Grammarly vs LanguageTool
LanguageTool uniquely has 1 feature.
| Grammarly | LanguageTool | |
|---|---|---|
| Company | ||
| Founded | 2009 | 2003 |
| HQ | San Francisco, USA | Potsdam, Germany |
| AI model | Proprietary | Proprietary |
| User base | 40 million+ | 3M+ Chrome users |
| Platforms | Web, Windows, Mac, iOS, Android, Chrome, Safari, Firefox, Edge, MS Office, Google Docs | Web, Chrome, Firefox, Edge, Safari, Opera, macOS, Windows, Google Docs, Microsoft Word, Apple Pages, LibreOffice, Gmail, Outlook, Apple Mail, Thunderbird |
| Languages | English primary, with fluency support for non-native English speakers | 30+ languages and dialects |
| Pricing | ||
| Free plan | Yes | Yes |
| Free trial | Yes — 7-day free trial for Pro | — |
| Starting price | $12/mo (Pro plan, billed annually) | $4.99/mo (Premium, 2-year plan) |
| Enterprise | Custom | Custom — contact for Business/API |
| All plans | Free$0/moPro$30/moEnterpriseContact Sales | Premium$12.45/mo or $24.95/quarterlyTeams$5.53/mo |
| Positioning | ||
| Best for | Individuals, teams, and enterprises seeking AI-powered writing assistance, grammar checking, and tone improvement | Multilingual writers, non-native English speakers, professionals needing grammar and style checking across 30+ languages |
| Differentiator | The most widely adopted AI writing assistant, trusted by 40 million users and 50,000 organizations, offering real-time grammar, tone, plagiarism, and AI detection with enterprise-grade security and style guide enforcement. | Privacy-focused, GDPR-compliant AI grammar and style checker supporting 30+ languages with browser and office integrations, at a lower price point than Grammarly |
| Competitors | Hemingway Editor, ProWritingAid, QuillBot, Jasper, Copy.ai, Writer | Grammarly, ProWritingAid, Hemingway Editor, Wordtune, Ginger |
| Features | ||
| AI Copywriting | ✓ | ✓ |
| AI Research | ✕ | ✕ |
| Brand Voice | Deep — brand tones (1 on Free, unlimited on Enterprise), style guide, knowledge share, snippets | Basic — Style Guide and Team Style Guide available in Premium/Teams |
| Bulk Generation | ✕ | ✕ |
| Content Editor | ✓ | ✓ |
| Grammar Style | ✓ | ✓ |
| Image Generation | ✕ | ✕ |
| Long Form Writing | ✓ | ✓ |
| Paraphrasing | ✓ | ✓ |
| Plagiarism Checker | Built-in — available on Pro and Enterprise plans | No |
| SEO Optimization | ✕ | ✕ |
| Short Form Writing | ✓ | ✓ |
| Templates | ✕ | ✕ |
| Integrations | ||
| API Access | — | ✓ |
| Chrome Extension | ✓ | ✓ |
| CMS | — | ✕ |
| Google Docs | ✓ | ✓ |
| Key Integrations | Google Docs, Microsoft Office (Word), Chrome, Safari, Firefox, Edge, Windows desktop app, Mac desktop app, iPhone, iPad, Android, Zendesk (shown in marketing) | Chrome, Firefox, Edge, Safari, Opera, Google Docs, Microsoft Word, Apple Pages, LibreOffice, Gmail, Outlook, Apple Mail, Thunderbird, macOS app, Windows app |
| Wordpress | ✕ | ✕ |