Grammar Checker is a free Chrome extension designed to enhance your writing by providing grammar and spelling corrections in multiple languages. Utilizing OpenAI's API, it supports languages such as Spanish, English, French, and more, making it an ideal tool for professionals and students alike. The extension features automatic language detection and a user-friendly interface that simplifies the proofreading process. Users can input text up to 2500 words, and errors are highlighted without altering the original content, allowing for easy review and correction.

The extension offers a straightforward workflow: simply click the icon, enter your text, and receive instant correction suggestions. Errors are underlined, with hover functionality revealing the recommended fixes. Users can also securely enter their OpenAI API key for a personalized experience. However, it's important to note that all text processed is sent to the OpenAI API, so users should avoid entering sensitive information.