Text correction with Harper

Luiz recently received a recommendation about Harper, a new grammar checking tool developed by Automattic using Rust.

The project’s repository describes Harper as meeting the developer’s specific requirements: it is the grammar checker that meets your needs, analyzing documents in milliseconds with minimal memory usage.

Key features

  • Fast performance: millisecond-level analysis
  • Low memory usage: less than 1/50 of LanguageTool’s usage
  • Complete privacy: runs locally, without sending data to servers
  • WebAssembly compatibility: can run on multiple platforms

Harper Interface

Installation

Installation is simple through the extension stores for:

  • Web browsers
  • Visual Studio Code
  • Obsidian

For other platforms, comprehensive documentation is available at writewithharper.com/docs/about.

Available Platforms