QuillBot Premium unlocks unlimited paraphrasing, plagiarism checking, and citation generation. It offers 9 writing modes and a built-in translator for comprehensive writing assistance.

CollegeEssay is an AI-powered essay writing platform specializing in college admission essays and academic papers with personalized feedback and revision suggestions.

Consensus is an AI-powered search engine that finds and summarizes answers from academic research papers. It extracts findings, methods, and sample sizes. Researchers use it for evidence-based answers.

Virtual Writing Tutor is a free AI grammar checker with essay scoring, vocabulary analysis, and error correction for ESL students and English learners.

Scite is an AI platform that shows how academic papers are cited, indicating whether citations support or contrast claims. It provides citation context analysis for research evaluation.

Wordtune is an AI-powered writing companion that goes far beyond basic grammar checking to help users rephrase, rewrite, and refine their sentences for maximum impact. It offers tone adjustments to match different audiences, ability to shorten or expand text while preserving meaning, and contextual synonym suggestions that understand the nuance of your writing. Wordtune integrates as a browser extension and desktop app, working across emails, documents, and web pages. Professionals use it for polishing business communication, academic writing, and creative content where word choice matters.