LanguageTool vs Wordtune
Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.
AI tool · Freemium
A multilingual grammar, style and spell checker with an open-source core.
AI tool · Freemium
AI21's rewriting assistant that suggests alternative phrasings, tones and lengths as you write.
The short answer
Choose LanguageTool if you need…
- Writing in multiple languages
- Privacy-conscious grammar checking
Choose Wordtune if you need…
- Polishing sentences
- Adjusting tone
Side-by-side
| LanguageTool | Wordtune | |
|---|---|---|
| Type | Writing · Editing & grammar | Writing · Editing & grammar |
| Price | Freemium | Freemium |
| Platforms | Web, Chrome, macOS, Windows | Web, Chrome |
| Works with | Chrome, Microsoft 365, Google Workspace | Chrome, Google Workspace |
| Hands-on tested by us | Not yet | Not yet |
| Last checked | 2026-10-29 | 2026-10-29 |
What each one is
LanguageTool
A multilingual grammar, style and spell checker with an open-source core. Best for non-English writing. Advanced style suggestions require premium.
Wordtune
AI21's rewriting assistant that suggests alternative phrasings, tones and lengths as you write. Good for sentence-level polish. Free daily limits are tight.
Best for
LanguageTool
- Writing in multiple languages
- Privacy-conscious grammar checking
Wordtune
- Polishing sentences
- Adjusting tone
Strengths
LanguageTool
- 30+ languages
- Style suggestions
- Browser and Office add-ins
- Self-hostable core
Wordtune
- Rewrite suggestions
- Shorten and expand
- Tone changes
- Browser extension
Frequently asked questions
What is the difference between LanguageTool and Wordtune?
LanguageTool: A multilingual grammar, style and spell checker with an open-source core. Wordtune: AI21's rewriting assistant that suggests alternative phrasings, tones and lengths as you write. LanguageTool suits writing in multiple languages, while Wordtune suits polishing sentences.
Are LanguageTool and Wordtune free?
LanguageTool: Freemium. Wordtune: Freemium.
What are other alternatives to LanguageTool and Wordtune?
Other options people compare them with include Grammarly, ProWritingAid, QuillBot, Hemingway Editor, DeepL.
Keep comparing
Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.