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Harper vs LanguageTool

Learn how Harper and LanguageTool differ in their key features, development activity, technology stack and community adoption, so you can decide which of these productivity & utilities is best for you.

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Harper

Open source grammar checker that analyzes your writing quickly while keeping your data completely private and secure on your device.
  • Stars


    10,462
  • Forks


    337
  • Last commit


    11 hours ago
  • Repository age


    3 years
  • License


    Apache-2.0
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Screenshot of Harper
Favicon of LanguageTool

LanguageTool

Check grammar, punctuation, and spelling errors instantly with AI-powered technology. Supports 30+ languages with browser extensions and desktop apps.
  • Stars


    14,452
  • Forks


    1,509
  • Last commit


    7 hours ago
  • Repository age


    13 years
  • License


    LGPL-2.1
View Repository

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Screenshot of LanguageTool

Detailed Comparison

Both Harper and LanguageTool have their unique strengths and serve similar purposes effectively. Consider your specific needs regarding popularity, activity, technology, maturity, licensing and features when making your decision.

Comparable
Community & Popularity

Both tools have similar popularity levels, with Harper having 10,462 stars and LanguageTool having 14,452 stars on GitHub. In terms of developer contributions, LanguageTool has 1,509 forks, indicating strong developer engagement.

Comparable
Development Activity

Both projects show recent activity, with Harper last updated 11 hours ago and LanguageTool 7 hours ago.

Comparable
Technology Stack

Both tools share common technology foundations, being built with CSS, Bash. However, they differ in their additional technology choices: Harper uses JavaScript, Typescript, JSX, Rust, PHP, SvelteKit while LanguageTool leverages Python, Java, Perl.

LanguageTool wins
Project Maturity

LanguageTool has been in development longer, starting 13 years ago, compared to Harper which began 3 years ago. This 10.4-year head start suggests LanguageTool may have more mature features and established processes.

Comparable
Licensing

The projects use different licenses: Harper is licensed under Apache-2.0 while LanguageTool uses LGPL-2.1. Consider the licensing requirements when choosing for your project.

Comparable
Use Cases & Features

Both tools serve similar use cases in Productivity & Utilities, Browser Extensions.