

⚡ Quick Verdict:
- Chạy: QuillBot Premium starts at $4.17/month. Grammarly Pro starts at $12/month. Both have a free plan.
- Phù hợp nhất cho: Grammarly suits grammar checking and academic papers. QuillBot suits paraphrasing and budget writers.
- Điểm khác biệt chính: Grammarly is a full grammar checker. QuillBot is built around its paraphrasing tool.
- Our pick: Grammarly for most writers. It catches more grammar errors and reads tone and style.

QuillBot and Grammarly both claim to make your writing better.
But they were built to solve two different problems.
Grammarly is a grammar checker that fixes mistakes as you type.
QuillBot is a paraphrasing tool that rewrites your sentences.
So the quillbot vs grammarly choice depends on what you write.
This guide breaks down both writing tools to help you pick.
Toàn cảnh
This Quillbot vs Grammarly comparison covers pricing, key features, and ease of use.
We also break down who each writing trợ lý works best for.
Our sources include published specs, documentation, and G2 reviews.
Our writers also spent hands-on time with both QuillBot and Grammarly.
By the end, you will know which grammar checking tool fits your writing process.
QuillBot là gì?
QuillBot is an AI powered writing assistant built around a paraphrasing tool.
It was developed in 2017 to reword text quickly.
Bạn có thể diễn giải in six different modes, like formal and creative.
It also includes a summarizer, citation máy phát điện, and translator.
QuillBot offers a basic grammar checker too, with word-level suggestions.
Watch how the rewriting works in this quick walkthrough.

QuillBot
A budget friendly writing assistant for paraphrasing. It rewrites dense sentences and improves fluency. Start free without signing up.
Bảng giá QuillBot
Here is what QuillBot costs in 2026. Let’s break it down.
| Kế hoạch | Giá | Tốt nhất cho |
|---|---|---|
| Miễn phí | Miễn phí (Mãi mãi) | Testing the paraphrasing tool |
| Phần thưởng | 4,17 đô la/tháng | Students and budget writers |
| Kế hoạch nhóm | Giá tùy chỉnh | Groups and small teams |
Pricing verified June 2026.

Dùng thử miễn phí: The free plan is free forever. No credit card is needed to start.
Đảm bảo hoàn tiền: Quillbot Premium offers a 3-day refund policy.
📌 Ghi chú: The $4.17 rate is the monthly cost when billed annually. QuillBot’s monthly plan costs $19.95 if you pay month to month.
⚠️ Cảnh báo: Quillbot’s premium plagiarism checker limits checks to 20 pages monthly. That is tight for long research paper work.
Key Benefits of QuillBot
Here is what makes QuillBot worth considering:
- Paraphrasing tool: QuillBot offers six modes including formal and creative. You can reword up to 10,000 words at a time.
- Freeze words: You can lock specific words so the tool keeps them. This protects names and key terms.
- Công cụ bổ sung: A summarizer, citation máy phát điện, and translator come built in. These are helpful features for academic writers.
- Budget friendly: Premium is cheaper than most writing assistants. The free version stays usable for daily tasks.
- No login needed: You can start without signing up or logging in. The dual-pane layout shows original and paraphrased text side by side.
- Multiple languages: The paraphraser supports several languages, not just English grammar.

What Our Team Noticed
Của chúng tôi nhà văn signed up for QuillBot and used it for everyday rewriting tasks. Here is what stood out from that hands-on time:

QuillBot Pros & Cons
✅ Ưu điểm
- Six paraphrasing modes with the option to freeze words
- Budget friendly pricing with a free forever plan
- Built-in summarizer, translator, and citation generator
- Works without signing up or logging in
❌ Nhược điểm
- Grammar checker is less efficient than Grammarly’s
- Plagiarism checking is capped at 20 pages per month
- Can risk accidental plagiarism if used carelessly
Grammarly là gì?
Grammarly is an AI powered writing tool focused on grammar checking.
It corrects grammar, spelling errors, and punctuation errors in real time.
It also adds style suggestions, tone detection, and readability scores.
The grammar checker can detect up to 250 grammar errors in seconds.
It works inside Microsoft Word, Google Docs, and Google Chrome.
See the grammar checking and style features in this overview.

🏆 Winner: Grammarly
A full grammar checker for fixing grammar mistakes fast. It reads tone and style as you write. The browser extension works almost everywhere.
Bảng giá Grammarly
Here is what Grammarly costs in 2026. Let’s break it down.
| Kế hoạch | Giá | Tốt nhất cho |
|---|---|---|
| Miễn phí | $0 USD | Basic grammar and spelling fixes |
| Chuyên nghiệp | $12 USD/month | Academic writers and pros |
| Doanh nghiệp | Liên hệ bộ phận bán hàng | Các tổ chức lớn |
Pricing verified June 2026.

