QuillBot: AI Writing and Grammar Checker Tool icon

QuillBot: AI Writing and Grammar Checker Tool

by quillbot

v4.70.0 Updated Mar 23, 2026 20.52MiB
CWS
5M
Users
★ 4.69
4.6K reviews
#28
of 99.5K
communication
#2 of 2.1K
⚠️Requests 1 sensitive permission Highly rated 1M+ users Recently updated

Description

Enhance Your Writing Anywhere You Work. In today's fast-paced and increasingly global workplace, clear communication is essential. QuillBot for Chrome is an AI writing assistant that seamlessly integrates into the tools you already use to rewrite, rephrase, and refine your writing. Whether you’re crafting detailed reports, sending quick updates, or polishing client emails, QuillBot helps you write with clarity, confidence, and accuracy. It’s fast, multilingual, and free. And it’s trusted by over 5 million professionals worldwide. By installing the extension, you agree to the QuillBot Terms of Service (available at https://quillbot.com/terms) and acknowledge reading the QuillBot Privacy Policy (available at https://quillbot.com/privacy). ➤ We Value Your Privacy Your writing is your business—QuillBot keeps it that way. We never sell your data, and our security meets enterprise-grade standards. Visit our Trust Center (available at https://quillbot.com/trust-center) to learn more. ➤ Key Features ✓ AI Assistant (Free + Premium) Keep your workflow moving with instant writing feedback tailored for professional communication. • Streamline your writing with one-click grammar, spelling, and punctuation fixes • Enhance credibility with real-time style and tone suggestions • Optimize your messaging with tone, clarity, readability, and word count insights • Support global business communication in English, Spanish, French, German, Portuguese, and Dutch ➤ Your Shortcut to Clear, Confident Communication ✓ Paraphraser Whether you're refining your message or adjusting the tone of your text, QuillBot's Paraphraser will help you communicate professionally. Paraphraser offers a variety of modes suitable for business, including the following: • Formal Mode—Keep communications polished and professional • Custom Mode—Match the style or tone of your brand voice ✓ Grammar, Clarity, and Style Enhancements • Polish your writing with QuillBot for Chrome, ensuring your ideas land clearly and effectively • Instantly fix grammar, spelling, and punctuation errors • Refine awkward phrasing and unclear sentences in client-facing documents • Maintain your professional voice while enhancing clarity and flow • Eliminate repetition and convoluted phrasing in reports and presentations • Tailor language for different formats: executive summaries, in-depth analyses, and team correspondence ➤ Built for Modern Professionals Whether you're drafting proposals, updating policies, or replying to customers, QuillBot improves your communication without slowing you down. • Marketers—Rephrase content across formats and channels • Consultants—Ensure every deliverable is clear and professional • Sales & Support—Respond with polished, on-brand messaging • HR & Comms—Make internal updates easier to read and act on • Multilingual Professionals—Increase speed to localization • Academics & Researchers—Clarify complex writing for broader impact ➤ Free vs. Premium Free Plan Includes: • 2 modes (Standard & Fluency) • Basic grammar and spell check • Support for 6 languages Premium Unlocks: • Unlimited paraphrasing • 11+ paraphrasing modes (Formal, Custom, and more) • Advanced grammar and sentence-level edits • Tone, clarity, and readability insights ➤ Why QuillBot? QuillBot offers professionals a faster, smarter way to write with clarity, confidence, and accuracy. • Intuitive Interface—Simple, distraction-free, and built for productivity • Multilanguage Support—Write fluently in English, Spanish, French, German, Portuguese, and Dutch • Unmatched Accuracy—Fix grammar, spelling, and tone with confidence • Real-Time Assistance—Get live suggestions without switching tools or tabs • Comprehensive Tooling—From rephrasing to tone insights, it’s all built in • Secure & Private—Our security meets enterprise standards • Constantly Improving—Frequent updates make QuillBot smarter and more helpful every month Ready to Write Better? Install QuillBot for Chrome and turn every message, email, and document into your best writing—no extra effort required.
QuillBot: AI Writing and Grammar Checker Tool screenshot 1QuillBot: AI Writing and Grammar Checker Tool screenshot 2QuillBot: AI Writing and Grammar Checker Tool screenshot 3QuillBot: AI Writing and Grammar Checker Tool screenshot 4QuillBot: AI Writing and Grammar Checker Tool screenshot 5

Reviews (200 cached)

★☆☆☆☆2026-03-24
Sabah Hasan Alwan - صباح سعد علوان

Thank you very much to help me

★☆☆☆☆2026-03-19
Justin Quinn

immediately poor suggestions

★☆☆☆☆2026-03-12
JadGer

Absolutely terrible, it only catches only a solid half of your spelling/grammar mistakes and provides horrible corrections.

