Wordtune
WritingFreemium
AI rewriting assistant that rephrases sentences in context.
4.62,400 reviews1M+
View Extension
LanguageTool
Open-source grammar checker supporting 30+ languages.
4.712,600 reviews~2M+ usersWritingBy LanguageTool
Freemium
Reviewed by the Single Tab Browser editorial teamLast tested 2026-06-20LanguageTool screenshots
Overview
LanguageTool proofreads text in more than thirty languages with an option to self-host the checking server, which appeals to teams with strict data rules. The browser extension underlines issues inline and explains each suggestion.
LanguageTool is a writing Chrome extension from LanguageTool with roughly 2M users on the Chrome Web Store. It holds a 4.7-star average across 13K ratings, which puts it among the better-reviewed options in its category. Pricing is freemium, listed at From $4.99/mo.
LanguageTool proofreads text in more than thirty languages with an option to self-host the checking server, which appeals to teams with strict data rules. The browser extension underlines issues inline and explains each suggestion.
The trade-off is the usual one for a freemium extension: the free tier gets you the core feature and the paid tier unlocks the parts most people eventually want. With 2M users, complaints and fixes surface quickly, so check the review notes below before installing it alongside other writing extensions.
How to install and set up LanguageTool
- 1Open the Chrome Web Store listing for LanguageTool and click Add to Chrome, then Add extension.
- 2Pin the icon: click the puzzle-piece button in Chrome's toolbar, find it in the list and click the pin so it stays visible.
- 3Open the extension once and walk through its first-run screen — a writing extension usually asks which sites it may act on.
- 4Test it on a page you know well before relying on it for daily work.
- 5To remove it later, right-click the toolbar icon and choose Remove from Chrome, or use chrome://extensions.
Key features
LanguageTool proofreads text in more than thirty languages w
LanguageTool proofreads text in more than thirty languages with an option to self-host the checking server, which appeals to teams with strict…
The browser extension underlines issues inline and explains
The browser extension underlines issues inline and explains each suggestion.
Who should use LanguageTool?
Multilingual writers and privacy-conscious teams who want a self-hostable alternative to Grammarly.
Pricing
LanguageTool is freemium — From $4.99/mo. The free tier is usable for evaluation; compare paid tiers before committing a team.
LanguageTool alternatives
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Grammarly
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View ExtensionFrequently asked questions
Is LanguageTool free?
It is a freemium extension with a listed price of From $4.99/mo. The free tier covers the core feature; paid tiers unlock the rest.
How many people use LanguageTool?
Roughly 2M Chrome users have it installed, and it holds a 4.7-star average from 13K ratings.
Is LanguageTool safe to install?
LanguageTool is published on the official Chrome Web Store by LanguageTool, so it passes Google's review. Check the permissions it asks for on install and prefer the store listing over third-party mirrors.
What are the best LanguageTool alternatives?
The alternatives page lists the closest writing extensions ranked by installs and rating, with a head-to-head comparison for the top pick.
Related extensions to LanguageTool
Picked from the Writing category and the tags grammar, multilingual, proofreading — jump straight to the alternatives and head-to-head pages people open next.
Wordtune alternativesAI rewriting assistant that rephrases sentences in context.Grammarly alternativesGrammar, spelling and tone suggestions everywhere you write.YouTube Anti Translate alternativesA small extension to disable YouTube video titles/audio/descriptions autotranslation.TransOver alternativesHover, click or select to translate (with text-to-speech). Translator.Grammarly vs LanguageToolIs LanguageTool as good as Grammarly?LanguageTool vs WordtuneLanguageTool or Wordtune: which should I install?Grammarly vs WordtuneGrammarly or Wordtune for rewriting?All Writing extensionsEvery writing extension in the directory, ranked.
Compare LanguageTool with the obvious rivals
Side-by-side feature tables, pricing and a clear recommendation.
Grammarly vs LanguageToolThe market leader against the open-source challenger with self-hosting and stronger multilingual support.LanguageTool vs WordtuneBoth are writing extensions people shortlist together — see how ratings, install base, pricing and day-to-day use differ.Grammarly vs LanguageToolHead-to-head breakdown with real install and rating data.Google Translate vs LanguageToolHead-to-head breakdown with real install and rating data.Wordtune vs LanguageToolHead-to-head breakdown with real install and rating data.LanguageTool alternativesRanked replacements if LanguageTool is not the right fit.All comparisonsThe full compare hub, grouped by category.