Choosing between LanguageTool and Grammarly comes down to what kind of writing help you need, how many languages you work in, and how much you want to spend for premium assistance.
For buyers comparing LanguageTool vs Grammarly, three facts stand out immediately: LanguageTool supports more than 30 languages, LanguageTool Premium starts at $4.92, and Grammarly Pro is priced at $12 per month. LanguageTool also includes 3 sentence rephrasings per day on its free plan, while Premium unlocks unlimited AI-powered paraphrasing and up to 150,000 characters per text field.
LanguageTool is an AI-powered writing assistant for grammar, spelling, punctuation, and style checks. It works across more than 30 languages and is designed to help users improve writing in emails, documents, and social posts with real-time corrections and suggestions.
LanguageTool is available across multiple platforms, including browser add-ons for Chrome, Edge, Firefox, Safari, and Opera, plus integrations for Gmail, Outlook, Apple Mail, Thunderbird, Google Docs, Word, Apple Pages, and LibreOffice. It also offers desktop apps for macOS and Windows, a proofreading API, and business-focused options with GDPR-conform solutions.
Grammarly positions itself as a broad writing and AI productivity platform. Its product lineup includes an AI assistant, AI agents, Docs, Desktop, Mobile, Browser, and a Languages section.
Its toolset extends beyond grammar checking into AI writing tools, plagiarism checking, AI detection, AI humanizer, paraphrasing, AI chat, citation generation, word counting, and role-specific offerings for teams, businesses, enterprise, students, and institutions.
LanguageTool and Grammarly both cover core writing assistance, but they differ in emphasis. LanguageTool leans strongly into multilingual grammar and style correction with broad app coverage, while Grammarly presents a wider AI tool portfolio around writing workflows.
| Feature | LanguageTool | Grammarly |
|---|---|---|
| Core writing assistance | AI-powered grammar, spelling, punctuation, and style checking | Grammar Checker plus AI Writing Tools |
| Languages | Supports over 30 languages | Offers a Languages product area |
| Paraphrasing | Free plan includes 3 sentence rephrasings per day Premium includes unlimited AI-powered paraphrasing |
Offers a Paraphrasing Tool |
| Writing refinement | Real-time corrections and suggestions Picky Mode adds more style and tonality suggestions, detects long or complex sentences, recognizes colloquialism and redundancies, and suggests synonyms for overused words |
AI assistant and AI agents |
| Platform coverage | Browser add-ons for Chrome, Edge, Firefox, Safari, Opera Email add-ons for Gmail, Outlook, Apple Mail, Thunderbird Office plugins for Google Docs, Word, Apple Pages, LibreOffice Apps for macOS and Windows |
Docs, Desktop, Mobile, Browser |
| Team and business support | Teams plan includes team style guide and dictionary plus user management for small teams up to 20 members | Teams & businesses and Enterprise plans |
LanguageTool is the stronger fit for multilingual writing teams and users who want an editing-first product. Its support for over 30 languages is a meaningful advantage for international businesses, multilingual professionals, and anyone editing beyond English.
Its ecosystem is also broad in practical terms. Browser extensions, office plugins, email add-ons, native desktop apps, and a Microsoft Word add-in in Premium make it easy to use in day-to-day writing without changing tools.
Grammarly is positioned as a wider AI writing platform. In addition to grammar checking, it offers plagiarism checking, AI detector, AI humanizer, AI chat, citation generator, and multiple AI agents such as Resume Builder, Citation Finder, AI Grader, and Reader Reactions.
That makes Grammarly appealing for buyers who want a larger bundle of AI writing and productivity tools in one vendor.
