Automattic/harper
Offline, privacy-first grammar checker. Fast, open-source, Rust-powered
⚡ Executive Summary & Quick Facts
Authoritative Sourceharper is harper is an open-source project written in Rust: Offline, privacy-first grammar checker. Fast, open-source, Rust-powered..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of November 2026), Automattic/harper has accumulated 16,252 GitHub stars and 707 forks. It is written in Rust, licensed under Apache-2.0, and ranks #1,049 globally. It is actively maintained with the latest commit recorded on Oct 9, 2026.”
| Repository | Automattic/harper ↗ |
|---|---|
| Primary Category | chrome extension |
| Language & Stack | Rust |
| Software License | Apache-2.0 |
| Community Traction | ★ 16.3K stars · ⑂ 707 forks · #1,049 globally |
| Maintenance | ● Active (Last commit: Oct 9, 2026) · 983 open issues |
| Target Audience | Developers and engineering teams building with Rust, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 90/100 · Grade AYes, harper is actively maintained. Continuous telemetry recorded the last code commit on Oct 9, 2026 (34 days ago). Supported by 16,252 stars and 707 community forks, this repository holds a calculated health index of 90/100, reflecting regular maintenance (34 days ago) and active community feedback (983 open).
Star History
Add Live Star History & Verified Badges to README.md
Keep your repository README looking professional and dynamic. As our continuous crawler records new stars, these official SVG badges update in real time with zero maintenance.
Renders your high-resolution star trajectory chart right inside your GitHub README or project docs.
[](https://githubrepo.cloud/repo/Automattic/harper?utm_source=readme_chart)Compact badges for your README header. Real-time stars, velocity, health audit, and rank.
[](https://githubrepo.cloud/repo/Automattic/harper?utm_source=readme_badge) [](https://githubrepo.cloud/repo/Automattic/harper?utm_source=readme_badge) [](https://githubrepo.cloud/repo/Automattic/harper?utm_source=readme_badge) [](https://githubrepo.cloud/repo/Automattic/harper?utm_source=readme_badge) [](https://githubrepo.cloud/repo/Automattic/harper?utm_source=readme_badge)Momentum
+0
STARS · LAST 30 DAYS
1
PER DAY
#123
MOST-STARRED Rust
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +0 | +0 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +0 | +0 | +35 |
harper gained 0 stars in the last 30 days, about 1 a day, and now has 16.3K. It is about 3 years old and has averaged roughly 5.4K stars a year. It ranks #123 among Rust repositories and #1,049 across all languages on GitHubRepo.
Trending Record
44
DAYS ON TRENDING
#176
BEST RANK
Sep 24, 2026
FIRST APPEARANCE
Active
STATUS TODAY
harper has maintained a continuous presence across global trending indexes, peaking at #176. Below is the 30-day activity profile:
💡 Overview
harper is an open-source project written in Rust: Offline, privacy-first grammar checker. Fast, open-source, Rust-powered.
Engineered for speed, consistency, and developer ease, it solves common hurdles in chrome-extension, developer-tools, english-language. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in Rust for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ cargo install harper⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Rust toolchain (rustc / cargo >= 1.70)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
harper coordinates its core functionality through a modular Rust pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Modern Web Interfaces
Build dynamic, responsive user experiences with component-driven architecture.
Enterprise Design Systems
Standardize design tokens, accessible widgets, and themes across engineering teams.
Interactive Data Dashboards
Render real-time telemetry, user feeds, and analytics with sub-millisecond updates.
Cross-Platform Web Apps
Deploy performant single-page applications optimized for both mobile and desktop browsers.
🚀 Getting Started
Install harper using your package manager: `cargo install harper`
Initialize your project workspace or configuration file for harper.
Import harper into your codebase or invoke it directly from your terminal.
Execute your test suite or run `harper --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with Rust, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
Automattic/harper is currently ranked #1,049 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #1,044 | go-task/task | Go | ★ 16.3K | Compare ↗ |
| #1,045 | wkentaro/labelme | Python | ★ 16.3K | Compare ↗ |
| #1,046 | ianyh/Amethyst | Swift | ★ 16.3K | Compare ↗ |
| #1,047 | MaterialDesignInXAML/MaterialDesignInXamlToolkit | C# | ★ 16.3K | Compare ↗ |
| #1,048 | electric-sql/pglite | TypeScript | ★ 16.3K | Compare ↗ |
| #1,049 | Automattic/harper This Project | Rust | ★ 16.3K | |
| #1,050 | ParadevAI/Paradev | TypeScript | ★ 16.2K | Compare ↗ |
| #1,051 | PyO3/pyo3 | Rust | ★ 16.2K | Compare ↗ |
| #1,052 | cloudflare/cloudflared | Go | ★ 16.2K | Compare ↗ |
| #1,053 | mikefarah/yq | Go | ★ 16.2K | Compare ↗ |
| #1,054 | apache/doris | Java | ★ 16.2K | Compare ↗ |
Frequently Asked Questions
What does harper do? +
Offline, privacy-first grammar checker. Fast, open-source, Rust-powered
Is harper actively maintained in 2026? +
Yes, harper is actively maintained. The latest code push was recorded on Oct 9, 2026 (34 days ago). It holds a calculated Maintenance Health Score of 90/100 (A rating) with 16,252 stars and 983 open issues.
What language is harper written in? +
The primary language is Rust. Topics include: chrome-extension, developer-tools, english-language, grammar-checker, nodejs.
How many stars does harper have? +
harper has 16,252 stars and 707 forks on GitHub.
How does harper rank among GitHub repositories? +
With 16,252 stars, Automattic/harper is ranked #1,049 globally across all repositories tracked on GitHubRepo and #123 among Rust projects.
What license is harper distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
