Grammarly
Best for editing and content integrityGrammarly has expanded far beyond grammar checking into a comprehensive writing assistant with critical features for academic and professional integrity. The plagiarism detector scans against 16 billion web pages plus academic databases to identify unoriginal content and potential copyright issues before publication. Auto-citations pull references from 20+ research databases, formatting them in MLA, APA, Chicago, and other academic styles automatically. AI content detection identifies text likely generated by AI models, with Authorship tracking showing exactly which portions were typed versus AI-suggested—essential for academic honesty and editorial transparency. The Humanize feature rewrites AI-generated content to sound more natural and less detectably artificial. GrammarlyGO serves as a generative assistant for drafting, brainstorming topic ideas, rephrasing awkward sentences, and adjusting tone from formal to conversational. The system provides context-aware corrections, understanding intent to suggest improvements beyond mechanical grammar rules. For students, academics, journalists, and professionals where writing quality and integrity matter, Grammarly provides essential safeguards alongside writing enhancement. The free tier offers solid grammar checking, while Premium unlocks advanced features including plagiarism detection, tone adjustment, and GrammarlyGO.
AI Models
Key Features
- Grammar and plagiarism checking against 16B web pages
- Auto-citations from 20+ research databases in multiple formats
- AI content detection and Authorship tracking (AI vs typed)
- Humanize feature for naturalizing AI-generated text
- GrammarlyGO for drafting, brainstorming, rephrasing
- Context-aware corrections understanding intent
- Tone adjustment from formal to conversational
- Cross-platform: web, desktop, mobile, browser extensions
Integrations
Pricing
Grammar and spelling checks, basic tone detection
Plagiarism, GrammarlyGO, advanced suggestions, tone rewriting
Team style guide, brand tone, analytics, admin controls
Pros & Cons
Pros
- Plagiarism detection essential for academic integrity
- AI detection and authorship tracking unique in market
- Cross-platform availability fits any workflow
Cons
- Premium required for most valuable features
- Some suggestions can be overly prescriptive