automattic/harper

Skip(New discovery — enrichment pending)

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Why this repo matters

Offline, privacy-first grammar checking runs locally via Rust and WebAssembly without sending text to external servers.
Cross-platform support includes Chrome extension, Node.js, React, and Svelte integrations for diverse developer workflows.
Open-source alternative to proprietary grammar tools offers transparent logic and self-hostable validation for sensitive documentation.

Trend Velocity Score: 0.00
Opportunity Score: 10.00
Confidence Score: 80.00
Language: Rust
License: Apache-2.0
Topics:
🏷️ chrome-extension 🏷️ developer-tools 🏷️ english-language 🏷️ grammar-checker 🏷️ nodejs 🏷️ react 🏷️ rust 🏷️ svelte 🏷️ webassembly
First Seen: 2 months ago

15.0k stars+445 over 6 snapshots8/17/2026 – 9/4/2026

The agent that grows with you

DeepSeek Harness: Everything is a Plugin.

Use Garry Tan's exact Claude Code setup: 23 opinionated tools that serve as CEO, Designer, Eng Manager, Release Manager, Doc Engineer, and QA

An AI skill that provides design intelligence for building professional UI/UX across multiple platforms.