QuillBot is an AI-driven paraphrasing tool that significantly enhances writing quality. Catering to 25 million monthly users, it offers Custom modes and 8 predefined modes, allowing for a myriad of ways to rephrase text. This tool improves fluency, vocabulary, tone, and style, adapting to various writing needs. Users can adjust the vocabulary change through the Synonym Slider for more precise or creative outputs. Additionally, QuillBot features an AI-powered thesaurus, providing a range of synonyms for any selected word, ensuring the ideal expression of the intended meaning.