You’ve probably heard of QuillBot, right?

It’s famous. Lots of people use it to fix their grammar or change their sentences. It’s a powerful tool for that one job.

But what happens when you need more than just a quick fix? What if you need a real cowriter? Someone who can help you write a whole email, not just fix one sentence.

Here’s the problem with most AI tools: they sound like robots.

You ask for help, and you get a plain, boring message. It has no personality. It doesn't sound like you.

This is where Jetwriter AI comes in.

Jetwriter AI is different. It’s a writing partner that you can actually teach. You can tell it about your job. You can show it how you like to write. It learns your unique voice.

So when it helps you, it sounds just like you.

In this blog, we’re going to put QuillBot and Jetwriter AI side-by-side. We will show you why QuillBot is a good tool, but Jetwriter AI is a much better partner for all your writing.

QuillBot: Paraphrasing & Grammar Checker

You’ve probably seen QuillBot around. It's like a famous, high-tech dictionary and grammar guide all in one. A lot of students and writers use it. Its main goal is to improve your writing. It helps you fix mistakes and find new ways to say things. It also offers various tone correction options, so you can change your writing to sound more professional, friendly, or simple. It's all about making your text sound just right, so you can write confidently.

Here are the main tools it gives you to do that:

• Paraphraser: This is the big one. It's what QuillBot is most famous for. You paste in a sentence or a whole paragraph that you don't like. Maybe it sounds clumsy, or you feel like you're using the same words over and over. You click a button, and QuillBot rewrites it for you. It shows you a bunch of new ways to say the same thing. This lets you look at all the options and pick the one you like best.

  

• Grammar Checker: This is a very smart spell-check. As you write, it looks for all kinds of mistakes. It finds bad spelling, wrong punctuation (like a missing comma), and grammar errors. For example, if you write, "Me and him goes to the store," QuillBot will see the mistake. It will suggest changing it to something correct, like "He and I go to the store." It's a safety net to catch those little mistakes before you hit "send.”

  

• Multiple Ways to Fix a Sentence: This is a really cool part of QuillBot. It's not just for big mistakes. What if your sentence just sounds... weird or "clunky"? QuillBot helps with that too. It gives you different "modes" to fix it. For example, you can click a button to make your sentence sound more Formal (great for writing to your boss) or Simple (to make sure anyone can understand it). It gives you a lot more choices than a normal spell-check.

  

• Other Handy Tools: QuillBot puts a few other helpers in its box, too. Its Summarizer can read a really long, boring article and shrink it down into just the main points. The Translator can take your writing and change it into a different language. And for students, it has two special tools. The Plagiarism Checker scans your paper to make sure you didn't copy someone else by accident. The Citation Generator is a lifesaver for research papers. It helps you build that perfect list of sources for your teacher.

Jetwriter AI: Your All-in-One Writing Partner

Jetwriter AI is built to be your all-in-one writing partner. Think of it like a real, helpful assistant who sits next to you while you work.

It's very different from tools that only fix writing. It’s not just for correcting old sentences you already wrote. Jetwriter AI is for helping you write brand new things, right from the start.

Do you have a blank page and don't know what to write? Jetwriter helps you brainstorm. It helps you write the first draft. It's with you from the very first idea all the way to the final "send."

And the best part is, it works everywhere you do. You don't have to copy your text, go to another website, paste it, and copy it back. That's a huge waste of time! Jetwriter is right there inside the websites you use every day, like on Gmail, LinkedIn, or any other site. It follows you around, so it's always ready to help.

Just select any text right on the page you're on. The moment you do, a small menu appears right next to your words, which puts all of Jetwriter's power in one simple spot. With just one click, you can tell Jetwriter to:

• Spelling & Grammar Fixer: Think of this as your personal proofreader. Just like a good helper, Jetwriter AI is always watching for any grammar, spelling, or punctuation mistakes. Even small errors can look unprofessional. This tool helps you clean up your text, making it polished, clear, and easy to read. It's a simple way to make sure you always make a great impression.

