Frequently Asked Questions. Please find answers to several FAQs below. If you still have questions, feel free to reach out to us.

Frequently Asked Questions

Paraphrasing

Learn about QuillBot features.

Premium & Pricing

Find answers on billing, payments and more.

For Students & Educators

Learn best practices on using QuillBot in the classroom.

Extensions & Add-ins

Instructions on incorporating extensions in text editors.

API Services

Dive into the details and pricing to the QuillBot API.

Common Troubleshooting

Troubleshoot common issues with application.

Troubleshooting Extensions

Troubleshoot common issues with extensions and plug-ins.

Privacy and Security

Best-in-class security safeguards your personal information.

Paraphrasing

QuillBot was created as a full-sentence thesaurus to help students and professionals write faster and with more confidence. Our users have found many creative ways to utilize our product, which has included preparing doctoral theses, crafting legal emails, and document translation among others!

There are no guarantees copied material will pass a plagiarism detector, which means that if you do choose to plagiarize using this software, you do so at your own risk, and you are solely responsible for the results. You should always cite the work you use and follow best practices as recommended by your institution or employer.

QuillBot uses machine learning to understand and improve on the paraphrases it makes, and like a human, it can make occasionally make mistakes based on the training data and human input we had it learn from.

Common Causes of Errors

There are a few mistakes in text that can consistently cause errors in paraphrasing:

  • No space after a period: If you end a sentence with a period, but do not put a space between the period and the first word of the next sentence, our model will assume it is one sentence
  • Mixing English and non-English letters: If you have a sentence that incorporates non-English letters being used as English letters (such as letters from the Cyrillic alphabet) you will receive errors in your paraphrasing.
  • Line breaks: If you have a line break in the middle of a sentence, our model will treat it as two separate sentences instead of one, which will alter the meaning.

We are constantly training our AI to help reduce the amount of mistakes QuillBot makes while also ensuring that the results you get read well and feel natural. If an error is showing up regularly, please contact us so we can investigate the issue.

Modes are a setting that modifies what the QuillBot AI will focus on when you paraphrase something. Each mode has specific things it will focus on doing to your text.

There are five modes total:

  • Standard Mode: Standard mode serves as our default mode. This mode balances the changes it makes to your text with keeping the meaning intact and making it sound as natural as possible.
  • Fluency Mode: This AI mode focuses on making your text sound as natural and grammatically correct as possible in the English language. This means that it will make the least amount of changes to your text, but will preserve the original meaning well. Note that selecting this mode will also put the Word Flipper onto the lowest possible setting.
  • Creative Mode: The Creative mode AI focuses on changing as much as possible in your input text. However, this can result in the meaning or overall coherency of the results being altered. This mode can be useful if you want to see something very different from your original text.
  • Suggestive Mode: This mode makes significant changes in your text, but will not make as many changes as Creative. It is best thought of as a middle ground between Creative Mode and Standard Mode.
  • Concision Mode: This mode tries to shorten your text as much as possible while retaining the meaning in it. Concision mode is very useful if you are seeking to lower the word count or overall size of your text.

Free users can access Standard, Fluency, and Creative mode. Suggestive and Concision are only available with a premium subscription.

The Word Flipper is a tool that modifies the number of words replaced by synonyms in your paraphrasing results. You can choose to replace more words or less words by adjusting the corresponding slider. A more aggressive word flipper setting can affect the accuracy of a sentence.

Premium & Pricing

There are two types of QuillBot accounts:

  • Free account: A free account is one created by a user, which is free to use. These have access to three modes, three word flipper settings, and may paraphrase up to 1,000 characters at once. They may also summarize 5,000 characters at once. They may also use available extensions.
  • Premium account: A premium account is an account that has a paid subscription associated with it. These accounts get the same features as free users, as well as additional features only available to premium users.

The benefits premium account users get include:

  • Increased character limit: Premium accounts may paraphrase up to 10,000 characters at once, and summarize up to 25,000 characters at once.
  • Two additional modes: Suggestive and Concision mode are unlocked with a premium account.
  • The highest Word Flipper setting: The highest setting lets you replace the most words possible using the Word Flipper
  • Faster processing: Premium accounts have their text paraphrased faster.
  • Compare Modes: This feature allows you to see a single sentence in multiple modes at once to compare results.
  • Freeze Words: The ability to prevent the paraphraser from changing certain words or phrases.
  • Show longest unchanged words: This allows you to see the longest section of your text that remains the same as the original after paraphrasing.

You can purchase a premium account by visiting the premium page.

There are two ways to cancel a premium subscription: either going to your account page, or contacting us directly.

Unsubscribing on the Account page

To unsubscribe on the Account page, follow these steps:

  1. Click on the three line menu at the top right of the webpage.
  2. Select the "Account" option in the drop-down list.
  3. Under the "Your Plan" section, click on the unsubscribe button.
  4. NOTE: If you use this option, you will not immediately cancel your account, but set it to expire at the end of your billing period. If you want to cancel immediately or want to request a refund, please contact us.