Dùng thử miễn phí: The free plan is available with no credit card needed. It covers basic grammar checking.
Đảm bảo hoàn tiền: Grammarly does not advertise a fixed refund window, so check current terms at checkout.
📌 Ghi chú: The $12/month rate reflects annual billing. Grammarly Việc kinh doanh starts at $15/month per user for teams that need shared style rules.
⚠️ Cảnh báo: Plagiarism detection and most style suggestions sit behind Grammarly Premium. The free version is a basic grammar checker.
Key Benefits of Grammarly
Here is what makes Grammarly worth considering:
- Deep grammar checking: Grammarly catches grammatical errors that simple tools miss. It also explains why each correction matters.
- Style suggestions: It flags unnecessary words and weak sentence structure. Tone detection helps you match your intended audience.
- Grammarly’s plagiarism checker: Premium scans billions of web pages for plagiarism checking. Pro plans include unlimited plagiarism checks.
- Có tác dụng ở mọi nơi: The browser extension runs in Google Chrome, Microsoft Word, and Google Docs. Errors are highlighted in different colors for clarity.
- Vocabulary suggestions: It suggests stronger word choices and improves writing quality. This builds your writing skills over time.
- Clean dashboard: The dashboard shows all checked documents for easy access. Navigation stays simple for new users.

What Our Team Noticed
Our writer signed up for Grammarly and used it across documents and emails. Here is what stood out from that hands-on time:

Grammarly Pros & Cons
✅ Ưu điểm
- Detects up to 250 grammar errors in seconds
- Strong tone detection and readability scores
- Plagiarism checker scans billions of web pages
- Excellent browser extension for real-time assistance
❌ Nhược điểm
- No dedicated paraphrasing tool like QuillBot
- Most features need Grammarly Premium
- Can miss some errors that QuillBot catches
So sánh tính năng
Ready to dig into QuillBot and Grammarly side by side? We will look at nine key features, then pricing. This helps you see where each writing tool wins.
| Tính năng | QuillBot | Grammarly |
|---|---|---|
| Giá khởi điểm | 4,17 đô la/tháng | 12 đô la/tháng |
| Gói miễn phí | ✅ | ✅ |
| Công cụ kiểm tra ngữ pháp | ✅ Cơ bản | ✅ Nâng cao |
| Công cụ diễn giải lại | ✅ | ✅ Số lượng có hạn |
| Công cụ kiểm tra đạo văn | ✅ 20 pages/mo | ✅ Không giới hạn (Pro) |
| Tone & Style Suggestions | ❌ | ✅ |
| Công cụ tạo trích dẫn | ✅ | ✅ |
| Tiện ích mở rộng trình duyệt | ✅ | ✅ |
| Tốt nhất cho | Diễn đạt lại | Kiểm tra ngữ pháp |
1. Grammar Checking
QuillBot: The grammar checker gives individual word-level suggestions. It is a basic grammar checker that catches spelling errors and common grammar mistakes. In tests it found 13 errors where Grammarly found 30.

Grammarly: Grammarly focuses on deep, full-sentence grammar correction. It can detect up to 250 grammar errors in seconds and explains each fix. For checking grammar in academic papers, this depth matters.

⚠️ Cảnh báo: QuillBot’s grammar checker is less efficient than Grammarly’s. If correcting grammar is your main goal, Grammarly is the stronger grammar checking tool.
2. Paraphrasing Tool
QuillBot: This is where QuillBot shines. The paraphrasing tool rephrases text to improve fluency or change tone. You get six modes and can freeze words you want to keep. It rewrites up to 10,000 words at once.

Grammarly: Grammarly added a paraphrasing feature, but it is limited next to QuillBot. It is less focused on deep sentence structure rewriting. Many users pair both, using Grammarly for proofreading and QuillBot for rewording dense sentences.

3. Phát hiện đạo văn
QuillBot: QuillBot’s premium plagiarism checker allows 20 pages per month. Some reviewers find it better for short academic papers. But the monthly cap limits heavy plagiarism checking.

Grammarly: Grammarly’s plagiarism checker scans billions of web pages. The premium plan includes unlimited plagiarism checks. For checking academic papers against large databases, it is more accurate.

