LanguageTool
by LanguageTooler GmbH
LanguageTool is a multilingual spelling, grammar, punctuation, and style checker available through a web editor, browser extensions, office integrations, desktop apps, and an API. It offers free and paid plans.
Why Abandoned
LanguageTool’s official website, editor, applications, pricing, and developer API documentation remain publicly available, indicating ongoing operation.
💵 Pricing & access
- Pricing model
- Not documented
- Starting at
- Not documented
- Official site
- Visit LanguageTool →
🩺 Health Signals
- HTTP Status
- 200
- Response
- —
- SSL
- —
- Confidence
- 99%
- Domain expires
- —
- Last content change
- —
- Last tweet
- —
- API status
- —
📅 Timeline
LanguageTool project launched
Daniel Naber began LanguageTool as an open-source style and grammar checker; the project’s official history identifies 2003 as its starting year.
LanguageTooler GmbH established
The project’s official history says LanguageTooler GmbH was founded in 2017 to support continued development and commercial services.
Insight Partners invested in LanguageTool
LanguageTool announced a growth investment from Insight Partners, describing it as the company’s first external financing after years of bootstrapped development.
LanguageTool added generative AI features
LanguageTool announced AI-powered paraphrasing, summarization, and text-generation capabilities in addition to its established spelling, grammar, and style checks.
🔄 Alternatives to LanguageTool
Grammarly
🟢ActiveAI writing assistant that checks grammar, spelling, tone, and clarity across platforms.
Hemingway Editor
🟢ActiveWriting tool that highlights complex sentences and suggests simpler alternatives.
Jasper AI
🟢ActiveAI writing assistant for marketing teams that generates blog posts, social media content, and ad copy.
Wordtune
🟢ActiveAI writing companion that rephrases and rewrites sentences to improve clarity.
🪦 Other dead Writing & Content tools
DeepStory
🟠Possibly DeadDeepStory was an AI-assisted screenwriting and story-generation product that let users collaborate with generated dialogue and scenes. Its former homepage is unavailable, and its present operating status could not be firmly verified.
Ellipsis AI
🟠Possibly DeadEllipsis AI was an AI writing product associated with the ellipsis-ai.com domain. Publicly verifiable information about its exact features, launch history, ownership, and present availability is limited.
DeepGrammar
🟠Possibly DeadDeepGrammar was a grammar-checking and writing-assistance product associated with a website at deepgrammar.com. Publicly verifiable information about its ownership, launch history, and present availability is limited.
Perfect Tense
🟠Possibly DeadPerfect Tense was an AI-assisted writing platform and API that analyzed spelling, grammar, punctuation, and word choice in text. It was offered to developers and businesses for embedding writing correction into applications.
❓ Frequently Asked Questions
What is LanguageTool used for?
LanguageTool checks writing for spelling, grammar, punctuation, and style issues. It supports multiple languages and works through its web editor, browser extensions, desktop applications, office integrations, and developer API.
Is LanguageTool free?
Yes. LanguageTool offers a free version with core writing checks. Premium plans add more advanced rules, expanded text limits, and other features; exact plan terms can change, so current pricing should be checked on its official website.
Which languages does LanguageTool support?
LanguageTool is multilingual and supports numerous languages and regional variants. Coverage and rule depth vary by language, with particularly extensive support for widely used languages such as English, German, Spanish, French, Dutch, and Portuguese.
Does LanguageTool work with Google Docs and Microsoft Word?
LanguageTool can be used in Google Docs through its browser extension and provides add-ins or integrations for Microsoft Word and other office software. Availability can differ by operating system, browser, and application version.
Is LanguageTool open source?
LanguageTool’s core grammar-checking software is available as open-source software, while the company also operates hosted services and paid Premium products. Its public source code is maintained on GitHub.