Contacting us directly

You may contact us directly by going to the contact us page and submitting a support ticket. One of our customer support representatives will assist you further.

Please contact us so we can assist you.

Please contact us so we can assist you.

Yes. Unsubscribing on the account page simply disables renewal so your account expires at the end of your billing cycle. You will have access to the premium features until your current billing cycle ends.

You can change your premium plan by unsubscribing and then resubscribing to your preferred plan after your billing period ends. If you have an urgent need to change your plan, please contact us .

Yes. Simply purchase a monthly subscription and then unsubscribe on your account page, and your account will only last a single month.

For Students & Educators

Teachers expect students to practice integrity and academic honesty, and so does QuillBot. Teachers want students to form original and authentic ideas, and they expect students, especially those in college or university, to cite their sources properly. Distinguished professors have lost their job over this! QuillBot promotes the use of citations which credit the author and conform to the various accepted styles used by educators, such as MLA, APA, and the Chicago Manual of Style.


Essay Best Practices
  • Allocate time for research, writing and editing your work
  • Take good notes and follow your teacher’s note taking guidelines
  • Record original work URLs in your research to use for citations
  • Take the time to fully understand your paper’s concepts and main points
  • Use QuillBot to help paraphrase your own work
  • Cite all sources wherever they come from: traditional resource, a peer’s paper, QuillBot, and videos

You can also read the QuillBot blog for more information and tips on writing successfully in your courses.

QuillBot helps students with a variety of needs. QuillBot has you covered whether you want your students to expand their vocabulary, help streamline the writing process, or simply to demonstrate the variety and fluidity of language.

Extensions & Add-ins

You can read instructions on how to install our Word extension by going to the Word Installation page here.

Visit our Chrome Webstore page and follow the instructions to install the Chrome extension.

Visit our page on the G Suite Marketplace and follow the setup steps. Press the Install button and open a Google Docs page. In the menu, click on Add-ons and select Launch QuillBot then enter your ID and password.

Please follow these steps:

  1. Close Office
  2. Restart the add-in
  3. Install the add-in again
API Services

The API is available so that individuals who can find an interesting use for our AI can implement it in ways outside of our website.

Our API can be purchased through our partner, RapidAPI. You can purchase it by going to our page on their website, located here .

Our API is available in three plans; Pro, Ultra and Mega. Plans are priced on monthly usage by the number of characters Paraphrased. We offer custom pricing for solutions outside of our current plans.

Common Troubleshooting

This error appears when our system detects multiple active sessions on your account. This can be caused by one of the scenarios below:

  • Using QuillBot on multiple browser windows simultaneously. Make sure you close any additional windows with QuillBot open.
  • Your account may be compromised and others are using it. You can change your password by going to your account page.
  • You are sharing your account with other people. This is a violation of our terms of service and could result in your account being banned.
Troubleshooting Extensions

Problems installing the app are often due to not being logged in to Microsoft Word. Start with signing in to Word then follow the steps starting at the top of the page.

These issues can be resolved by adding a password in QuillBot’s settings. Please follow the steps:


  1. First, login into your account via Facebook or Google
  2. Next, Go to your QuillBot Account and Add Password
  3. Fill out the "Add Password" section
  4. Try logging into the add-in with your email and password

Contact us if you’re still having issues.

Disable or whitelist your firewall. This can be on either Microsoft Edge, Internet Explorer, Safari, or the computer itself. If this does not work, try disabling the ad blockers on these browsers.

Disable or whitelist your firewall. This can be on either Microsoft Edge, Internet Explorer, Safari, or the computer itself. If this does not work, try disabling the ad blockers on these browsers.

Confirm that Internet Explorer is not running in Compatibility Mode. Go to Tools > Compatibility View Settings.

Make sure that the browser supports HTML5 local storage, or reset your Internet Explorer settings. For information about supported browsers, see Requirements for running Office Add-ins.

This is an error affecting users due to a Microsoft update. In our redesign, we were required to use a new API in Word due to Microsoft requirements. However, due to a Microsoft update, certain segments of users are unable to connect properly to our extension in Word.
Our working theory is that users who are in one or more of these categories are being affected:

  • Non-subscription versions of Office for Windows. This means cracked/illegally obtained versions of Word, as well as Word instances that have not been activated with a product key.
  • Office running on versions of Windows 10 lower than 1903.
  • Versions of Office lower than 16.0.11629. If you are in one of these categories, please update your version of Office, Windows, or activate your copy of Word. Additionally, please ensure that you are logged into a Microsoft account when attempting to use the extension. If you are unable to do this, be aware we are working on a patch to assist these users.
Privacy and Security

QuillBot takes security and member privacy very seriously and operates in accordance with all applicable privacy and data protection laws. The company employs best-in-class physical, technical and administrative controls to protect personal information as well as cutting-edge security technology from Google. You can learn more about QuillBot’s use and protection of personal information by reading the Privacy Policy and Terms of Use.

No, QuillBot does not share your personal information with third parties of any kind. We will never disclose your personal information to other businesses.