Shakespeare Toolbar is an AI writing assistant tool integrated within a toolbar. It is designed to enhance the writing process by offering abilities to quickly summarize, explain, and rephrase text without leaving the writing platform. This tool is implemented as a Chrome extension and includes Google Docs support. The toolbar offers useful AI shortcuts for tasks such as rephrasing emails, summarizing documents, and crafting social media posts. It supports multiple languages and ensures writing is completed with enhanced speed and confidence. One standout feature is its privacy and security, where all processing is performed on the user's device, making the tool useful for sensitive documents. In contrast to other AI tools, Shakespeare Toolbar operates wherever the user is writing, eliminating the need to switch between applications. It also offers a feature to fix spelling and grammar mistakes and helps in generating polite and friendly responses in email and customer support interactions. Moreover, the tool provides prompts for writing, thus streamlining the writing process. Lastly, a significant feature is that this tool is a one-time purchase, allowing lifetime usage.