LanguageTool
An open-source AI proofreading tool for multilingual grammar, spelling, and style correction.
AI Tier List rates LanguageTool Tier B among 8 Grammar Correction tools, last re-evaluated Aug 2, 2026. How we rank →
ProWritingAidCView all Detailed Description
LanguageTool is an open-source AI proofreading tool that detects grammar, spelling, and style issues in multiple languages. It is useful for writers, students, and professionals who require accurate and polished writing. It offers accessibility through its website, browser extensions, and various software integrations.
Is LanguageTool still worth it in 2026?
LanguageTool provides practical value as a reliable, open-source-based grammar correction tool with robust multilingual support. While it lacks the creative contextual understanding of newer LLM-based writing assistants, it remains highly competitive in precise grammar correction and seamless platform integration.
Pros & Cons
- Open-source
- multilingual support
- comprehensive error detection
- various platform integrations
- cost-effective pricing
- Lack of advanced contextual understanding
- limited features in free version
- accuracy variations in some languages
- stricter character limits on free plan
Recent Changes
Enhanced AI-based grammar and style correction features, expanded support for over 30 languages, adjustment of free plan character limit to 10K, updates to desktop and browser extensions
LanguageTool FAQ
Is LanguageTool free?
Partly. LanguageTool has a free plan, with paid upgrades once you hit its limits or need advanced features. Check the official pricing page for the current limits.
Is LanguageTool still worth using in 2026?
With caveats. LanguageTool is B-Tier for Grammar Correction: solid on the basics, but higher-tier tools often do the job better. LanguageTool provides practical value as a reliable, open-source-based grammar correction tool with robust multilingual support. While it lacks the creative contextual understanding of newer LLM-based writing assistants, it remains highly competitive in precise grammar correction and seamless platform integration. Last re-evaluated Aug 2, 2026. Also compare DeepL Write (A-Tier) in the same category.
What tier is LanguageTool rated?
AI Tier List rates LanguageTool as Tier B for Grammar Correction. LanguageTool provides practical value as a reliable, open-source-based grammar correction tool with robust multilingual support. While it lacks the creative contextual understanding of newer LLM-based writing assistants, it remains highly competitive in precise grammar correction and seamless platform integration.
What is LanguageTool best for?
An open-source AI proofreading tool for multilingual grammar, spelling, and style correction. Best for: grammar, proofreading, multilingual, open-source, writing-assistant.
What are the best LanguageTool alternatives?
Top Grammar Correction alternatives to LanguageTool include DeepL Write, Reverso, Ginger Software, Linguix. Compare their tiers on AI Tier List.
LanguageTool vs DeepL Write: which should I use?
LanguageTool is Tier B — LanguageTool provides practical value as a reliable, open-source-based grammar correction tool with robust multilingual support. While it lacks the creative contextual understanding of newer LLM-based writing assistants, it remains highly competitive in precise grammar correction and seamless platform integration. DeepL Write is Tier A — DeepL Write has proven top-tier quality in the writing assistance market, moving beyond simple grammar correction to refine context and tone with precision. With high reliability in corporate and academic environments and continuous expansion of language support, it has established itself as an essential productivity tool.
LanguageTool alternatives
All LanguageTool alternativesDeepL Write
FreemiumDeepL Write is an AI writing assistant focused on improving the clarity, style, and tone of written text. It offers suggestions for better phrasing and grammatical correctness, helping users craft professional and polished writing. It is primarily useful for writers, students, business professionals, and anyone looking to enhance their writing quality.
Reverso
FreemiumReverso leverages AI technology to correct users' grammar, spelling, and punctuation errors, and suggests style improvements. It supports multiple languages beyond English, such as French and Spanish, making it useful for global users and enhancing writing quality.
Ginger Software
FreemiumGinger Software is an AI-powered grammar and spelling checker designed to improve users' writing accuracy. It also offers rephrasing and translation capabilities, helping to meet diverse language and style requirements.
Linguix
FreemiumLinguix is an AI writing assistant that corrects grammar, spelling, and punctuation errors while offering style suggestions to enhance text quality. It is useful for a wide range of users, including students, writers, and business professionals looking to improve their written communication.
ProWritingAid
PaidProWritingAid is an AI writing assistant that checks grammar, style, and readability. It helps a wide range of users, including writers, students, and business professionals, to improve the quality of their writing. The tool provides detailed reports and suggestions for systematic writing skill enhancement.
Sapling AI
FreemiumSapling AI is an AI-powered writing assistant that corrects grammar and spelling errors. It specifically offers quick response suggestions for customer-facing teams, enhancing communication efficiency.
Grammar Correction currently lists 8 tools, of which 2 are Tier B alongside LanguageTool. Other Tier B tools in the category include Reverso. For free options only, see free Grammar Correction tools.