• Improve Writing (Rephrasing & Tone): This is a really smart tool. If you write a sentence but it just doesn't "sound right," Jetwriter can help. You can ask it to rephrase your text to find a better way to say it. Or, you can change the tone. You can make your writing sound more friendly, more professional, more confident, or even more casual, all with one click.

• Summarizer: Got a very long email or a big article you don't have time to read? Don't worry, you don't have to read every single word. Just ask Jetwriter to summarize it. It will read the whole thing, find all the key information, and give you just the main points in a few simple sentences. It's a huge time-saver.

• Translator: This tool helps you break down language barriers. It lets you write in one language, like English, and have it come out in another one, like French or Japanese. This is great for talking with people all over the world. You can write your message with confidence, knowing your friends, colleagues, or customers will understand you perfectly.

• Smart Replies (Deep Integration): This is where Jetwriter AI really shines. It's not just a button that sits in your browser. It connects deeply with sites like Gmail, LinkedIn, Freshdesk, and Outlook.

  • What does this mean? When you open an email in Gmail, Jetwriter AI reads the entire conversation. It understands the context.
  • So, when you need to reply, you don't have to copy and paste. You can just tell Jetwriter, "Tell them I agree and ask for a meeting next Tuesday."
  • It will write a perfect, smart reply that makes sense because it knows what you're talking about. It’s like a helper who has been reading your email for you.
  

  To learn more, read our detailed blog on How Jetwriter AI works inside Gmail.

  

  To learn more, read our detailed blog on How Jetwriter AI works inside LinkedIn.

  

  To learn more, read our detailed blog on How Jetwriter AI works inside Freshdesk.

  

  To learn more, read our detailed blog on How Jetwriter AI works inside Microsoft Outlook.

Personalization: : Quillbot vs. Jetwriter AI

This is the biggest, most important difference between these two tools.

QuillBot does try to help you change your tone. It gives you different "modes" to choose from. You can pick options like "Formal," "Simple," or "Creative."

This sounds like a nice feature, but it's a one-size-fits-all solution.

Think about it for a second. When you click that "Formal" button, you sound like every other person who also clicked "Formal." It gives you a standard, generic, robot voice. It doesn't know your special way of sounding formal. It's not your voice.

Jetwriter AI, on the other hand, is built to do the exact opposite. It is designed to learn your unique voice. Here’s how it works:

"Personalize AI" (Teach Your Assistant)

This is a total game-changer. Think about hiring a new human assistant. On the first day, you would tell them about your job, right?

You'd say, "I'm a support manager. I need to be empathetic but also concise." Or, "I'm a marketer. I need to sound upbeat and use emojis."

The "Personalize AI" feature is where you have this exact chat with your AI. You tell it who you are and how you like to write. From then on, every response it generates is smarter and sounds a lot more like you.

Custom Writing Styles

This feature is really fun. Think of it like having different outfits in your closet. You have a formal outfit for a big meeting and a casual one for your friends.

This feature lets you create and save different "outifits" for your writing.

• You can make a "Formal Client Reply" style.
• You can make a "Friendly Team Update" style.
• You can make a "Concise and Direct" style.

Once you save a style, it's just one click away. You don't have to type "make this formal and polite" every single time.

Prompt Templates

Do you ask your AI to do the same thing over and over? Maybe you're always asking it to "Translate this to Japanese and be very polite" or "Turn this into 3 bullet points."

With Prompt Templates, you can save these commands. They become like your own personal speed buttons. One click, and the job is done.

The Verdict: QuillBot changes your voice to match its robot modes, whereas Jetwriter AI learns your voice so it can be your perfect helper.

Language Support

What happens when you need to write in a language that isn't English? For many people, this is a huge deal. Let's see how the two tools handle it.

QuillBot's "Fragmented" Support

QuillBot's language support is not the same for every tool.

• Its Translator can handle 52 languages.
• Its Paraphraser (the main tool) works with 25 languages.
• Its Grammar Checker (a very important tool) works in 6 languages.
• Its Summarizer is built for English only.

