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April 15, 20258 min readBestAI.net

QuillBot Review 2025: Is It Better Than Grammarly?

QuillBot has 35 million users and is the #1 AI paraphrasing tool. But does it beat Grammarly? We tested both extensively — here's the verdict.

# QuillBot Review 2025: Is It Better Than Grammarly?


With over 35 million users, QuillBot is the world's most popular AI paraphrasing tool. But can it replace Grammarly? After weeks of testing both tools, here's our honest review.


What Is QuillBot?


QuillBot is an AI writing assistant specializing in paraphrasing — rewriting text while preserving meaning. It launched in 2017 and has grown explosively among students, writers, and ESL speakers who need to restate ideas without copying.


QuillBot's Key Features


Paraphraser (Core Feature)

QuillBot's paraphraser rewrites text in 8 modes:

  • **Standard** — balanced rewrite
  • **Fluency** — fixes errors and improves flow
  • **Formal** — academic or professional tone
  • **Academic** — scholarly language
  • **Creative** — more original phrasing
  • **Shorten** — concise version
  • **Expand** — add more detail
  • **Custom** — set your own vocabulary intensity

  • The quality is genuinely impressive. We tested it with marketing copy, academic text, and casual writing — all came out natural and readable.


    Grammar Checker

    QuillBot's grammar checker is solid but not Grammarly-level. It catches the obvious mistakes but misses nuanced style issues.


    Summarizer

    Paste a long article and get a bullet-point or paragraph summary. Very useful for research.


    Citation Generator

    Automatically generate citations in APA, MLA, Chicago, and more. A huge time-saver for students.


    Translator

    Translate text into 30+ languages. Basic but functional.


    QuillBot Free vs Premium


    | Feature | Free | Premium ($10/mo) |

    |---|---|---|

    | Paraphrasing limit | 125 words | Unlimited |

    | Paraphrasing modes | 2 | 8 |

    | Faster processing | ❌ | ✅ |

    | Tone detection | ❌ | ✅ |

    | Plagiarism checker | ❌ | 20 pages/month |


    The free plan is useful for occasional paraphrasing. Power users will hit the 125-word limit constantly and need Premium.


    QuillBot vs Grammarly: The Verdict


    These tools do different things:

  • **Grammarly** = fix errors in your own writing
  • **QuillBot** = rewrite existing text in a new way

  • For grammar checking: Grammarly wins by a mile. It's deeper, catches more, and integrates everywhere.


    For paraphrasing: QuillBot wins. It's what it was built for.


    Many serious writers use both. At $22/month total, you get comprehensive writing support.


    Who Should Use QuillBot?


    ✅ Students writing essays and research papers

    ✅ ESL writers who want more natural English

    ✅ Content marketers repurposing content

    ✅ Anyone avoiding accidental plagiarism


    Our Rating: 4.4/5


    QuillBot is excellent at what it does. It's not a replacement for Grammarly — it's a complement. If paraphrasing is a regular part of your workflow, Premium is worth the $10/month.

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