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LanguageTool logo

LanguageTool

AI-powered grammar, spelling and style checker for 30+ languages, with a strong DACH and EU-privacy focus.

Free accessFree plan
Paid fromPremium MonthlyUp to 150,000 characters

At a Glance

LanguageTool is an AI tool for Editing & paraphrasing (category: Content & SEO). Free access: Free plan. Documented: 6 plans with prices and limits.

Category
Editing & paraphrasing
Paid from
Not verified for this market / Month (Premium Monthly)
Free Option
Free plan
Plans
6
Sources
5 verified sources
Website
languagetool.org (opens in a new tab)

Category: Content & SEO · Editing & paraphrasing

Features

LanguageTool is a grammar and spell checker available as a browser add-on, desktop app, and API. The free plan checks up to 2,000 characters per text field; Premium raises this limit to 150,000 characters and unlocks unlimited AI rewriting.

The browser extension does not run purely locally: its default configuration sends text to a server for checking. Review the settings and privacy information before entering confidential content. Teams can define shared writing rules through a style guide.

Prices and plans

TierPricePeriodWhat you get
Freefree-Grammar/spelling check up to 2,000 characters
3 AI rewrites per day
Premium MonthlyNot verified for this marketMonthUp to 150,000 characters
Unlimited AI paraphrasing
Premium YearlyNot verified for this marketyearSame as Premium Monthly
Teams (2 seats)Not verified for this marketAnnual total for 2 seats in the configurator; larger teams have different prices, VAT includedyearAll Premium benefits
Team style guide
Premium (quarterly)Not verified for this marketquarterUp to 150,000 characters
Unlimited AI paraphrasing
Premium (2 years)Not verified for this market2 yearsUp to 150,000 characters
Unlimited AI paraphrasing

Prices per vendor, excl. taxes/VAT where applicable.

Limits

Free LanguageTool checks up to 2,000 characters per text field and allows 3 AI rewrites daily. Premium raises the text-field limit to 150,000 characters and offers rewrites without a quantity limit. Monthly, quarterly, annual, and two-year billing are available. Team prices depend on the selected seat count; a team annual total is not a monthly per-user price.

Alternatives and similar tools to LanguageTool

A selection for “Editing & paraphrasing” and curated direct comparisons. Direct comparisons carry the most weight, followed by the shared subcategory and shared tasks. Matching free-access types carry less weight. Ties are resolved consistently. No quality rating.

GrammarlyCorrect, rewrite, and develop English text with generative writing assistance.ProWordtuneRewrite, correct, improve fluency, and summarise English text.AdvancedPaperpalWrite, edit, source, and run pre-submission checks on academic manuscripts.PrimeHyperWriteAI writing assistant from OthersideAI with a Chrome extension, custom personas and over 200 AI writing tools such as AutoWrite and TypeAhead.PremiumImmersive TranslateCore capabilities include: Read web pages in a bilingual layout; Translate PDF content for further work; Read video subtitles in other languages.Pro · year, billed annuallyDeepLTranslation service for text and documents with glossaries, plus the DeepL Write writing assistant, DeepL Voice real-time speech translation and a translation API.IndividualQuillBotParaphrase, summarise, and check text for plagiarism.PremiumLynoteAn AI workspace for revising writing and preparing study material.not published

LanguageTool alternatives comparison →

More tools for the same task, alphabetical and sourced. Not a quality ranking.

Copy and SEO

Two tools at a glance: prices, limits and sources from the catalog. Side by side, not a ranking.

Grammarly vs LanguageTool

FAQ

Is LanguageTool available for free?

Yes. A permanently free plan is published, not a time-limited trial.

Where is the vendor of LanguageTool based?

LanguageTooler GmbH (Potsdam/Berlin), seit 2023 Teil von Learneo, Inc. (USA) is based in Germany. Regardless of that location, data processing and privacy terms are governed by the vendor's own contract.

How is LanguageTool billed?

Premium costs EUR 19.90 monthly or EUR 59.89 annually, with up to 150,000 characters per text field. Quarterly, two-year, and team options are listed separately.

What plans does LanguageTool offer?

The catalog documents 6 plans with price, billing period, and included features.

Is LanguageTool currently available?

LanguageTool is still active: Active.

How we compare

We compare free access, paid entry, plan limits, features and the listed official sources. Unsourced figures stay marked as not published.

Only confirmed entries appear in the catalog. Prices, plans and limits come from listed official vendor pages. Missing figures stay marked as not published. Search results are ordered by Task match by default; category and task lists are alphabetical. Both can be switched to Free access first; neither is a quality ranking. The vendor page always wins.

Edited and checked by the AI Compare Ninja team

Sources

All details regarding plans, limits, and features are based on official vendor documentation and the primary sources verified below.

Visit site (opens in a new tab)

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