What Is QuillBot?

QuillBot is an AI writing assistant that wraps multiple tools into one lightweight workspace. Think of it as a pocket-sized studio that can paraphrase a sentence, trim a 3 000-word report into key takeaways, and even flag accidental plagiarism before you hit send. It runs in the browser, inside Google Docs, Microsoft Word, or as a Chrome extension, so it is always one click away from your draft.

Behind the curtain sits a large-language-model stack trained to rewrite, summarize, translate, and analyze tone in real time. For busy students, marketers, or researchers, that means more clarity and less context-switching.

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Key Features of QuillBot

Paraphraser With Multiple Modes

The flagship Paraphraser offers up to 11 modes—including Standard, Fluency, Creative, Formal, Shorten, and Expand—so you can dial in the exact voice you need. Free users get 125 words per run, while Premium subscribers enjoy unlimited input plus a full synonym slider and Freeze Words to lock important terms in place. 

Summarizer up to 6 000 Words

Drop an article, research paper, or meeting transcript into the Summarizer and choose paragraph or key-sentence output. Premium raises the cap from 1 200 to 6 000 words, letting you distill long documents without chopping them into chunks. 

Flow Editor (formerly Co-Writer)

Flow is QuillBot’s full-screen writing space. It bundles templates, real-time web research, and AI feedback into a single tab, so you can outline, draft, and polish without leaving the page. Shared documents and AI Review were added in early 2025, making Flow a lightweight collaboration hub.

Grammar and Style Checker

QuillBot’s grammar engine fixes spelling, punctuation, and agreement errors in one click. It also surfaces tone and readability insights, helping emails feel polished rather than robotic. Because it lives in the Chrome extension, suggestions pop up across Gmail, LinkedIn, Notion, and hundreds of other sites. 

Plagiarism & AI Detection Suite

Premium users can scan up to 100 pages a month against academic and web sources, catching accidental copy before a professor—or a search-engine update—does. An AI Detector flags text that looks machine-generated, handy for teachers double-checking assignments.

Citation Generator & Translator

Need an APA reference or a quick French translation? The Citation Generator supports more than 1 000 styles, and the Translator handles 45 languages with respectable accuracy. Both tools sit inside the same dashboard, shaving minutes off every draft cycle. 

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Pricing: Free, Premium, and Team Plans

• Free – $0. Two paraphrasing modes, 125-word limit, 1 200-word summarizer, basic grammar. 
• Premium Monthly – $19.95 per month. Unlimited paraphrasing, nine predefined and custom modes, 6 000-word summarizer, plagiarism checker, faster processing, priority support. 
• Premium Annual – $99.95 per year (about $8.33/mo) with a three-day money-back guarantee. 
• Team Plan – Starts at $7.50 per user per month (billed annually) for 5–10 seats, with tiered discounts down to $5.83 for 51+ seats. All Premium features plus centralized billing and seat management.

The free tier is generous enough for casual rewrites, but anyone who paraphrases daily will hit the 125-word ceiling fast. Annual Premium remains the sweet spot, offering 58 percent savings over monthly billing.

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FAQ

Is QuillBot safe to use for academic papers?

Yes. The platform runs on encrypted servers, and finished documents are not shared publicly. However, always review paraphrased text to make sure citations and meaning stay intact.

Can I use QuillBot inside Google Docs?

Absolutely. Install the Google Workspace add-on or the Chrome extension, sign in, and the QuillBot widget appears next to your document. 

How accurate is the AI Detector?

Independent tests show it catches raw AI text well but can mislabel hybrid content, so treat results as a guideline rather than a verdict.

Does the plagiarism checker cost extra?

No. It is bundled with Premium, offering 100 pages of scanning each month, enough for most coursework or blog workflows.

What happens if I cancel Premium?

Your account reverts to the Free plan. All documents remain accessible, but advanced features and unlimited word counts are locked until you resubscribe.

Verdict

QuillBot is not the flashiest AI tool on the market, but it nails the fundamentals: speed, versatility, and sane pricing. If your daily workflow involves lots of rewriting or summarizing, the Premium plan pays for itself in a week of saved edits. Casual writers can stick to the free tier and upgrade only when word limits pinch.