QuillBot

QuillBot is an AI-powered writing assistant providing paraphrasing, grammar checking, summarizing, translation, and citation generation tools designed to help students, professionals, and content writers improve the clarity, correctness, and originality of their written work. The paraphraser tool rewrites sentences and paragraphs using seven different modes including standard, fluency, formal, academic, simple, creative, and expand or shorten, each producing different stylistic variations of the input text while preserving the original meaning. The grammar checker identifies and corrects spelling, punctuation, and grammatical errors with detailed explanations for each suggestion, supporting both American and British English conventions. The summarizer tool condenses long articles, documents, and papers into concise summaries with adjustable length settings using either paragraph or bullet point output formats. The citation generator creates formatted citations in APA, MLA, Chicago, and Harvard styles from URLs, book titles, or journal articles, streamlining the academic writing process. The plagiarism checker compares submitted text against billions of web pages and academic sources to identify potential originality issues. The co-writer feature provides an integrated writing environment combining all tools with research note management and document organization. The translator supports dozens of languages with context-aware translation. Designed for students, academic writers, content creators, professionals, and non-native English speakers.