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QuillBot AI Writing and G Chrome Extension

Adds QuillBot's grammar, paraphrasing and humanizing tools straight into any text field you're typing in.

Checked 3 Oct 2026 Reviewed by Alex Listed since September 2024

Screenshot of QuillBot AI Writing and G Chrome Extension

At a glance

Starts at Free Listed as free on the Chrome Web Store.
Free tier Yes
Platforms Chrome
Best for Anyone writing across many sites, emails and forms
Not for Anyone who prefers one dedicated writing app instead

4.7 out of 5

Scored by Alex after real use

Our verdict

Rather than pasting text into a separate site, this extension puts QuillBot's grammar checker, paraphraser, humanizer and AI detector into whatever field you're typing in, from emails to social posts. Highlight text or open the toolbar and suggestions appear without switching tabs. Because it works everywhere at once, it's a broader but shallower tool than opening QuillBot's dedicated site for one task.

✓What it does well

Works in any fieldAdds suggestions directly inside text boxes across the web, not just one site.
AI Cursor accessPuts QuillBot's tools a highlight or toolbar click away while typing.
Privacy-conscious processingProcesses only what's needed for suggestions and does not sell user data.

✕Where it falls short

Chrome onlyShips only as a Chrome extension rather than a standalone app.
Basic tasks emphasizedGeared toward quick fixes like grammar and rewording, not long-form editing.
Premium features likely gatedDeeper modes such as full humanizing are likely limited without a paid plan.

Key features

Grammar checkerFlags grammar, spelling and punctuation issues in real time.
AI humanizerRephrases text so it reads as less obviously AI-written.
AI detectorChecks text for the common signs of AI generation.
Sentence rewriterReshapes awkward sentences into clearer, smoother phrasing.

Questions about QuillBot AI Writing and G Chrome Extension

What does QuillBot AI Writing and G Chrome Extension do?

The extension puts QuillBot's grammar checker, paraphraser, humanizer and AI detector into whatever text field is being typed in, from emails to social posts. Highlighting text or opening the toolbar brings up suggestions without switching tabs.

Is QuillBot AI Writing and G Chrome Extension free?

The extension is listed as free on the Chrome Web Store, and its pricing shows a Free option at $0. The reviewer notes that deeper modes, such as full humanizing, are likely limited without a paid plan.

Does QuillBot AI Writing and G Chrome Extension protect user data?

The extension works directly inside text boxes across the web, and it processes only what is needed for suggestions and does not sell user data. The reviewer lists this privacy-conscious processing among its strengths.

What are the downsides of QuillBot AI Writing and G Chrome Extension?

The extension ships only for Chrome rather than as a standalone app, and it is geared toward quick fixes like grammar and rewording, not long-form editing. The reviewer calls it broader but shallower than opening QuillBot's dedicated site for one task.

How does Toolio score QuillBot AI Writing and G Chrome Extension?

Alex scored it 4.7 out of 5 after real use on 3 Oct 2026. Toolio says it is best for anyone writing across many sites, emails and forms, and not for anyone who prefers one dedicated writing app instead.

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