Price is one of the clearest differences in this comparison. LanguageTool’s paid entry point is substantially lower, while Grammarly keeps a simpler public structure with Free, Pro, and Enterprise.
| Feature | LanguageTool | Grammarly |
|---|---|---|
| Free plan | $0 | $0/month |
| Entry paid plan | Premium from $4.92 | Pro at $12/month |
| Team plan | Teams with contact pricing | Enterprise with contact sales |
| Free-plan writing extras | Basic grammar and spell checking Limited style checks 3 sentence rephrasings per day |
Free plan available |
| Paid-plan writing extras | Enhanced grammar, punctuation, and style checking More than 20,000 additional checks Unlimited sentence paraphrasing powered by AI |
Pro plan available with 7-day free trial |
| Text capacity | Up to 150,000 characters per text field on Premium | Pro pricing listed at $12/month |
LanguageTool gives budget-conscious buyers more detail and more immediate value at the lower paid tier. At $4.92, Premium includes enhanced checks, more than 20,000 additional checks, unlimited paraphrasing, a style guide, a personal dictionary, and Word add-in support.
Grammarly Pro is priced at $12 per month and includes a 7-day free trial with an email reminder two days before the trial ends. For buyers focused on cost efficiency in a Grammarly alternative, LanguageTool has the more aggressive entry price.
LanguageTool is built around fast, practical editing. The editor supports checking text quickly, and the account experience adds saved texts, a distraction-free writing environment, personal dictionary support, and statistics.
The product also feels deployment-friendly. Users can work inside browsers, email tools, office software, and desktop apps rather than relying on a single writing surface. For organizations, LanguageTool adds business-focused controls like team style guides, shared dictionaries, and user management.
Grammarly spans Docs, Desktop, Mobile, and Browser, which supports cross-device writing workflows. It also has a broader AI workspace orientation through AI assistant, AI chat, and agent-style tools.
For users who want one vendor for grammar help plus adjacent AI tasks like citations or plagiarism checking, Grammarly offers a more expansive tool catalog.
Yes, especially for buyers who prioritize multilingual support, lower starting cost, and deep writing-tool integrations.
LanguageTool covers the core jobs most people come for first: grammar, spelling, punctuation, style, and paraphrasing. It also adds over 30 language options, Premium pricing from $4.92, and a team plan with style-guide and dictionary management. If your decision is mainly about better value for writing correction rather than the broadest possible AI toolkit, LanguageTool is a strong Grammarly alternative.
Choose LanguageTool if you want the strongest mix of multilingual coverage, affordable premium pricing, and broad integrations across browsers, office tools, and email clients. It is especially well suited to professionals, international teams, and frequent writers who want direct editing help where they already work.
Choose Grammarly if you want a wider AI platform that stretches into plagiarism checking, AI chat, citation tools, and specialized AI agents. It is a better fit for buyers who value breadth of AI writing utilities alongside core grammar support.
LanguageTool vs Grammarly is ultimately a choice between focused multilingual writing assistance and a broader AI writing platform. Grammarly offers a larger surrounding suite of AI tools, but LanguageTool delivers a compelling buyer story with support for over 30 languages, Premium from $4.92, unlimited AI paraphrasing on paid plans, and extensive integrations across browsers, office apps, and email.
If you want a practical, lower-cost Grammarly alternative built for real editing workflows, try LanguageTool at languagetool.org.
Yes. LanguageTool Premium starts at $4.92, while Grammarly Pro is priced at $12 per month. That gives LanguageTool a significantly lower paid entry point for buyers comparing premium writing assistance.
LanguageTool supports over 30 languages. That makes it a strong choice for multilingual writing, editing, and international team communication.
Both products serve teams and businesses. LanguageTool offers a Teams plan with shared style guides, shared dictionaries, and user management for small teams up to 20 members, while Grammarly offers Teams & businesses and Enterprise options.
Yes. LanguageTool’s free plan includes 3 sentence rephrasings per day, and Premium includes unlimited sentence paraphrasing powered by AI. Grammarly also offers a Paraphrasing Tool.
Yes. LanguageTool is a strong Grammarly alternative for everyday writing because it combines grammar, spelling, punctuation, style checks, and paraphrasing with broad app integrations and lower starting premium pricing. It is particularly attractive if you write across multiple tools and languages.
Compare LanguageTool vs Grammarly on features, pricing, and fit. LanguageTool stands out with 30-plus languages and lower entry pricing for writing support.