Question: Is there an online platform that can assist me in paraphrasing sentences while maintaining their original meaning?

One of the best is Rephrasely. The tool is a powerful writing assistant that uses AI to paraphrase, rewrite and reword text. It works in more than 100 languages, and you can choose from a variety of paraphrasing modes, including a paragraph generator and a serious plagiarism detector. Rephrasely offers two subscription tiers, making it a good option for students, professional writers and anyone who wants to improve writing productivity and ensure they're not copying somebody else's work.

Another good option is the Paraphrase Tool. The tool offers a range of options for rewriting sentences, paragraphs and essays in more than 100 languages. It offers 15 free paraphrasing modes, a compose mode that turns keywords into paragraphs, and a plagiarism detector in more than 50 languages. It's good for writers who work in multiple languages and need help with sentence structure, and you can try it for free for three days.

If you're looking for a more complete suite of writing tools, check out QuillBot. QuillBot offers a paraphraser, grammar checker, plagiarism detector and more, all with AI under the hood. Its interface is simple enough for writers who are new to AI tools, and its Premium subscription adds some higher-end features to help you work faster without sacrificing quality. It's good for writers who want to move from draft to final version.