LanguageTool (2026)

LanguageTool is AI-Powered Writing Assistant for 30+ Languages – Grammar, Style & More. LanguageTool is an AI-powered, multilingual writing assistant and open-source software for spelling, grammar, punctuation, style, tonality, and repetition checking. It supports 30+ languages, offers advanced KI-powered rephrasing, personal and team style guides, the rigorous mode for professional texts, unlimited character limits in premium, personal dictionary, and is available as a web app, browser extensions, API, desktop apps, and plugins for office suites like LibreOffice, Microsoft Word, Google Docs, and Slack. DSGVO-compliant with servers in Germany and the EU. Available on Web App, Browser Extension, Desktop App and 1 more platforms, LanguageTool is designed to enhance productivity and deliver professional-grade writing & translation capabilities.

LanguageTool offers Freemium pricing options. Free plan with 20,000 characters per check; Premium individual at $4.99/month (billed annually at $59.90) or $5.01/month (monthly billing); Team plan starting at $9.49/month for 2 users Current estimates suggest pricing from $0 – $9.49 / month. You can start with a free tier to test the platform before committing to a paid plan. For the most current pricing details and plan comparisons, visit the official LanguageTool pricing page or contact their sales team for custom enterprise quotes.

LanguageTool takes data privacy seriously and implements industry-standard security measures. Data is hosted in Global, providing transparency about where your information resides. For comprehensive details about data handling, encryption, and privacy practices, review their official privacy policy. Security and compliance are continuously updated to meet evolving industry standards.

LanguageTool is available on Web App, Browser Extension, Desktop App, Plugin/Integration. The web application provides full functionality directly in your browser without requiring downloads. This multi-platform approach ensures you can use LanguageTool wherever and however you work best.

The freemium model gives you access to essential features at no cost, with premium capabilities available through paid upgrades. Testing the platform before committing ensures it meets your specific requirements and integrates smoothly with your existing workflows. Support for Over 20 languages including English, Spanish, French, German, and more. makes it accessible to global users.

LanguageTool accepts Supports text input in various formats including plain text, Microsoft Word documents, and Google Docs. as input formats, making it compatible with your existing files and workflows. Output is delivered in Delivers detailed error reports with suggestions for corrections to help users improve the quality of their writing., ensuring compatibility with downstream tools and platforms. This format flexibility allows seamless integration into diverse tech stacks and creative pipelines. Whether you're importing data, exporting results, or chaining multiple tools together, LanguageTool handles format conversions efficiently without manual intervention.

LanguageTool is developed and maintained by LanguageTool, based in Germany. Most recently updated in November 2025, the platform remains actively maintained with regular feature releases and bug fixes. This ongoing commitment ensures LanguageTool stays competitive and aligned with industry best practices.

LanguageTool is freely available to everyone without registration requirements. You can start using the platform immediately without going through lengthy approval processes.

LanguageTool uses Pay-as-You-Go as billing metrics. This usage model ensures you only pay for what you actually use, avoiding unnecessary overhead costs for features you don't need.

LanguageTool supports Cloud deployment configurations. Cloud-hosted options provide instant scalability without infrastructure management overhead. Choose the deployment model that best aligns with your technical requirements, security constraints, and operational preferences.

LanguageTool is primarily designed for Content Creators, Educators, Students and Remote Workers. Content professionals rely on it for producing high-quality written content efficiently. Whether you need automation, creative assistance, data analysis, or communication support, LanguageTool provides valuable capabilities for multiple use cases and skill levels.

Yes! LanguageTool offers video tutorials including "LanguageTool | Free Open Source Alternative to Grammarly" to help you get started quickly and master key features. Video content provides step-by-step walkthroughs that complement written documentation, making it easier to visualize workflows and understand best practices. These tutorials cover everything from basic setup to advanced techniques, ensuring users of all skill levels can leverage the platform effectively. Visual learning materials are particularly helpful for onboarding new team members or exploring complex features that benefit from demonstration.

Yes, LanguageTool provides SDK support for Python, JavaScript/TypeScript. This enables developers to integrate the tool's capabilities into custom applications.

Yes, LanguageTool is open source, meaning the source code is publicly available for inspection, modification, and contribution. This transparency allows developers to verify security practices, customize functionality for specific needs, and contribute improvements back to the community. Open source projects often benefit from rapid innovation and community-driven development. LanguageTool maintains the project while welcoming community contributions. You can self-host the solution for complete control over your data and deployment environment.

LanguageTool is actively maintained with regular updates to improve features, security, and performance. LanguageTool continuously develops the platform based on user feedback and industry advancements. Updates typically include new AI capabilities, interface improvements, bug fixes, and security patches. Comprehensive API documentation is kept current with each release, making it easy for developers to leverage new features. Staying up-to-date ensures you benefit from the latest AI advancements and best practices in writing & translation.

LanguageTool has received 4 user reviews with an average rating of 4.0 out of 5 stars. This solid rating indicates the tool meets or exceeds most users' expectations across various use cases. Additionally, LanguageTool has received 51 favorites from the community, indicating strong interest and recommendation. Reading detailed reviews helps you understand real-world performance, common use cases, and potential limitations before committing to the platform.

Yes, LanguageTool's listing was last verified within the past quarter by our editorial team. We regularly review and update tool information to maintain accuracy. Our verification process checks pricing accuracy, feature availability, platform support, and official links. If you notice outdated information, you can submit corrections through our community contribution system to help keep the directory current and reliable for all users.

LanguageTool distinguishes itself in the Writing & Translation category through accessible pricing options that lower the barrier to entry. Multi-platform support across 4 platforms provides flexibility that single-platform alternatives lack. When evaluating options, consider your specific requirements around pricing, features, integrations, and compliance to determine the best fit for your use case.

The learning curve for LanguageTool varies depending on your experience level and use case complexity. Video tutorials offer visual guidance that accelerates the onboarding process. Comprehensive API documentation supports developers who need to integrate the tool programmatically. Most users report becoming productive within a few days depending on their background. LanguageTool balances powerful capabilities with intuitive interfaces to minimize the time from signup to value delivery.

LanguageTool was most recently updated in November 2025, indicating regular maintenance and improvements. LanguageTool maintains a development roadmap informed by user feedback and market trends. Regular updates typically include performance optimizations, bug fixes, security patches, and new capabilities that expand the tool's functionality. Users can expect continued improvements as the product matures.

LanguageTool provides multiple support channels to help users succeed. Comprehensive API documentation covers technical integration details, code examples, and troubleshooting guides. Privacy policy documentation explains data handling practices and compliance measures. Video tutorials demonstrate features visually for different learning preferences. LanguageTool typically offers additional support through email, chat, or ticketing systems depending on your plan. The combination of self-service resources and direct support channels ensures you can resolve issues quickly and maximize your investment in the platform.

When evaluating LanguageTool for long-term use, consider several indicators: Development by LanguageTool provides organizational backing and accountability. Growing community interest indicates positive momentum. High user satisfaction ratings suggest the platform delivers on its promises. Recent updates demonstrate active maintenance and feature development. The open-source nature reduces vendor lock-in risks and enables community-driven continuity. Consider your specific requirements, budget constraints, and risk tolerance when making long-term platform commitments.