LanguageTool

Name: LanguageTool
Brand: LanguageTool
Price: 4.99 USD
Rating: 4.4 (61 reviews)

Unclaimed Editor reviewed

Catch grammar, spelling, and style errors in 30+ languages

Writing & Content AI Writing Grammar & Style

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4.4(61 across the web)

FreemiumVisit Website

Reviews onG2CapterraSourceForge

61 reviews tracked·2 press mentions

The Bottom Line

Entry price

From $4.99/mo (free plan available)

Biggest pro

Good grammar checker

Biggest con

Less advanced than Grammarly

TL;DR - LanguageTool

Open-source grammar and style checker supporting 30+ languages including 6 English dialects
AI paraphraser rewrites sentences to be simpler, shorter, or more formal
Available as browser extension, desktop app, and plugins for Word, LibreOffice, and Google Docs

Pricing: Free plan available

Best for: Growing teams

4.4/5 across review platforms

What is LanguageTool?

Editorial review

LanguageTool catches grammar, spelling, and style issues across 30+ languages. The AI-powered checker goes beyond basic errors to suggest clearer phrasing and detect tone inconsistencies. Available as a browser extension, desktop app, and API, it helps writers produce polished content whether drafting emails or long-form articles.

Available on: Web, Chrome, macOS, Windows, iOS, Android

LCLouis CorneloupUpdated May 26, 2026 · how we evaluateSourcelanguagetool.org ↗

Pros & Cons

Pros

Good grammar checker
Privacy focused
Multi-language
Browser extension
Self-hostable

Cons

Less advanced than Grammarly
Premium expensive
Integration limited
AI features basic
Style suggestions limited

Ratings Across the Web

4.4(61 reviews)

Ratings aggregated from independent review platforms. Learn more

Key Features

Grammar checkerStyle suggestionsSpelling correctionMulti-languageBrowser extensionAPI access

Pricing Plans

Free Trial

Free

Basic checks

20,000 chars/check
Basic grammar
Limited suggestions
Browser extension

Premium

$4.99/month

Advanced features

150,000 chars/check
Style suggestions
Word choice
Punctuation checks

Teams

$6.99/per user/month

For teams

All Premium features
Team dashboard
Usage stats
Priority support

Calculate your cost View full pricing

How LanguageTool's pricing compares

At $4.99/mo, LanguageTool is the most affordable of its 4 direct competitors.

LanguageTool

$4.99

$10

$12

$13.99

$25

Entry paid plan, monthly.

Reviews

4.4/5

Across 61 verified user reviews on G2, Capterra, SourceForge

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Best LanguageTool Alternatives

Top alternatives based on features, pricing, and user needs.

GrammarlyFreemium

Write with clarity, confidence, and correctness

4.7

SaplingFreemium

AI-powered language model toolkit for real-time communication suggestions in enterprise workspaces.

4.5

ProWritingAidFreemium

The essential toolkit for storytellers to craft, polish, and elevate their writing.

4.6

Ginger SoftwareFreemium

Grammar, spelling, and punctuation checker with translation

4.2

See all Writing & Content tools →

Still deciding?

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

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LanguageTool FAQ

What is LanguageTool?

LanguageTool is an AI-based grammar checker that helps users improve their writing across more than 30 languages and dialects. It works via browser extensions, desktop applications, and office plugins.

What features does LanguageTool offer?

LanguageTool offers grammar and spelling checks, punctuation correction, style improvements for overused phrases, an AI paraphrasing tool, casing corrections, and writing statistics to track productivity.

Where can I use LanguageTool?

LanguageTool works in Gmail, Outlook, Apple Mail, Google Docs, Microsoft Word, LibreOffice, web browsers for tweets and blogs, and supports academic and professional business writing.

What languages does LanguageTool support?

LanguageTool supports more than 30 languages and dialects, with primary coverage of English, Spanish, German, French, Dutch, and Portuguese.

Source: languagetool.org

Guides & Articles

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