Question: Is there a free AI tool that can help me rewrite sentences and paragraphs quickly?

If you're looking for a free AI tool to rewrite sentences and paragraphs, QuillBot is a good choice. The platform has a range of writing tools, including paraphrasing, grammar checking and a plagiarism detector. It's easy to use, regardless of your writing skill level, and can be integrated into apps and websites.

Another tool worth trying is the Paraphrase Tool, which can rewrite text in more than 100 languages. It has 15 free modes, including multiple style rewriting and a compose mode that turns keywords into paragraphs, so you can dramatically increase your writing speed. The tool also has a plagiarism checker in more than 50 languages, so it's good for writers who work in multiple languages or who need to write articles and essays.

Paraphrasing Tool is another good option, with four paraphrasing modes (standard, formal, smart and creative) and support for 15 languages. It's free to use unlimitedly and uses AI algorithms to deliver high accuracy and speed. It's good for editing grammar, punctuation and spelling, as well as for changing writing style and tone.

If you want something more flexible, try Rephrasely. It's got 12 free and six premium modes for paraphrasing and rewriting text in more than 100 languages. It's also got features like the ability to generate paragraphs from keywords and check for plagiarism in multiple languages, so it's good for productivity and originality.