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LanguageTool pricing

LanguageTool is an AI-based grammar, spelling and style checker with a paraphrasing tool, available as browser add-ons, office plugins and desktop apps.

AI grammar checkersFree planSelf-serve
Visit LanguageToolPrices checked Oct 29, 2026

How much does LanguageTool cost?

Paid plans start at $5.83/mo billed yearly or $11.07/mo billed monthly
Free plan
Yes

In your favor

  • No long-term contract. No notice period; cancel anytime, ends at end of current payment period.
  • Free plan. Basic plan is free: 2,000 characters per text field, limited Picky Mode, 3 AI sentence rephrasings per day, basic spelling, grammar and style checks.
  • Refunds offered. 14-day money-back guarantee on all Premium packages

How you buy and get started

Self-serveButtons on their site: Get started, Get Premium, Try for free, Sign Up
Sign up
Free account signup, then Premium checkout with PayPal or credit card
"You can complete your LanguageTool subscription with PayPal and credit card."
Setup
Not stated
When sales steps in
Not stated
Support
Help Center
"Help Center"

What LanguageTool does

LanguageTool checks grammar, spelling, punctuation and style in more than 30 languages and offers AI paraphrasing of sentences. It has a free Basic tier and paid Premium and Team plans.

Good for
Individual writers, students, professionals and teams who want grammar, style and spelling checks across browsers, Word, Google Docs and desktop apps.
Channels
Browser add-ons (Chrome, Edge, Firefox, Safari, Opera), Web editor, macOS app, Windows app, iOS app, Google Docs add-on, Microsoft Word add-in, LibreOffice, Email add-ons (Gmail, Apple Mail, Thunderbird, Outlook beta)
Main product
LanguageTool grammar, spell and style checker with AI paraphrasing
Also includes
Grammar, punctuation and spelling checks, Style suggestions, AI sentence paraphrasing, Personal Style Guide with custom rules, Personal dictionary, Text statistics
Connects to
Chrome, Edge, Firefox, Safari, Opera, Google Docs, Microsoft Word, LibreOffice, Apple Pages, Gmail, Apple Mail, Thunderbird
Public API
Yes
MCP server
Not stated
  • Grammar and spelling checksPaste your text or start typing below to check grammatical errors and spelling mistakes across languages.
  • Tone and style suggestionsChecks your text for grammar mistakes and helps you find the right tone.
  • AI rewriting and generationUnlimited sentence paraphrasing powered by A.I.
  • Custom style guide enforcementCreate custom rules to enforce consistent wording throughout your writing.
  • Browser extensionOur Browser Add-On Works Anywhere on the Web
  • Word and Google Docs add-insWorks with Windows, Mac, and even the online version. Requires Word 2016 or later or Office 365.
  • Multiple languages supportedLanguageTool grammar checker masters more than 30 languages and dialects.
  • Admin controls and SSONot stated

The same 8 checks appear on every tool in AI grammar checkers. Each tick quotes the vendor's own site.

Security and your data

QuestionTheir answerWhere it says so
Trains AI on your data?no"We do not use any of your User Content to train our artificial intelligence models."terms
HIPAA (signs a BAA)Not stated
SOC 2Not stated
GDPRGDPR-conform solutions for business"Explore our GDPR-conform solutions to ensure error-free communication and a consistent brand voice."home
CCPANot stated
PCINot stated
ISO 27001Not stated
Single sign-onNot stated
Trust centerNot stated

Security answers are the vendor's own claims, quoted. We don't audit them.

Every plan

PlanMonthlyBilled yearlyIncludedOver the allowanceWhere it says so
Teams (2 users, )/year (2 Users × $66.40/year) – $11.07per month 2 users – "$139.80 $132.80/year (2 Users × $66.40/year)"
Teams (2 users, price shown)/ month $11.07monthly or yearly not stated – 2 users – "$11.07 / month"
Premium/year $24.90 $5.83per month –150,000 characters per text field – "BESTSELLER $69.90 /year" "$24.90 /month"
Premium (2 years)/2 years – – –150,000 characters per text field – "$119.80 /2 years"
Premium (Quarterly)/quarter – – –150,000 characters per text field – "$49.90 /quarter"

Free plan: Basic plan is free: 2,000 characters per text field, limited Picky Mode, 3 AI sentence rephrasings per day, basic spelling, grammar and style checks.

Fine print

Billing increment
Not stated
Billed beyond usage
Not stated
Contract
No notice period; cancel anytime, ends at end of current payment period.
"No, you can cancel your Premium subscription at any time. The subscription will then be automatically terminated at the end of the current payment period and no further debits will"
Refunds
14-day money-back guarantee on all Premium packages
"LanguageTool offers a 14-day money-back guarantee for all Premium packages."
Auto renew
Yes, renews automatically at the selected payment interval
"Yes, the subscription is automatically renewed at the selected payment interval."
Price change notice
Not stated

"Not stated" means we read their pricing page and terms and they don't say.

About the company

Legal name
Learneo, Inc.
Address
2261 Market Street, Suite 10569, San Francisco, CA 94114, United States
Customers
"2000+ organizations trust our AI-based writing tools"
their claim

LanguageTool alternatives

Reviews elsewhere

We link to reviews instead of copying ratings: those sites don't allow reuse, and we don't test products ourselves.

Questions

Is LanguageTool free?

Yes. Basic plan is free: 2,000 characters per text field, limited Picky Mode, 3 AI sentence rephrasings per day, basic spelling, grammar and style checks. Paid plans start at $11.07/month.

How much does LanguageTool cost?

Paid plans start at $5.83 per month billed yearly, or $11.07 billed monthly.

Does LanguageTool train AI on your data?

No, according to LanguageTool: "We do not use any of your User Content to train our artificial intelligence models."