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Developer ToolsAlternative to GrammarlyAlternative to HemingwayAlternative to ProWritingAid

LanguageTool

Open-source grammar, style, and spell checker supporting over 30 languages.

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LicenseLGPL-2.1
GitHub stars12.5k
Last commit1 weeks ago
Tags6 topics
Spell CheckerNlpGrammar CheckerMultilingualGrammarly AlternativeJava
Overview

Why consider LanguageTool?

LanguageTool is an open-source multilingual grammar, style, and spelling checker. It analyzes sentence structures, catches nuanced contextual grammatical errors, and integrates into browsers, LibreOffice, and VS Code.

Guided learning

Learn LanguageTool by building

Practical setup notes, real use cases, and copy-ready examples in one focused guide.

1 min read 2 sections
In this guide2 sections

Overview of LanguageTool

LanguageTool provides self-hostable HTTP API endpoints for grammar checking, offering private rule-based and neural-network language analysis.

Running with Docker

bash
1docker run -d \
2 --name languagetool \
3 -p 8010:8010 \
4 erikvl87/languagetool:latest

LanguageTool is licensed under the GNU LGPL-2.1 license.

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LanguageTool FAQs

LanguageTool is listed as a Developer Tools tool on TiloBox. Review the overview, features, and official documentation on this page to decide whether it solves your specific workflow.

Start with the project's GitHub repository and official website for supported installation and deployment instructions. Test the setup with representative data or a small project before rolling it out more widely.

LanguageTool is listed under the LGPL-2.1 license. Read the complete license text and the project's notices before using, modifying, or distributing the software.

Production readiness depends on your requirements. Review maintenance activity, security practices, documentation, backup and upgrade procedures, and compatibility with your stack; then validate it in a non-production environment.

LanguageTool is listed as an alternative to Grammarly. Compare the core workflow, deployment model, integrations, and licensing against your must-have requirements before switching.