Grammarly vs LanguageTool: Which Grammar Checker Is Better in 2026?

# Grammarly vs LanguageTool: Which Grammar Checker Is Better in 2026?

I have used Grammarly for years. Recently I switched to LanguageTool for six months. Then I went back. Now I use both, because they are genuinely good at different things. This is the comparison I wish someone had given me before I spent money on either.

The Short Version

Grammarly is better at tone, style and the polished writing assistant experience. LanguageTool is better at multilingual grammar checking, is cheaper, and has a more generous free tier. For English-only writers who want the smoothest experience, Grammarly. For multilingual writers or anyone on a budget, LanguageTool.

Accuracy

Both catch the basic stuff: typos, comma errors, subject-verb agreement. Where they differ is the edge cases. LanguageTool has consistently caught grammar issues in my writing that Grammarly let through, especially with less common sentence structures. Grammarly, on the other hand, is better at catching tone problems and awkward phrasing that are not strictly grammar.

Free Tiers

Grammarly's free version covers spelling, punctuation and basic grammar. It is genuinely useful but limited.

LanguageTool's free tier allows checks up to 10,000 characters at a time. For long documents, that is significantly more generous. If you write long-form content and do not want to pay, LanguageTool is the better free option.

Language Support

This is where LanguageTool runs away with it. It supports over thirty languages, including Spanish, French, German, Portuguese and many more. Grammarly is effectively English-only. If you write in more than one language, the choice is obvious.

The Premium Question

Grammarly Premium is expensive, but it adds a genuinely good writing assistant: tone detection, clarity rewrites, style suggestions. For professionals who write all day, it earns its cost.

LanguageTool Premium is cheaper and adds style improvements plus more advanced grammar rules. If you need multilingual support, the value is unmatched.

My Recommendation

- English-only, want the smoothest experience: Grammarly - Multilingual writer: LanguageTool - Budget conscious: LanguageTool free tier - Professional writer who wants tone feedback: Grammarly Premium - Both: run them together. They do not conflict, and you catch more issues with both active.

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