SSheaf
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下载 Sheaf Markdown 编辑器Download Sheaf Markdown Editor

Sheaf 是本地优先的 AI Markdown 编辑器,适合写技术文档、长文草稿、博客和公众号稿件。文稿保存在你的电脑上,AI 功能使用你自己配置的 API Key。Sheaf is a local-first AI Markdown editor for technical docs, long-form drafts, blogs, and newsletters. Your writing stays on your computer, and AI features use your own API key.

Sheaf Markdown 编辑器分屏预览界面截图

选择适合你的安装包

平台建议
macOS Apple Silicon适合 M1、M2、M3、M4 等 Apple Silicon Mac,优先下载 arm64 版本。
macOS Intel适合 Intel 芯片 Mac,下载 x64 版本。
Windows下载 Windows 安装包。Linux 版本计划中,当前可先关注 GitHub Releases。

安装前你需要知道什么

Sheaf 不要求注册账号,也不接管你的云盘。Markdown 文件仍然是普通的 .md 文件,可以继续用 Git、Finder、iCloud Drive、Dropbox 或任何同步工具管理。

AI 改写功能默认不会直接覆盖正文。Sheaf 会展示 diff,你确认后再应用;每次应用前也会保存版本快照,方便回滚。

适合哪些写作场景

技术文档

分屏预览、代码高亮、Mermaid 图表和 KaTeX 公式适合写工程文档。

公众号和博客

把 Markdown 导出为带内联样式的富文本 HTML,减少排版返工。

长文草稿

大纲导航和本地文件保存让长稿更容易组织。

AI 辅助润色

用自然语言要求 AI 改写段落,并在接受前审阅差异。

Choose the right installer

PlatformRecommendation
macOS Apple SiliconFor M1, M2, M3, M4, or later Macs. Choose the arm64 build.
macOS IntelFor Intel-based Macs. Choose the x64 build.
WindowsDownload the Windows installer. Linux builds are planned.

Before you install

Sheaf does not require an account and does not move your writing into a proprietary database. Files stay as ordinary .md documents, so you can manage them with Finder, Git, iCloud Drive, Dropbox, or any sync tool you trust.

AI rewriting does not overwrite your draft automatically. Sheaf shows a diff, lets you decide what to apply, and saves a version snapshot before each accepted edit.

Common writing workflows

Technical docs

Split preview, code highlighting, Mermaid diagrams, and KaTeX math for engineering writing.

Blogs and newsletters

Export Markdown as rich HTML with inlined styles for publishing tools and CMS editors.

Long drafts

Outline navigation and local file storage make long-form writing easier to manage.

AI-assisted editing

Ask AI to rewrite a paragraph in plain language, then review the diff before applying it.