What does this mean for you? It means you might be able to translate something into French, but then you can't check the grammar for it. That's a broken and confusing experience.

Jetwriter AI's "Global" Support

Jetwriter AI's way is super simple: it supports all languages.

How? It uses its powerful multi-model "engine". If you tell Jetwriter to talk in French, German, Japanese, or Hindi, it just does.

There are no barriers and no exceptions.

This means you can use all of its tools - Grammar Fix, Summarize, Improve Writing - in almost any language you need.

This is not just a small feature. It changes how you can use the tool every day.

• For Business: Imagine you need to write an email to a new customer in Germany. With Jetwriter, you can write your email and ask it to "Translate this to formal German." Then, you can ask it to "check the grammar". You can be confident your email is perfect.
• For Education: What if you are a student learning Spanish? You can write your homework in Spanish and ask Jetwriter, "Improve this paragraph to sound more natural." It helps you learn much faster than a simple spell-check.
• For Personal Use: Maybe you are just talking to a friend in Brazil. You can write your message and ask Jetwriter to translate it into fun, friendly Portuguese. It just works.

The Verdict: If you only write in English, QuillBot is fine. But if you work, study, or have friends in other languages, Jetwriter AI is the clear and simple choice.

Ease of Use

How a tool feels to use every day is super important. Does it help you, or does it just get in your way?

Quillbot

QuillBot works a lot like an old-school grammar checker. As you type, it is constantly working. It puts those wavy red and blue underline marks all over your page.

For many writers, this is very distracting.

It’s like someone looking over your shoulder and pointing out every tiny mistake, while you are still writing!

This can break your "flow state." That's the feeling you get when you are focused and the ideas are coming easily. With QuillBot, you end up fixing mistakes instead of forming ideas.

Jetwriter AI

Jetwriter AI is built to be the exact opposite. It is non-intrusive.

This means Jetwriter AI stays out of your way until you need it. It doesn't underline anything. It doesn't interrupt you. It lets you write and think in peace.

So, how do you get help?

When you are ready, you just select the text you want to check.

The moment you do, a small "Quick Actions" toolbar appears. This is a simple, on-demand menu. From there, you can ask it to "fix grammar," "summarize," "translate," or anything else.

When you're done, the menu goes away.

This is a much better way to work. It means you are always in control. The AI is your helper, not your boss.

Power & Performance

When you get a new tool, you want two things. You want it to be powerful (it can do the job well) and fast (it doesn't slow you down).

Power

This is about the "brain" the tool uses to help you.

QuillBot

QuillBot uses its own special AI. This is a "locked box." You get one engine, and that's it. It's a good engine, but it's your only choice. You have to hope that its one brain is good at every single task you give it.

Jetwriter AI

Jetwriter AI does something much smarter. It lets you pick the best engine for the job.

It's like having a garage full of the world's best, most powerful AI models. You can switch between:

• GPT-5
• Claude
• Gemini

Why is this so much better? Because some engines are better at certain tasks. Maybe Claude is great for writing creative stories. Maybe GPT-5 is a rockstar at writing email replies.

With Jetwriter AI, you are not stuck. You can always use the newest, smartest, and best-in-class model for whatever you are doing.

Performance

This is about how the tool affects your computer's speed.

QuillBot

QuillBot's browser extension is very heavy.

What does this mean for you? It can slow your browser down. You might feel a "lag" when you're trying to type or open new tabs. It's like trying to run with a heavy backpack on.

Jetwriter AI

Jetwriter AI was built to be the exact opposite. The extension is tiny and ultra-lightweight (less than 1MB!). This means it's fast. It's instant. It will not slow your browser down.

It's a simple, snappy tool that works right when you need it, with no lag and no waiting. When it comes to speed, it's not even a fair fight.

Pricing, Privacy & Support

This is a big one. How much does it cost? And can you trust it with your private info?

Let's look at the things that really matter for any professional.

