If you want a tool that'll help you paraphrase sentences and convert passive voice to active voice, Outwrite is a good option. Outwrite is an AI-powered writing assistant that can be used in conjunction with tools like Google Docs, Microsoft Word and WordPress. It also has more advanced features like grammar and punctuation checks, writing style suggestions and the conversion of passive voice to active voice. It has a range of pricing options, including a free Essential plan and a Pro plan for US$9.95 per month.
Another option is QuillBot, an AI-powered writing assistant with a range of tools to help you refine your writing. In addition to paraphrasing, it's got a grammar checker, a plagiarism detector and a translator. Its Premium subscription adds unlimited paraphrasing, advanced grammar suggestions and custom summaries. It's easy to use and accessible to writers of all skill levels.
LanguageTool is another option. It supports more than 30 languages and language varieties, and offers grammar checking, tone suggestions and paraphrasing. It can be used in conjunction with a variety of writing tools and websites, including browser extensions and office plugins. Premium subscribers get more advanced grammar and punctuation checks, as well as team features like user administration.
Last, ProWritingAid offers a broad range of writing tools, including passive voice detection and real-time checks. It can be integrated with a variety of software tools like Microsoft Word, Google Docs and Scrivener. ProWritingAid offers a range of pricing options for different levels of use, from basic to advanced, so it's good for professional writers, students and businesspeople.