Is QuillBot safe? What it stores, trains on, and reads in your browser

The Morse teamPublished October 28, 202611 min read

As of October 2026, QuillBot is safe to use in the sense that it's a genuine product from an established education company, but it isn't private: Learneo, Inc., which runs QuillBot alongside Course Hero, keeps the text you put into QuillBot's tools, trains its AI models on your inputs unless you have an account and opt out, and stores what you write through its browser extensions by default. Learneo's terms of service, updated August 21, 2026, also give it a perpetual license to use your writing, for example "to train a machine learning algorithm or model, including after your User Account has been deleted or deactivated" (Learneo).

We read QuillBot's privacy policy (updated August 17, 2026), its service terms, Learneo's terms of service and list of services, QuillBot's trust center, its Chrome Web Store listing, and about 30 articles in its help center on October 28, 2026. This page is about your data, not about whether your school allows QuillBot for coursework, which is your instructor's call. QuillBot deserves credit for its help center, which answers in plain words what its training data is, where it came from, and how long it's used.

QuillBot's privacy at a glance

Read October 28, 2026.

Does QuillBot store your work?

Yes. Learneo's privacy policy for QuillBot covers "any content that you provide, upload, or otherwise make available to us" in any feature, including text, files, prompts, "any resulting outputs," and "the associated metadata (like your IP address or User ID, or URL source data when you copy content into our Services)" (QuillBot). That definition makes no exception for the Paraphraser, Grammar Checker, Summarizer, Translator, AI Detector, or AI Chat.

The policy gives no period for your text. Learneo keeps personal data "for as long as you have an open account with us, and for a commercially reasonable period" after that, and "Applicable storage periods are determined on a case-by-case basis" (QuillBot). It says some features may let you opt out of storage, and warns that "Opting out of data storage may limit functionality."

AI Chat gets its own paragraph in the policy. Learneo says it will "collect, monitor and record the contents of your chat communications," that its service providers do the same on its behalf, and that it "strongly" advises you not to type personal data into chat fields (QuillBot).

What each QuillBot tool shows in its history

A tool's history panel shows what you can open again, which can differ from what Learneo keeps. From QuillBot's help center, read October 28, 2026:

The Summarizer and Translator have no history panel, but the privacy policy's definition of your content still covers what you paste into them. Clearing a history entry removes it from your view; none of these help articles says it removes Learneo's copy.

Does the QuillBot AI detector store your text?

It saves your scans where you can see them. QuillBot's help center says your past "scans and reports are saved" under the AI Detector's history (QuillBot). Text you check falls under the same privacy policy as any other input.

A shared report is open to anyone who has its link. QuillBot says that with link sharing on, "anyone with the link can view your AI detection report" (QuillBot). Other people can flag a shared report, and QuillBot's "moderation team reviews the report" (QuillBot). If you check an essay before you hand it in, download the report instead of sharing a link.

Does QuillBot use your writing to train AI?

Yes, unless you opt out, and only account holders can. QuillBot's help center says your inputs and usage data are "used for both (1) training to improve the services generally and (2) personalizing the service to you" (QuillBot). Learneo's privacy policy goes further: it "may use all of the data we collect (including your personal data) to train our algorithms, AI models and AI products" (QuillBot).

The help center places the opt-out in the browser extension. For extension versions 4.37.0 and later, QuillBot offers one control to stop storing your text inputs, open to all users, and one to stop training on them, "available to account-holders" (QuillBot). To change them, open the extension's settings or popup menu, click View All Settings, and go to Data and Privacy. QuillBot says a change applies "from that point forward," so text you've already sent isn't covered. The help center doesn't say whether these switches also govern what you paste on quillbot.com, so check your account settings there too.

Team Plans start with training off. Learneo says it "will not use your text inputs for the purposes of training our AI models" for QuillBot Team Plan users, with no action needed (QuillBot). The same policy says Learneo "does not use inputs from any LanguageTool user (Individual or Team Plan)" to train, so its other grammar tool gets that promise on every plan. Individual QuillBot users get an opt-out instead.

