QuillBot
Free tierAI paraphrasing and writing enhancement — rewrites sentences while preserving meaning.
Free tier available·All audiences·Powered by QuillBot
Key strengths
paraphrasing modesgrammar checkersummarizercitation generator
Free tier + paid plans · from $10 USD/mo
Chicago, US
Founded 2017
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QuillBot's paraphraser has seven modes: Standard, Fluency, Formal, Academic, Simple, Creative, and Shorten. The Grammar Checker detects grammatical, spelling, and punctuation errors with explanations. The Summarizer handles documents up to 1,200 words in the free tier. The Citation Generator produces APA, MLA, and Chicago formatted citations from URLs or DOIs.