Developer tools · Security & Secrets
Harper
Offline, privacy-first grammar checker. Fast, open-source, Rust-powered
by Automattic
Download
Official site: writewithharper.com
About Harper
Offline, privacy-first grammar checker. Fast, open-source, Rust-powered.
How to install Harper
- Click Download — the developer's official website opens in a new tab.
- Download the latest version there and run it. Choose Custom/Advanced where offered, and skip any bundled extras.
- Open Harper once it finishes installing.
Frequently asked questions
Is Harper free to download?
Yes. The Download button sends you to writewithharper.com, the developer's official site, where Harper is available to download. MacPcs doesn't host or modify any files.
Is Harper safe?
Harper downloads directly from the developer. As always, scan the installer with your antivirus and choose Custom setup to skip any bundled extras.
Alternatives to Harper
More
ECCThe agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor…
Win11DebloatA simple, lightweight PowerShell script that allows you to remove pre-installed apps, disable telemetry, as well as perform various other changes to declutter…
AppwriteThe open-source cloud for agents & devs. Including Auth, Databases, Storage, Functions, Messaging, Hosting, Realtime, WAF and more
SiyuanAn open-source, privacy-first, self-hosted knowledge workspace where humans and AI agents work together 开源、隐私优先、自托管的知识工作空间，让人与智能体在此协作
Reactive ResumeA one-of-a-kind resume builder that keeps your privacy in mind. Completely secure, customizable, portable, open-source and free forever. Try it out today!
SqlmapAutomatic SQL injection and database takeover tool
TrivyFind vulnerabilities, misconfigurations, secrets, SBOM in containers, Kubernetes, code repositories, clouds and more
IFixAiIndependent Auditing of AI Agents. Run by human or the agent itself, to answer the most crucial question in the AI Agent Economy. Is the agent doing what is…