QuillBot is a general-purpose AI-powered writing assistance tool that includes a paraphraser, grammar checker, plagiarism checker, translator and other tools. It was designed to help people improve their writing from first draft to final draft, with an interface that's accessible to writers of all skill levels. The Premium subscription adds features like unlimited paraphrasing and more advanced grammar suggestions.
Another good option is Wordvice AI, which offers a range of tools including an AI Proofreader, AI Paraphraser, AI Translator and AI Summarizer. It's geared for a range of users, including researchers, students and content writers, and offers subscription plans for different needs, including a free Basic Plan.
If you're looking for something more specialized, ChatGPT Writer is geared specifically for writing emails and other communications. It's got tools like grammar checking, rewriting, tone shifting and translation, and works with all languages. It integrates with Gmail, too. The tool uses large language models and offers a range of pricing options, so it's available to those with modest or more generous budgets.
Last, ASKWay offers a powerful AI-powered browser extension that combines writing, PDF translation, web translation and AI-powered internet search. It's good for generating high-quality content fast, and works on multiple browsers and mobile devices. It's a pay-per-use tool with no subscription fees.