4. Style and Tone Suggestions
QuillBot: QuillBot offers limited style feedback. It can trim unnecessary words during paraphrasing. But it does not score tone or readability the way Grammarly does.
Grammarly: Grammarly offers style suggestions, vocabulary suggestions, and tone detection. It flags wordy phrasing and weak sentence structure. This helps you match your intended audience and keep a consistent writing style.

5. Công cụ tạo trích dẫn
QuillBot: QuillBot includes a free citation generator. It can generate citations in common styles for a research paper. This is handy for students who need quick references.

Grammarly: Grammarly also helps you generate citations and includes a citation finder. It fits naturally into the writing process when you draft inside a word processor.

6. Summarizer and Translation
QuillBot: QuillBot bundles a summarizer and a translator. The summarizer shortens long text by word length or key points. The translator supports multiple languages, which other tools often charge extra for.

Grammarly: Grammarly does not summarize or translate. Instead it leans into proofreading and clarity. It helps you improve sentence structure without changing your meaning.

7. AI Writing and Humanizer Tools
QuillBot: QuillBot adds an AI Humanizer and an AI chat helper. These use machine learning to smooth out robotic phrasing. They are useful when drafting posts for mạng xã hội nền tảng.

Grammarly: Grammarly’s generative AI drafts and rewrites short passages. Its artificial intelligence focuses on clear, correct output. It works well as an everyday ai writing assistant.

