GitHub PR Merge Button Customizer is a free Chrome extension designed to streamline the merging process of pull requests on GitHub. This add-on specifically alters the default merge button option, replacing it with 'Squash Merge' for a more efficient code integration method. Users can easily install this tool to improve their workflow when managing pull requests, ensuring that commits are consolidated into a single commit, which helps maintain a cleaner project history.

The extension is categorized under Browsers as an add-on and tool, making it accessible for developers who rely on GitHub for version control. By focusing on the 'Squash Merge' functionality, the GitHub PR Merge Button Customizer assists in reducing clutter in project repositories, enhancing collaboration and organization among team members. Its straightforward implementation allows users to optimize their merging process without complicating their existing workflow.