QuillBot
by QuillBot (Learneo)
At a glance
AI writing assistant known for paraphrasing, grammar checking, and summarizing text.
ai-writing paraphrasing grammar
- Licence
- Not recorded
- Category
- Productivity
- Business model
- Freemium
- Availability
- Global
- Launched
- 2017
Overview
QuillBot is an AI writing assistant best known for paraphrasing, with tools for grammar checking, summarizing, translation, and plagiarism and AI-content detection. It integrates with browsers, Word, and mobile keyboards, serving students and professionals. QuillBot is freemium: basic paraphrasing is free, while Premium unlocks all modes and unlimited length.
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Key features
- Paraphraser with multiple rewriting modes
- Grammar checker and summarizer
- Plagiarism checker and AI detector
- Browser, Word, and mobile integrations
Use cases
- Rewriting sentences for clarity and tone
- Summarizing articles and papers
- Checking essays for grammar and originality
Pricing
QuillBot's core paraphraser and grammar tools are free with limits; Premium subscriptions add advanced modes, longer inputs, and the plagiarism checker.
Record details
Provenance, dates and links are kept here so the main sections stay about the product itself.
Links, dates and provenance
- Record updated
- 2026-07-30
- Founded
- 2017
- Headquarters
- US
- Canonical URL
- https://globalaiproductindex.com/products/quillbot/
Selection profile
Every field says where its value comes from. "Unknown" means we have not confirmed it — it does not mean the product lacks the feature.
Selection profile11 fields4 unknown
- Tasks it fits
- Everyday productivity
Derived from the record: category "productivity".
Suggest a correction - How you use it
- Web app
Hosted product with no desktop/CLI tag in the record; assumed web-delivered.
Suggest a correction - Runs on
- Web
Derived from platform words in the record description/features/tags.
Suggest a correction - Where it runs
- Vendor cloud
Vendor-hosted product; no self-hosted option is recorded.
Suggest a correction - Works offline
- Not recorded
The record contains no offline-operation claim.
Suggest a correction - Official service region
- Global
Mirrors the availability field already on the record ("global").
Suggest a correction - Public API
- Not recorded
The record does not state whether a public API exists.
Suggest a correction - Licence
- proprietary
Commercial product; no source licence is published in the record.
Suggest a correction - Commercial use
- Not recorded
Commercial product; the terms reviewed here do not state a non-commercial restriction, but that was not verified.
Suggest a correction - Interface languages
- Not recorded
No vendor page read in this pass states the product's own interface languages; the key exists so the field can be answered later rather than left absent.
Suggest a correction - Billing
- Subscription Free allowance: Limited Subscription required: No
Prices are the vendor’s advertised entry price and exclude taxes; always confirm on the vendor’s own page.
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Where each value comes from
- Tasks it fits
- Our inference
- How you use it
- Our inference
- Runs on
- Our inference
- Where it runs
- Our inference
- Works offline
- Our inference
- Official service region
- Our inference
- Public API
- Our inference
- Licence
- Our inference
- Commercial use
- Our inference
- Interface languages
- Unknown
Frequently asked questions
What is QuillBot known for?
QuillBot is best known as an AI paraphrasing tool, alongside grammar checking and summarizing features.
Is QuillBot free?
Yes, with limited modes and length; Premium removes those limits and adds plagiarism checking.
Who owns QuillBot?
QuillBot is part of Learneo, the company behind Course Hero.
What does QuillBot not record?
No documentation or pricing URL is recorded for QuillBot, because the vendor site returned an HTTP 403 to automated fetch and those pages could not be read.
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- Wordtune — AI writing companion from AI21 Labs that rewrites, rephrases, and adjusts the tone of sentences.
- Writer — Enterprise generative AI platform with its own Palmyra models for writing, agents, and company workflows.
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Related guides
Sources
This record was last reviewed on 2026-07-30.
Machine-readable record: /api/products/quillbot.json · Spot an error? Suggest a correction