With its ability to provide instant feedback through hot module replacement, Biyo enhances the prototyping process by enabling real-time modifications to the user interface.

The extension supports multiple mounting strategies, allowing users to customize how their applications are integrated into web pages. Biyo automatically detects the framework in use and requires specific mounting functions for proper operation. This ensures that developers can easily validate ideas and test features in production settings, making it a valuable addition to the toolkit of any web developer looking to enhance their workflow.