LanguageTool

Open-source grammar checking in 30+ languages. LanguageTool competes in the AI Writing category, where our editors have reviewed 986 tools so far. It has been bookmarked by 8,700 readers, making it one of the most trusted options in its class. This in-depth review breaks down exactly where LanguageTool shines, where it falls short, and who should choose it.

In real-world use, LanguageTool's clearest strengths are Open-source core; 30+ languages; Self-hosting option; Cheap premium. These advantages matter most for grammar checks, style fixes, multilingual proofreading, team writing, emails — the exact workload LanguageTool was designed around. Readers who prioritise these qualities consistently rank it among their favourites in AI Writing.

No tool is perfect — before you commit, weigh Style advice lighter than rivals; Premium for full features; Interface is plain; No generative drafting. LanguageTool pricing starts at Free, Premium from $4.99/mo. Always confirm the latest plans on the official website, because prices change often. Because you can evaluate the full experience free of charge, LanguageTool is a low-risk tool to try this week. LanguageTool is a solid, well-reviewed choice in AI Writing and deserves a place on your shortlist.