LanguageTool Review and verdict 2026

Multilingual grammar, style, and spelling correction.

From 5€/mo.

Our take

Understanding LanguageTool.

AI-powered writing assistant that detects grammar, spelling, punctuation, and style errors in 30+ languages. Offers rephrasing suggestions, writing statistics, and works on browser, desktop, and office plugins.

Practical uses

Correct an email in English and French.
Polish a multilingual LinkedIn post.
Check grammar before sending a message.

Pros and cons

What LanguageTool does especially well — and the limits to anticipate.

Pros

Generous free version.
Support for 30+ languages.
Creative rephrasing suggestions.
Available everywhere (browser, mobile, plugins).
Easy to use, frictionless.

Cons

Less precise than Antidote for professional French.
Premium needed for full detection.
Contextual correction less sophisticated.

LanguageTool: when it makes sense.

LanguageTool works for multilinguals and occasional writers; for advanced professional French, Antidote is more appropriate.

Keep if

You write in multiple languages.. You want basic correction for free.

LanguageTool becomes worthwhile when

You use it at least once a week
The monthly cost (€5) is small next to the time it saves you

Challenge if

You need nuanced French correction only.. You prefer offline, cloud-free correction.

LanguageTool becomes too expensive when

You use it less than once a month
A simple free version or a tool already in your stack would do

Our verdict on LanguageTool.

Why this verdict

Decent

LanguageTool is fairly easy to replace with an alternative, no free tier to test before paying, clearly documented use cases.