★☆☆☆☆2026-03-11
Bruce Hoefferle

Not free as stated

★☆☆☆☆2026-03-07
Ellen Ecstacy

show me where to start

★☆☆☆☆2026-02-03
Olivier Lebarbenchon

Doesn't work with the "enable on click" option of Chrome. The Extension end up being very annoying, regularly contradicting itself in an infinite loop: - remove this comma, use a semicolon - remove this semicolon, use a comma

★☆☆☆☆2026-01-23
The Best Movie Moments

Does not check the Russian language

★☆☆☆☆2026-01-16
Younes Alabsi

they are watching us

★☆☆☆☆2026-01-13
Eric Ketzer

I revisited that extension today after several years of using LanguageTool, because that latter is becoming for paying Premium only. Sadly, there is something wrong with this extension here. When it is activated, my browser becomes basically unresponsive. When desativated, my browser is back to normal. I did try 3 times that same processus, and every time the same result. So I can't rated as good, for it freezes my browser.

★☆☆☆☆2026-01-07
furkan kızıldağ

they re foolin people and always wantıng money for ıt

★☆☆☆☆2026-01-02
Thanuja Masakorala

Very Unhappy. Cannot even give one star

★☆☆☆☆2025-12-26
Lombee9 DMS

,n

★☆☆☆☆2025-12-17
Michael Terren

not satisfied thet should brouht offer for students

★☆☆☆☆2025-12-10
Abhinav Dwivedi

hell

★☆☆☆☆2025-11-14
zzanthe kim

so so

★☆☆☆☆2025-11-13
Dan Bridgeman

It sucks!

★☆☆☆☆2025-10-26
Orrin Reece Manikum

This app is not good at all it made me fail me assignment cause it did'nt check grammar and spelling errors. If I could give zero stars I would. ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... I was just kidding the whole time but four stars cause not all languages are supported

★☆☆☆☆2025-09-30
Bedirhan Bayram

useless unless u r just fixing or translating things word by word pops up with this big aaa panel that says "OH IF YOU WANT TO SEE THIS JUST PAY US"

★☆☆☆☆2025-09-25
Erich Reed

I used to swear by QuillBot. A few years ago, the paraphrasing was smooth, natural, and the product delivered real value. That’s why I decided to return as a paying customer. Unfortunately, the product I came back to is a shadow of what it once was. The sentence structuring is clunky, the paraphrasing feels robotic, and the integration with desktop apps is borderline useless. To make matters worse, their refund policy is a trap. Nowhere in their terms is there a clear, strict “three-day cutoff,” yet that’s the excuse they hide behind when you ask for a refund. I reached out less than a month after subscribing, explaining that the product had materially declined since I last used it. Instead of doing the right thing, they hid behind ambiguous wording and refused a refund for a service I clearly will not use. Charging customers for an entire year of a degraded product, while refusing even a prorated refund, is not just poor service, it’s predatory. When companies rely on rigid, arbitrary policies instead of delivering quality and fairness, it shows exactly where their priorities lie: profit over people. QuillBot used to be a leader. Now it’s just another cautionary tale in how to alienate loyal users. If you’re considering a subscription, proceed with extreme caution. There are better tools out there that respect both your money and your time.

★☆☆☆☆2025-09-08
happy hojjat

i can't log in (android browser)

★☆☆☆☆2025-09-02
Edwin Aldrin

doesn't work anymore... it just doesn't detect no matter what i site i type stuff in

★☆☆☆☆2025-08-25
Md Azizur Rahman

from today its not working

★☆☆☆☆2025-08-24
Obed Katonge

It is with great honor and a profound sense of responsibility that I present the Mara Land Use Framework Plan (2024–2044).