Pricing

QuillBot has a standard subscription. You pay one price ($9.95 per month), and you get its tools.

Jetwriter AI is different, and it can save you a lot of money.

1. First, its subscription plan is cheaper than QuillBot's.
2. It Has "Bring Your Own Key" (BYOK): This is the amazing part. If you are a "power user" and already have your own API key (like from OpenAI or another AI company), you can plug it right into Jetwriter.

What does this mean? It means you can use Jetwriter AI for a tiny fraction of the cost. You get all the cool features of Jetwriter without paying for the AI, because you're bringing your own.

Verdict: Jetwriter is more flexible and can be much cheaper for power users.

Privacy

When you use an AI tool for work, you are pasting in private emails. Client info. Company secrets. Who is reading that?

QuillBot's policy says it uses your data for training by default.

This means your writing, your emails, and your ideas can be used to teach their AI. You have to find the setting and ask them to stop. You have to "opt-out."

Jetwriter AI's promise is clear, simple, and non-negotiable:

Your data is never used to train AI models. Period.

What you write is yours. It's private. They don't look at it. They don't sell it. They don't use it for training.

Verdict: For professionals, or anyone who writes sensitive emails, this is not a contest. Jetwriter AI wins, easily.

Support

When a tool is part of your job, you can't be stuck for long.

With many tools, you have to find a "Help Center." You search through articles. You fill out a support form. You wait 24 (or 48!) hours for an email back. It's slow.

Jetwriter AI knows you are busy. It has one-click customer support right inside the tool.

You click a button, and you can get help from a real person. Or you can contact them by sending an email at support@jetwriter.ai .

Verdict: If you are a business user who needs help fast, Jetwriter's support is built for you.

Conclusion

So, what's the final choice for you?

When you look at them side-by-side, the answer is pretty simple.

QuillBot is a powerful tool. It is very, very good at one or two specific jobs, like paraphrasing a sentence or checking an essay.

Jetwriter AI is a complete assistant. It's like having a helpful partner who sits next to you all day. It helps you with everything - from the first blank page to the final, perfect reply.

Who is QuillBot For?

QuillBot is still a good choice for a few people:

• Students: It's almost perfect for school. The paraphraser, citation generator, and plagiarism checker are all built to help you write essays and research papers.
• Casual Users: It's great for someone who just needs to reword one quick email or a single paragraph to make it sound different.

Who is Jetwriter AI For?

Jetwriter AI is built for people who write all day, every day.

• Professionals & Founders: This is for people who need to write faster, but still need to sound like themselves. It helps you keep your personal or brand voice in every single email.
• Marketers, Sales, & Support Teams: Jetwriter is a must-have for these teams. It can write smart, on-brand replies because it understands the context of your past emails.
• Anyone Who Cares About Privacy: This is a big one. If you cannot (or will not) risk your private emails or secret company data being used to train an AI, Jetwriter is the clear and safe choice.

Write better, faster, and always in your own voice.

Give Jetwriter AI a try for free and see how easy it can be.

Frequently Asked Questions (FAQ)

Can I use both Jetwriter AI and Quillbot at the same time?

Yes, you can install both browser extensions. Some users might even find value in using both since they approach writing differently.

Do Jetwriter AI and QuillBot offer free trials?

They have slightly different ways to let you try them for free.

• Jetwriter AI: Yes, it offers a free plan. You can sign up and use it right away to get a limited number of responses per month. This lets you try all the features, including personalization. You can also use your own API key.
• QuillBot: No, it does not have a "free trial" of its Premium features. It has a permanent "free plan" that is very limited (for example, you can only paraphrase 125 words at a time). To try the best features, you have to purchase a plan.

Can a grammar checker (like Quillbot or Jetwriter AI) replace a human proofreader?

No, an AI grammar checker cannot fully replace a human proofreader. The AI tool is great for quickly catching small, mechanical errors like spelling and missing commas. A human is different because they can understand your big ideas and meaning, so for any important project, it's always best to have them check your work after the tool is done.