QuillBot
Paraphrase text in unlimited style modes while checking it for grammar errors, plagiarism, and AI-detection risk in one pass. AI Detector and AI Humanizer are now bundled into every premium plan.
The verdict on QuillBot: Rephrasing existing text into a cleaner or more formal version without rewriting from scratch The most common mistake with QuillBot is treating it like a smaller ChatGPT. Pricing: Free / $19.95/mo Premium (or $8.33/mo billed annually).
Best For
Rephrasing existing text into a cleaner or more formal version without rewriting from scratch
Standout Feature
Nine predefined rewriting modes plus unlimited custom styles
TL;DR
The go-to for students and non-native English writers polishing a draft, not for generating new content.
Alternatives
Fit Score: use-case reference
How this is scoredQuillBot scored 1 to 5 on five dimensions for the named use cases below. Part of our catalog-wide use-case reference, not a product-quality review rating.
Rephrasing existing text into a cleaner or more formal version
4.2/5- Capability
- 5/5
- Reliability
- 4/5
- Value
- 4/5
- Ease
- 5/5
- Compatibility
- 3/5
Directly the tool's own bestFor and top pro (best paraphrasing tool available), with eight rewriting modes as the named standout. Compatibility is capped by the tool's own facts record, which lists apiAvailability as not-published, unlike more open competitors in this pilot batch.
Checking a draft for plagiarism and AI-detection risk before submitting it
3.4/5- Capability
- 3/5
- Reliability
- 3/5
- Value
- 4/5
- Ease
- 4/5
- Compatibility
- 3/5
The shortDescription confirms an AI Detector, AI Humanizer, and plagiarism checker are bundled into every premium plan, but a named con is specific that the plagiarism checker itself is weaker than Grammarly's, which caps Capability and Reliability for this particular job even though the core paraphrasing use case scores well above it.
Editorial judgment grounded in this tool's own published pricing, features, and our existing pros and cons, not a certification or a measured benchmark. Product quality is assessed separately under our review methodology.
Overview
Not yet reviewedProduct quality is assessed from original evidence. How reviews work.
QuillBot is a widely used AI paraphrasing and summarization tool, with over 35 million users, a scale that reflects its utility for a broad range of writing tasks where the goal is to rephrase existing text rather than create from scratch. Its paraphraser offers eight rewriting modes: Standard, Fluency, Formal, Academic, Simple, Creative, Shorten, and Expand. The Fluency mode is the commonly used for general editing; Academic mode is calibrated specifically for the tone and vocabulary of academic writing; Shorten and Expand provide concise controls for hitting word count targets. QuillBot's Summarizer distills long articles, papers, or documents into key points with adjustable output length.
The Grammar Checker functions similarly to Grammarly for error detection and correction. The Translator supports 45+ languages. The Citation Generator automatically formats citations in APA, MLA, and Chicago from URLs, DOIs, and ISBNs. Premium plans start at $8.33/month (billed annually).
QuillBot is extensively used by students, non-native English speakers, and academic writers who need help restructuring prose or hitting stylistic targets without changing the underlying meaning of the text.
The source of the legacy catalog rating and review count has not been substantiated. Neither is presented here as a verified review rating or included in review structured data.
Workflow Fit Scores are separate, use-case-specific editorial judgments, not user-review averages. Read the Fit Score methodology.
- • Best paraphrasing tool available
- • Extremely popular and trusted
- • Good free tier
- • Works across all writing tasks
- • Output can sometimes lose nuance
- • Plagiarism checker is weaker than Grammarly's
- • Paraphrasing ≠ writing from scratch
Key Features
- Paraphraser (9 predefined modes + unlimited custom modes, 2 free)
- Summarizer
- Grammar checker
- Plagiarism checker
- Citation generator
Trust & Data
Verified 2026-08
- Training on your data
- Opt-out availableUser inputs train QuillBot's own AI models by default, with an opt-out in the extension's Data and Privacy settings; Team Plan users are excluded from training entirely.
- Compliance
- GDPR, CCPA, PCI DSS
- Retention
- Personal data is retained as long as necessary to provide services and for legal/commercial purposes, without a fixed published duration.
- Export
- Partial export
Sources: quillbot.com/trust center, help.quillbot.com, quillbot.com/privacy
As published by the vendor. Verify independently before purchase decisions.
Our Take
It's not a drafting tool, it's a rephrasing tool, feed it a blank page and it has nothing to do. Where it actually earns its subscription is taking a rough draft you already wrote and tightening the tone, formality, or length without you starting over. If you need something to generate the first draft, this is the wrong tool for that job.
Workflows Using This Tool
Step-by-step playbooks whose entries name QuillBot. The step shown is where the workflow uses it.