QuillBot
🇺🇸United StateslaunchedVerifiedAI paraphrasing tool, grammar checker, and summarizer
Pricing ModelFreemium
Starting Price$9.95/month
Monthly Traffic65M visits
User Rating4.7 (34,000 reviews)
About QuillBot
QuillBot rewrites sentences, checks grammar in real time, analyzes tone, and summarizes long academic essays into key bullet points.
#Paraphraser#Grammar Checker#Summarizer#Academic#Writing
In-Depth Technical Review & Architecture Guide
2,000+ Words • Verified 2026Dive into our comprehensive engineering deep dive covering QuillBot's underlying neural architecture in United States, independent MMLU and HumanEval benchmark evaluations, full token economics breakdown, step-by-step implementation workflows, and upcoming 2026 version roadmaps.
Core Capabilities & Features
7 distinct paraphrasing modes (Standard, Fluency, Creative, Formal, Shorten, Expand)
Synonym slider for vocabulary customization
Built-in citation generator (APA, MLA, Chicago)
Browser extensions for Chrome and Word
Pros
- +Superb at reshaping clunky sentences into clear prose
- +Very helpful for non-native English speakers
Cons & Limitations
- -Word limits on free paraphraser mode (125 words at a time)
- -Can sometimes alter nuanced academic arguments
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