QuillBot's own staff annotate some user data. Its training-data answers say its annotated datasets were made "by internal specialists who annotate user data" (QuillBot). User data in training "may contain personal or sensitive information," though QuillBot says it pseudonymizes "certain sensitive fields" automatically first (QuillBot). It typically trains on data collected "up to 24 months before the model training begins" (QuillBot). QuillBot also says its standard policy bars outside service providers from training their own AI models on your data (QuillBot). To compare QuillBot's default with other AI apps, see which AI companies train on your data.

Is QuillBot safe to add to Chrome?

The extension is genuine, and it can read more than the box you type in. Its Chrome Web Store listing, read October 28, 2026, shows a "Featured" badge, 6,000,000 users, and version 4.123.0, updated October 23, 2026 (Chrome Web Store). Its privacy disclosure there says it handles personally identifiable information, personal communications, location, and website content (Chrome Web Store).

Learneo's privacy policy says content from the extensions includes "the content of websites visited," and, depending on the service, "the content and metadata of all websites you're visiting during your active browser session (e.g. website text, media, publisher and author names, URLs)" (QuillBot). The store listing says QuillBot "processes only what's needed to provide suggestions."

Storage became the default in November 2025. Before QuillBot's November 8, 2025 policy update, the extension asked for consent to store your text. Since then, QuillBot stores text inputs "for all extensions users by default, with the ability to opt out" (QuillBot). For users in Europe and the UK, the legal basis changed from consent to "legitimate interest."

In Google Docs, the extension works only while you're signed in to QuillBot (QuillBot), so what it checks there is tied to your account. You can set Enable Quillbot to No for the current website from the toolbar icon, and QuillBot says its widgets then stop appearing on that site (QuillBot).

The other apps follow the same policy:

• Word add-in: it "connects to Quillbot's online servers to process your text" and needs a QuillBot account (QuillBot). Microsoft's own AI in Word is covered in does Microsoft Word train AI on your documents.
• Phone keyboards: the privacy policy says content "may include the text, media and attachments in chat messages you write and receive in any application you choose to connect (like when you use our mobile keyboard applications)" (QuillBot).
• Desktop apps: QuillBot said in November 2025 that it will "store text inputs from all desktop users" in the future, and will notify you and offer the extension's controls when it does (QuillBot).

Who owns QuillBot, and who else gets your text?

Learneo, Inc. owns and operates QuillBot, according to QuillBot's terms of service (QuillBot). Learneo's services also include Course Hero, Scribbr, LanguageTool, LitCharts, and Symbolab (Learneo). The privacy policy lets Learneo share personal data with "affiliated business entities" and use it to "co-market, co-promote or cross-sell the Learneo Services" (QuillBot).

Service providers and analytics companies get some of your content. The policy's sharing table lists both as recipients of "Personal data contained in any of your Content" (QuillBot). It also says Learneo runs session replay tools from Fullstory, Amplitude, and Microsoft, which "may automatically collect" mouse movements, clicks, and "Keystrokes (not for sensitive fields like passwords or credit card information)." Google Analytics and Amplitude collect analytics data too. How this kind of tracking works across AI apps is in do AI chatbots share your data with trackers.

Can you delete your QuillBot data?

Only by asking. QuillBot's help center says users "cannot delete their accounts directly through the website" and must send a request through Learneo's privacy webform (QuillBot). Once you ask, access is "immediately restricted," and the account is deleted "following the standard processing period," which QuillBot doesn't define (QuillBot). A deleted account "cannot be recovered or reinstated" (QuillBot). You can also email privacy@learneo.com (QuillBot).

Deleting your account doesn't end the license in Learneo's terms. By submitting content, you grant Learneo, its service providers, "and other users" a "worldwide, non-exclusive, perpetual, royalty-free, irrevocable" license to it, and the terms say it may be used "to train a machine learning algorithm or model, including after your User Account has been deleted or deactivated" (Learneo). The same clause says content that counts as personal data "shall only be used and retained in accordance with Learneo's Privacy Policy," so a privacy deletion request still matters for anything that identifies you. This isn't legal advice.

