Discover · GitHub · Harper↑ +624 today
Privacy-oriented offline grammar checker
Harper offers an offline and privacy-oriented grammar checker developed with the Rust language. This open source tool aims to create a high-performance and safe alternative in text analysis processes.
Updates
- September 17, 2026: Stars 15,236 → 15,446, latest release v2.11.0 (September 16, 2026).
- September 10, 2026: Stars 14,903 → 15,236, latest release v2.10.0 (September 9, 2026).
- September 2, 2026: Stars 14,876 → 14,903, latest release v2.9.1 (September 1, 2026).
- September 1, 2026: Stars 14,833 → 14,876, latest release v2.8.0 (August 13, 2026).
What you get
- Quickly checks text in milliseconds
- Protects privacy by processing your data locally
- Offers high performance with low memory usage
Installation
macOS (Homebrew)
brew install harperGetting started
- Official source →
Related dictionary terms
Who it is forIt is suitable for English content producers and software developers who want to quickly moderate their posts offline and without compromising privacy.
LicenseApache-2.0
Links
TreScout did not build this tool · we found it in GitHub trends and wrote it up. This page describes the repository as of 2026-07-24: The star count and our text belong to that day, the repository may have changed since. Check the repository link for the current state. This page was machine-translated from the Turkish original · the Turkish version prevails.