Question: Is there a free online tool that can help me proofread my essays and detect plagiarism?

If you need a free online tool to proofread your essays and flag plagiarism, Paperpal is a good choice. This AI-powered academic writing assistant offers context-specific language suggestions, grammar checks as you type and plagiarism checks with a score indicating how much of your work is a copy. It also offers a paraphraser that maintains a formal tone and can translate academic documents from 25+ languages. Paperpal is easy to use and integrates with MS Word so you can use it online or offline. A free version is available, but you can customize plans for more features.

Another option is PaperRater, which offers immediate feedback and suggestions to improve your writing. This online tool checks grammar and spelling, flags plagiarism, and offers writing tips as you type. It's fast, taking 5-15 seconds to produce results, and requires no downloads or sign-ups. PaperRater is free to use, so it's good for a quick proofread and plagiarism check.

If you want a more powerful writing assistant, check out Wordvice AI. It's got an AI Proofreader, AI Paraphraser, AI Translator and AI Plagiarism Checker. It's geared for researchers, students and content writers who want to improve writing quality and flag plagiarism. Wordvice AI offers a free Basic Plan, so you can try it out, and more premium plans for those who want more features. The company is actively developing the service to keep it up to date with the latest AI writing tools.