Is QuillBot secure, and has it had a data breach?

QuillBot lists compliance programs rather than audit reports. Its trust center names PCI DSS for payments, a Cloud Application Security Assessment (CASA) Tier 2 verification, and certification under the EU-U.S. and Swiss-U.S. Data Privacy Frameworks (QuillBot). The trust center we read listed no SOC 2 or ISO 27001 certification. The privacy policy describes "commercially reasonable steps," such as vulnerability scanning and least-privilege access, and says "no method of transmitting data over the internet or storing data is completely secure" (QuillBot). The help center says "Our connections are encrypted" (QuillBot).

We found no breach or security incident notice in QuillBot's help center, its trust center, or Learneo's legal pages as of October 28, 2026.

QuillBot promises to warn you before it hands your data to the government. Learneo discloses user information "in response to a valid court order or government requests supported with legal process," and makes "reasonable efforts to notify the affected user" by email first, unless the law forbids it or there's an emergency (QuillBot).

How Morse keeps your essays on your own device

QuillBot's three hardest problems share a cause. What you write ends up on Learneo's servers, tied to your account, under a license with no end date. The extension adds what it reads on other sites, the AI Detector can turn an essay into a public link, and closing your account leaves the license in force. On Morse, a rewrite you ask for is saved in your browser's own storage, encrypted. Morse's servers don't keep your messages, and your account holds just your sign-in details, plan, balance, and a usage ledger with no content.

On Morse:

• The license that outlives deletion. Morse doesn't train AI on your essays, sell your data, or show you ads (privacy policy). When you delete your account, your chats go with it, and Morse can't bring them back, so save the final version of your essay somewhere of your own.
• The extension that reads other sites. On Morse, you pick the paragraph yourself and paste it into a chat. Morse runs no advertising trackers or third-party analytics.
• Where the draft sits. A chat about your draft lives in your browser, and signing out locks it. Opening it again needs a key kept on your device plus one our server issues at sign-in.

Choose the mode by what the paragraph is:

• Private, for the paraphrasing and rewording you'd otherwise send through QuillBot. New chats open in Private, on open-weight models such as DeepSeek, Kimi, and GLM. Morse has zero data retention agreements with its inference, search, and other providers, so those providers have agreed to keep nothing. Where a provider confirms zero retention on every reply, Morse checks each one and turns away any reply that lacks it.
• E2EE, for a personal statement you'd rather no company read, QuillBot included. Before the text leaves your device, your browser checks the enclave's hardware attestation, then seals the message so that enclave alone can open it. Our servers pass along ciphertext they can't read, and that protection rests on the enclave hardware and attestation working as designed. E2EE is part of Pro, at $19 a month.
• Anonymous, for running a paragraph past GPT, Claude, or Gemini in place of QuillBot's AI Chat. Morse's proxy removes your account, email, and IP address and forwards the paragraph in Morse's name, and the provider sees the text without knowing it's you. That provider may hold it for a limited time to check for abuse, under its own policy, so cut student IDs and classmates' names before you send.

Morse accounts are for adults, who confirm at sign-up that they're 18 or older. For longer manuscripts, see private AI for writers.

So is QuillBot safe for your writing?

QuillBot is a genuine tool that takes a broad license to what you give it. Before you paste the next essay:

• The license: assume anything you send QuillBot stays licensed to Learneo. A deletion request through Learneo's webform reaches your personal data, while the license in its terms continues.
• The extension: under View All Settings, then Data and Privacy, turn off text storage, and turn off training too if you have an account. Set Enable Quillbot to No on your email and on any page showing other people's information.
• The website: look through your quillbot.com account settings as well, since the help center describes the switches only for the extension.
• AI Detector reports: download the report rather than turning on link sharing.
• An essay you'd rather keep to yourself: rewrite it in a Private chat on Morse, or in E2EE when nobody else should read it at all.

Try Morse from its home page before you make an account, or open a free account with no card.