QuillBot is a low cost toolkit for rewording, summarizing and checking text, built around its paraphraser. Premium is cheap at $8.33 a month billed yearly and adds a plagiarism checker, so it is worth it for students and anyone who rewrites a lot, but it is not built for drafting original business writing from scratch.
What QuillBot is
QuillBot is a set of AI writing tools in one account. The core is a paraphraser that rewrites your text in different styles, called modes QuillBot ↗. Around it sit a summarizer, a grammar checker, an AI detector, a humanizer that rewrites AI sounding text, a translator, a citation generator and an AI chat for writing help QuillBot ↗.
It works on the web and through a Chrome or Edge extension, a Word add in, a macOS app and Android and iOS apps QuillBot ↗. Premium can run on up to 10 devices at a time QuillBot ↗.
QuillBot is an editing tool more than a drafting tool. You bring the text, and it helps you reword it, shorten it or check it. That makes it a different kind of product from assistants like Claude or ChatGPT, which write from a short brief Claude pricing ↗.
What it does well
Paraphrasing is the strength. Premium unlocks 9 built in modes plus unlimited custom modes, side by side mode comparison, history, adjustable synonyms and 23 languages QuillBot ↗. That is useful for changing tone or simplifying a dense paragraph.
It is cheap. Premium costs $8.33 a month billed yearly, which QuillBot says is 58 percent off QuillBot ↗. You can pause Premium from your account page and not be billed during the pause QuillBot ↗.
The extras are useful. Premium includes 25,000 words a month of plagiarism checking, a 6,000 word summarizer with custom summaries, a translator for more than 40 languages and full AI detector access QuillBot ↗. Eesel AI notes a 4.8 out of 5 Trustpilot rating from more than 12,000 reviews eesel AI ↗.
The free plan is real. It includes the paraphraser in 2 modes, summaries up to 1,200 words, basic grammar fixes, a limited AI detector and limited AI chat QuillBot ↗.
Where it falls short
The free plan is small. The paraphraser takes only 100 words at a time, the humanizer is limited to 100 words, and there is no plagiarism checker QuillBot ↗. That is enough to reword a sentence but not a full email or web page.
It is not a drafting tool. For original business writing such as proposals or web pages, an AI assistant will do more Claude pricing ↗. Eesel AI also calls QuillBot's humanizer weaker than some rivals and notes a short refund window eesel AI ↗.
Pricing details are thin on the vendor page. QuillBot shows only the annual Premium price; the monthly price, Team pricing, free trial and refund terms are not shown QuillBot ↗. Hands on testing is in progress; we will update this review with results.
Pricing and plans
Free: $0, with the paraphraser up to 100 words in 2 modes, a 1,200 word summarizer, basic grammar fixes, a limited AI detector and a humanizer up to 100 words QuillBot ↗.
Premium: $8.33 a month billed yearly QuillBot ↗. Eesel AI lists the yearly total at $99.95 and a verified Student plan at $6.25 a month billed yearly eesel AI ↗. Premium adds full paraphrasing, 25,000 plagiarism words a month, a 6,000 word summarizer, advanced grammar in 6 languages, a translator and more storage QuillBot ↗.
Team: everything in Premium plus usage metrics, user management, central billing and priority support, with volume discounts for 5 or more members QuillBot ↗. Eesel AI lists Teams from $7.50 per user a month eesel AI ↗. QuillBot accepts cards and PayPal QuillBot ↗.
Who should (and shouldn't) use it
- Good fit: students and writers who reword, summarize and cite sources often QuillBot ↗.
- Good fit: anyone who wants a cheap plagiarism check alongside a paraphraser QuillBot ↗.
- Skip it if: you need full drafts of emails and pages written for you; Claude or ChatGPT do that Claude pricing ↗.
- Skip it if: you mainly want grammar fixes as you type; Grammarly is built for that Grammarly plans ↗.
Alternatives worth a look
- Claude: our pick for natural sounding drafts of business writing Claude pricing ↗.
- Grammarly: our budget pick for fixing your own writing, with a free plan and Pro at $12 a month Grammarly plans ↗.
- ProWritingAid: in depth editing reports and a lifetime license option eesel AI ↗.
Where it appears
Best free optionThe Best AI DetectorComparedThe Best AI Writing ToolComparedThe Best Free AI Writing ToolWhat’s good
- Cheap Premium
- Quick rewording
- Summaries up to 1,200 words free
What to know
- 100 word paraphrase limit on free
- No plagiarism check on free
Key features
- Paraphraser
- Summarizer
- Grammar checker
- AI detector
- Humanizer
- Plagiarism checker on Premium
Questions people ask
Is QuillBot free?
Yes. The free plan paraphrases up to 100 words at a time in 2 modes and summarizes up to 1,200 words QuillBot ↗.
How much is QuillBot Premium?
$8.33 a month billed yearly. Eesel AI lists the yearly total at $99.95 QuillBot ↗ eesel AI ↗.
Does QuillBot check for plagiarism?
Only on Premium, which includes 25,000 words a month of plagiarism checks QuillBot ↗.
Is QuillBot worth it?
For frequent rewording and summarizing, yes, given the low price QuillBot ↗. For writing from scratch, an AI assistant is more useful Claude pricing ↗.
Where this comes from
Checked Oct 9, 2026. Vendor pages describe their own products; independent sources add outside views. Hands on testing is in progress.
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