RewriteBar is a macOS menu bar AI assistant designed to enhance writing through various features. It allows users to quickly correct grammar and spelling errors, change writing styles, and translate text seamlessly within applications. With just a simple keyboard shortcut, users can access a user-friendly command menu that facilitates easy navigation and instant action execution.

RewriteBar supports up to 30 languages, making it particularly useful for non-native English speakers who wish to simplify their writing or adjust tone for different audiences, such as professional emails or casual messages. This tool is designed to improve daily writing tasks, catering to diverse user groups like students, developers, and marketers, without the complexity of external websites or additional software installations.