★☆☆☆☆2025-07-28
Sansthememe#3648

I just lost months of my work without warning.

★☆☆☆☆2025-07-24
محمد صلاح

amazing

★☆☆☆☆2025-07-20
SIIRMARTIN

very bad. I lost a writing that I spend a lot of time . Don't recomend. You'll lose preciouse time and energy. No login required is a lie

★☆☆☆☆2025-07-15
Adam Noel

It’s honestly ridiculous that QuillBot won’t let you cuss. We’re adults here, not kids who need a nanny. Language is part of how we express ourselves, and blocking swear words just feels so outdated and unnecessary. If I want to swear, let me swear. They seriously need to cut that bull out and stop policing grown-up language like it’s some kind of crime. Come on, QuillBot—grow up and trust your users.

★☆☆☆☆2025-07-04
Hariharan R

why you removed copy button?. Now extension become useless i uninstalled it

★☆☆☆☆2025-06-18
JAY study

Why does it appear again with errors when I've already double-clicked and fixed it? it? And don't make it so annoying premium, ok, man?

★☆☆☆☆2025-06-08
Cursed Dunmer

Causes performance issues when fast scrolling on Twitter and on some other websites when opening a reply message box.

★☆☆☆☆2025-05-24
lorenza

It does not have Italian; it is being racist. It has all the other languages. Not fair, horrible. And when I write in English, it says I wrote it wrong, but when I change it as the error says, nothing changes. Not useful

★☆☆☆☆2025-03-15
sadik mohammed

FANTASTIC APP!!!

★☆☆☆☆2025-03-04
fentanyl enjoyer

actual dogshit, it marks words as incorrect and then corrects itself two seconds after i "corrected" the word

★☆☆☆☆2025-03-03
Andrew Patrick

One of the worst tools I have ever used! It used to be suitable, but not anymore. Now, it will underline random words as errors when they are not errors to anyone with a grasp of grammar. I imported the text today and was shocked at how bad it became after the latest update. If you type the word «this,» it will underline it as a vague pronoun. What? Since when is the word "this" a vague pronoun? Pronouns are NOT vague! It also underlines random sentences as «repeated sentence structure» when they are not repeated. Examples: «That is why my activity is so minimal; I don't want to upload or comment much for these reasons.» ^ According to QuillBot "I don't want to" is a "low engagement?" How is that a low engagement? «I don't know how long this will last, but I hope it will end soon because it has gotten out of control.» ^ According to QuillBot, this is an overused expression. That is NOT an overused expression. «We cannot report plagiarized art; we can't. If you think so, you must then tell the original artist, not us.» ^ According to QuillBot, «if you think so» is a «polite tone.» What is wrong with writing like this? It will do the same if I write «please» at the beginning of the sentence. What is wrong with writing «please?» Why should I use a different suggestion that will alter my expression and be out of context? «After that, I switched to diamond badges because it was easier for me to afford a subscription. After imposing limits on hoarding badges, it has become harder to afford them.» ^ According to QuillBot, this is a «repetitive sentence structure» because it starts with the word «after.» That is not a «repetitive sentence structure.» It's funny how your botched program underlines my sentences when yours starts with «we» three times. So, you can have «repetitive sentence structure,» while I can't. I have spent several minutes looking it up on Google, and no articles have pointed out this nonsense. There's no such thing as low engagement in English grammar. There is no such thing as «weak delivery» in English grammar. A polite tone is appropriate for people who cannot write well or are illiterate! For the test, I used an article written by Nitish Pahwa, a professional editor who works for the digital magazine The Slate Group LLC. And guess what? QuillBot revealed the editor's illiteracy through identical comical mistakes. Unbelievable! I studied the English language from Cambridge, Oxford, and Upstream books for high school. Tables on the last pages point out verb usage, past tense, and other notable rules, not «weak delivery,» «low engagement,» and other garbage! QuillBot, stop sanitizing our precious language and making us all sound the same, illiterate, and artificial. Do we want to live in such a sterile world? No, we don't want to. We want a grammar checker to proofread for spelling, grammar, style, and syntax, not to sterilize our writing and make it sound like a robot! QuillBot: Make your writing painful! Your ideas—butchered writing. Edit: I wrote «What is wrong with writing like this» and QuillBot underlined it as «polite tone,» again. Do not use it! Avoid it! P.S. A bug causes the cursor to jump and makes unwanted edits to your text when you click the "accept all" grammar suggestions button. It also causes the text to collapse or chop. Gross!

