PaperTodo · A Sheet of Paper

Let a few quiet, useful, unobtrusive sheets of paper live on your desktop.
A lightweight, openly co-created Windows desktop sticky-note app.

_{PaperTodo remains free to download on GitHub. If you'd like to support its continued development, you're welcome to purchase it on the Microsoft Store. Thank you!}

Language: English | 简体中文
Official Website
User Manual · Changelog

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Preview

Papers

Markdown View

Edge Browsing

Capsule Mode	Advanced Capsules
Papers can collapse into compact capsules to reduce desktop clutter.	Collapsed capsules automatically dock to screen edges and slide out on hover.

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Philosophy

• Paper first — Every paper is an independent window that lives directly on the desktop, with no layered management console to open first.
• Ready immediately — Write when you want, check things off when done; everything saves automatically and the interaction path stays short.
• No unnecessary management — PaperTodo deliberately avoids complex project-management models, reducing the mental overhead of everyday capture.
• Native & lightweight — Built natively with WPF, without a Web wrapper, for fast startup and low resource use.
• Restrained interaction — The UI stays clean and low-distraction: quiet when idle, immediately available when needed.

No unnecessary interaction layers. No unnecessary visual focus.

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Core Features

1. Two Basic Paper Types

• Todo Paper: A clean, efficient checklist with drag-and-drop ordering, continuous swipe multi-selection, and smart splitting of multi-line paste; completed items can be cleared automatically or moved to the bottom.
• Note Paper: Lightweight Markdown and visual notes with three levels of real-time rendering, natural editing/reading flow, and support for pasting or dropping local images.

2. Edge Capsules & Live Preview Cards

• Collapse & Dock: Click the top-right button or press Ctrl+W to collapse a paper into a compact capsule that automatically docks to a screen edge and frees up desktop space.
• Hover Preview Cards (Preview): Hover an edge capsule to smoothly open a lightweight interactive preview card and inspect content without opening the full paper window:
  • Todo Preview: Scroll, check, or uncheck visible tasks directly in the hover card; click the card background to open the full paper.
  • Note Preview: Instantly renders Markdown body layout and image placeholders.
  • Intent Prediction & Seamless Handoff: Built-in pointer-intent prediction keeps transitions smooth while moving across adjacent capsules and retracts automatically when the pointer leaves.
• Multi-Monitor Flow & Master Capsule: Drag capsules across displays and edges; the master capsule at the top can collapse the whole queue and can be dragged to adjust the queue's starting height.

3. New Plugin System (Preview)

• Desktop Micro-App Expansion: Papers are not limited to notes—you can switch them into clocks, focus Pomodoro timers, review pools, and other rich plugins: a next-generation take on Windows desktop widgets.
• Deep Capsule & Top-Bar Integration: Plugins can collapse into dedicated capsules, provide edge-hover cards and custom top-bar actions, while keeping their data stored independently.
• Drop-in Use: Place a plugin folder in plugins/ and PaperTodo can recognize it directly. To build your own plugin, see the Plugin Development Manual.

4. Ultra-Smooth Native Experience & High-Refresh Tuning

• Full high-refresh optimization: Paper folding/unfolding, edge drawer motion, card handoff, and cross-monitor dragging are deeply tuned for frame pacing, with full support for 120Hz/144Hz/165Hz+ displays for a smooth, stutter-free feel.
• Pure native responsiveness: Built with .NET 10 and native WPF without Web-wrapper overhead, aiming for millisecond-level interaction, very low memory/CPU use, and unobtrusive always-on operation.
• Incremental rendering for long notes: Note input uses localized incremental parsing so long text-and-image notes remain responsive and IME input stays smooth.
• Smooth multi-monitor and mixed-DPI flow: Deeply adapted for multi-display setups with different scaling factors, keeping cross-screen dragging and edge docking precise without flicker or distortion.

5. Universal Todo Linking & Script Capsules

• Quick Launch & Universal Linking: Drag the link icon from another paper's top bar, or drop a file/folder from File Explorer onto a todo item, then click it to jump straight to the target.
• Script Capsules (PowerShell): Put !p or !power on the first line of a note to turn it into a script runner; when collapsed it becomes a lightning capsule that executes the script when clicked.

6. Advanced Labs Features (Preview)

• Local MCP Interface: Start PaperTodo with --mcp to expose a standard MCP service, allowing authorized external AI assistants such as Claude or Cursor to securely read, write, and manage todos and notes.
• Third-Party Window Tethering: Drag to attach a paper to any third-party app window so it follows that window smoothly as it moves, minimizes, and restores.
• Scheduled Reminders: Todo items support custom countdown reminders with tray notifications and alert sounds when due.
• Idle Behavior & Desktop Integration: Papers can auto-collapse into capsules on focus loss and compact their title bar while idle; global shortcuts can send papers behind other windows and enable mouse click-through for deeper desktop integration.