8. Integrations and Platforms
QuillBot: QuillBot offers browser add-ons plus a Microsoft Word add-in and a Google Chrome extension. The dual-pane layout makes side-by-side editing simple.
Grammarly: Grammarly has wider reach. It works in MS Word, Google Docs, Google Chrome, and most apps. The browser extension gives real-time help almost anywhere you type.
9. Dễ sử dụng
QuillBot: QuillBot is quick to start. You can use it without an account. The interface puts your original text and the rewrite next to each other.
Grammarly: Grammarly has a straightforward interface with easy navigation. The dashboard stores every document you check. Color-coded highlights make spelling mistakes easy to spot.
10. Định giá & Chi phí
Hãy cùng so sánh các gói giá cạnh nhau.
| Kế hoạch | QuillBot | Grammarly |
|---|---|---|
| Miễn phí | Miễn phí (Mãi mãi) | $0 USD |
| Cao cấp / Chuyên nghiệp | 4,17 đô la/tháng | 12 đô la/tháng |
| Doanh nghiệp / Công ty | Giá tùy chỉnh | Liên hệ bộ phận bán hàng |
QuillBot: QuillBot is the budget friendly writing assistant. Premium runs $4.17/month billed annually. For students and casual writers, the free version handles most tasks.
Grammarly: Grammarly Premium costs more at $12/month, billed annually. But it adds unlimited plagiarism checks, style suggestions, and deeper grammar checking. Grammarly Business starts at $15/month per user.
Các kịch bản khác nhau
| Nếu bạn cần… | Chọn | Tại sao |
|---|---|---|
| Ngân sách eo hẹp | QuillBot | Far cheaper monthly |
| Best grammar checking | Grammarly | Catches more grammar errors |
| Heavy paraphrasing | QuillBot | Six rewriting modes |
| Tone and style help | Grammarly | Style suggestions and tone detection |
| Thân thiện với người mới bắt đầu | Grammarly | Simple, guided interface |
💰 Ngân sách của bạn
QuillBot is the cheaper pick by a wide margin. If price drives your choice, the QuillBot Premium plan beats Grammarly Premium on cost.
🔌 Bộ công nghệ của bạn
Both work in Google Chrome and Microsoft Word. Grammarly reaches more apps, so it fits more of your daily writing tools.
📝 Phong cách viết của bạn
QuillBot rewrites text while keeping the same writing style intact. Grammarly polishes your own words instead of replacing them.
🎓 Trình độ kinh nghiệm của bạn
New writers like that Grammarly explains each fix. Academic writers often run both grammar cờ caro together for safety.
🆓 Dùng thử và bản demo miễn phí
Both free versions are worth testing first. Try each on a real document before paying for the premium versions.
🛟 Các tùy chọn hỗ trợ
Both offer help docs and email support. Heavy users building a freelance writing career may prefer Grammarly’s larger help library.
Hướng dẫn chuyển đổi
Bạn đã sử dụng một trong những công cụ này rồi? Dưới đây là những điều bạn cần biết nếu chuyển sang sử dụng công cụ khác.
🔄 Switching from QuillBot to Grammarly?
✅ Những lợi ích bạn sẽ nhận được:
- Deeper grammar checking that catches more grammatical errors
- Tone detection, readability scores, and style suggestions
- Unlimited plagiarism checks against billions of web pages
❌ Những gì bạn sẽ mất:
- Six-mode paraphrasing and the freeze words feature
- Built-in summarizer and translator
- The lower QuillBot price
📋 Cách chuyển đổi:
- Copy your text out of QuillBot
- Create a free Grammarly account
- Install the Google Chrome extension and paste your draft
🔄 Switching from Grammarly to QuillBot?
✅ Những lợi ích bạn sẽ nhận được:
- A stronger paraphrasing tool with multiple modes
- A summarizer, translator, and citation generator in one place
- A lower monthly price
❌ Những gì bạn sẽ mất:
- Advanced grammar checking and error explanations
- Tone detection and detailed style feedback
- Unlimited plagiarism detection
📋 Cách chuyển đổi:
- Export or copy your text from Grammarly
- Open QuillBot, no signup required to start
- Paste your text and pick a paraphrasing mode
What Our Review Didn’t Cover
This comparison focused on individual writers, students, and small teams. We did not test enterprise rollouts or deep API use. Our notes reflect the June 2026 versions, so features may shift. If you manage a large content team, your priorities may differ from what we covered here.
Phán quyết cuối cùng
| Loại | Người thắng |
|---|---|
| 💰 Giá cả | QuillBot |
| 🚀 Grammar Checking | Grammarly |
| ✍️ Paraphrasing | QuillBot |
| 🎯 Plagiarism Detection | Grammarly |
| 🎨 Style & Tone | Grammarly |
| 👶 Dễ sử dụng | Grammarly |
| 🏆 Người chiến thắng chung cuộc | Grammarly |
🏆 WINNER: GRAMMARLY
Grammarly wins 4 out of 6 categories.
Phù hợp nhất cho: grammar checking, academic papers, tone and style, real-time editing
QuillBot and Grammarly solve different problems. Grammarly is the better grammar checker. QuillBot is the better paraphrasing tool.
If your main job is to fix mistakes and lift writing quality, Grammarly is the safer pick. It catches more grammar errors, reads tone, and helps you improve sentence structure and sentence length.
QuillBot is excellent for rewording dense text on a budget. Not every reader needs deep grammar tools, and a punctuation checker plus a paraphraser may be enough for them.
Many writers use both QuillBot and Grammarly together. The grammarly and quillbot combo covers rewriting and proofreading at once.
More of QuillBot Compared
Here is how QuillBot stacks up against other tools:
QuillBot vs Paperpal
QuillBot wins on: cheaper pricing, six paraphrasing modes, broader free version
Paperpal wins on: academic-only focus, journal-ready edits, subject-specific suggestions
QuillBot vs Writesonic
QuillBot wins on: paraphrasing depth, freeze words, lower entry price
Writesonic wins on: long-form blog drafting, marketing templates, COMMENT công cụ nội dung
QuillBot vs Yomu
QuillBot wins on: rewriting modes, translator, cheaper plans
Yomu wins on: citation handling, research paper workflow, in-document AI
More of Grammarly Compared
Here is how Grammarly stacks up against other writing assistants:
Grammarly vs Jenni
Grammarly wins on: grammar accuracy, tone detection, plagiarism scanning
Jenni wins on: AI essay drafting, in-line citations, academic auto-complete
Grammarly wins on: real-time correcting grammar, proofreading depth, app coverage
Writesonic wins on: bulk content generation, ad copy, image and blog tools
Grammarly vs Sider
Grammarly wins on: dedicated grammar checkers, document dashboard, tone scoring
Sider wins on: multi-model AI chat, page summaries, browser research tasks
Câu hỏi thường gặp
Is Grammarly more accurate than QuillBot?
Yes, for grammar. In tests Grammarly found 30 errors while QuillBot found 13. Grammarly’s grammar checker reads sentence structure more deeply and explains each fix.
Các nhà văn chuyên nghiệp có sử dụng QuillBot không?
Many do, mostly for paraphrasing and summarizing. Professionals often pair it with a stronger grammar checker, using QuillBot to reword dense sentences and another tool to fix mistakes.
Nhược điểm của QuillBot là gì?
Its grammar checking is weaker than Grammarly’s. The plagiarism checker also caps at 20 pages monthly. Careless paraphrasing can risk accidental plagiarism in academic papers.
Which tool is better than QuillBot?
For grammar and tone, Grammarly is better. For pure paraphrasing on a budget, few tools beat QuillBot. The best choice depends on your target audience and tasks.
Should I use QuillBot or Grammarly?
Pick Grammarly for grammar checking and academic writing. Pick QuillBot for paraphrasing on a budget. Many writers use both QuillBot and Grammarly together for the best results.