★☆☆☆☆2025-02-19
Chuck Baggett ChuckBaggettWeb (ChuckBaggett web)

This thing opened a log in sign up tab in every window when I enabled it, with a side in each, and this seemed crazy and a very bad sign. One sign up log in page is sufficient. I had 12 windows and it made 12 sign up login pages. I uninstalled it. I had used it a tiny bit years ago and it didn't do that.

★☆☆☆☆2025-02-13
moei moei

doesnt work on some google doc.

★☆☆☆☆2025-01-14
Sumit Kumar

you extension is good. but can you add an option to off checks of upper case, and lower case letters , commas and punctuation. i just want ut to check my sentence grammer and spellings. i dont want to check for small mistakes. thats why please add and option to to check and uncheck for what i wanted to check my english. i will rate 5 starts after you get this update.

★☆☆☆☆2025-01-13
Tiphaine Arnould

does not work anymore on overleaf, the only place I really need. and support did not solve the situation. a completely useless purchase... i advice to check that the extension works for several weeks before buying the premium ...

★☆☆☆☆2024-12-03
Kannan Kannan

PGA Show 2025

★☆☆☆☆2024-11-20
Peter Johnstone

Terrible product. Highlight all over your screen, just for you to click on the highlighting: "unlock this feature with premium". It's such a scummy way of getting more attention to premium. I'm sure someone is gonna run the statistics and is gonna tell me it's profitable, but count me out.

★☆☆☆☆2024-10-25
Veronica Rodriguez

its the worst program. you expect use the program when you pay but then you have to pay addicionals to use the program! I will never try it again.

★☆☆☆☆2024-10-24
Sirus Bertram

It's bad at its job and always gives incorrect grammar feedback, use something else if you need to work on typing because this is just not it.

★☆☆☆☆2024-10-23
Orionis Systems

my input was : you willhave to revosed the feedbacl fist, then I will refund output i got : You must first revose the feedbacl before I will issue a refund. rediculous , cant even fix spelling mistakes.

★☆☆☆☆2024-10-22
Lien Nguyen

This app helps me a great deal. It improves my writing and my grammar skills. Thank you so much.

★☆☆☆☆2024-10-20
Karhn Orhn

Only uses American English

★☆☆☆☆2024-10-19
taopik

Very bad!

★☆☆☆☆2024-10-02
Shifoint 4DC

Extremely disappointed, this program did not work or function correctly at all in my computer. It would only work when it wanted to but not when i wanted to spell check. I gave up on it after two weeks of tweaking with it.

★☆☆☆☆2024-09-24
garima invedus

Earlier it was good but now to increase sales it not even correcting the grammar. In additions it is not compatible with the Google Docs.

★☆☆☆☆2024-09-04
J. S. (darkocean)

The spellchecker doesn't work at all, the little bubble that shows up keeps reloading like it's having a spaz attack, so I tired the side bar all that did was rephrase that added unneeded words that I'd worked hard to TAKE out of my writing. This needs a lot of work. Please fix the spell checker and make the paraphrase tool to be more concise and not add in superfluous words. Simplicity is key (usually, not always) for carrying ideas and thoughts forward while keeping a good flow from one idea/paragraph to the next. I just want a simple spell checker to help me with my dyslexia, that's all. *sigh* I know this paragraph looks nice, but it took me several minutes.

★☆☆☆☆2024-08-30
Sameer Ghode

i liked this but why is it not working on opera browser?

Permissions (8)

Permissions

activeTab Can access the current tab when you click the extension alarms Can schedule periodic background tasks contextMenus Can add items to the right-click menu cookies Can read and modify browser cookies notifications Can show desktop notifications scripting Can inject scripts into web pages sidePanel storage Can store data locally in your browser

Details

Version 4.70.0
Updated Mar 23, 2026
Size 20.52MiB
First Seen Mar 27, 2026