7. Customization & Data Ownership

• Appearance Customization: Follow system/light/dark themes, choose from Warm Paper, Ink, Forest, and Rosy palettes, use a custom font by placing papertodo.ttf, and switch between multiple UI languages.
• Local Control: Data and images stay in the application directory (data.json and note-assets.lmdb), with automatic snapshot backups before writes and full offline operation.

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Common Operations & Shortcuts

Action	Shortcut / Trigger	Description
Collapse / Hide Paper	Ctrl + W or middle-click the top bar	Collapses into a capsule when enabled; otherwise hides the paper
Cancel / Retract	Esc	Cancels multi-selection/drag; collapses the current paper when no other interaction is active
Undo / Redo	Ctrl + Z / Ctrl + Y	Available in both Todo and Note, with up to 100 history steps
Note Formatting	Ctrl + B / I / K	Bold, italic, insert link
Note Font Zoom	Ctrl + Scroll Wheel	Zoom note text; click the percentage at bottom-right to reset
Retrieve All Papers	Double-click tray icon	Highlights and pulls all papers back into view, useful after monitor disconnects or window drift

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Download & Run

PaperTodo is a portable single-file application and requires no installation. Download the version you need from Releases:

• PaperTodo-...-self-contained.exe (Recommended): Includes the .NET runtime and can be launched directly after download.
• PaperTodo-...-no-runtime.exe: Smaller download for systems that already have .NET 10 Desktop Runtime (x64) installed.

Tip: Keep the executable in a dedicated writable directory such as D:\Apps\PaperTodo\. Avoid read-only locations or temporary extraction folders. Place PaperTodo.ico in the application directory to use it as a custom tray icon.

On first launch, papers appear on the desktop and the PaperTodo tray icon remains available. If papers are covered or moved off-screen, double-click the tray icon to show and retrieve all papers.

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Documentation & Advanced Guides

• 📖 Full User Manual: Includes a three-minute getting-started guide, advanced Todo/Note usage, multi-monitor capsule management, the full settings reference, script rules, device-migration guidance, and FAQ.
• 🧩 Plugin Development Manual: Learn the PaperTodo paper-body plugin extension model, protocol details, and example index.
• 📋 Changelog: Review release changes and fixes.

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Build & Dependencies

Local builds require Windows and the .NET 10 SDK:

git clone --recurse-submodules https://github.com/snownico0722/PaperTodo.git
cd PaperTodo
dotnet build -c Release

If you cloned without submodules, initialize them first:

git submodule update --init --recursive
dotnet build -c Release

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Feedback & Community

• Bugs & suggestions: GitHub Issues

Thanks to the linux.do community for the support.

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简体中文（点击展开完整 README）

PaperTodo · 一张纸

让桌面上有几张安静、可用、不打扰人的纸。
一个轻量、自由共创的 Windows 桌面便签。

_{PaperTodo 仍可在 GitHub 免费下载。如果你愿意支持项目持续开发，欢迎前往微软商店自愿购买。非常感谢！}

语言：简体中文 | English
官方网站
用户手册 · 更新日志
QQ 交流群：551612664——奇奇怪怪的魔法研究基地

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预览

纸片

Markdown 浏览

边缘浏览

胶囊模式	高级胶囊
纸片可折叠为小胶囊，减少桌面占用。	折叠胶囊自动贴到屏幕边缘，悬浮时滑出。

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设计理念

• 纸片优先 — 每张纸都是独立窗口，直接常驻桌面，无需打开层级复杂的管理后台。
• 即时使用 — 想记就写，勾选即完；所有内容自动保存，操作路径极短。
• 无需管理 — 不刻意承载复杂的项目管理逻辑，降低日常记录的心智负担。
• 原生轻量 — 基于 WPF 原生开发，拒绝 Web 套壳，启动快速且资源占用低。
• 交互克制 — 界面干净低干扰，该安静时安静，需要时随时呼出。

拒绝长出非必要的交互层级和视觉焦点负担。

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核心特性

1. 两种基础纸片

• 待办纸（Todo）：清爽高效的任务清单。支持拖拽排序、连续滑动多选、多行粘贴智能拆分；已完成项支持自动清除或置底。
• 笔记纸（Note）：轻量 Markdown 与图文备忘。支持常用 Markdown 语法与三档实时渲染，编辑与浏览自然融合；支持粘贴或拖入本地图片。

2. 边缘胶囊与实时预览卡片

• 折叠贴边：点击右上角或按 Ctrl+W 将纸片折叠为小胶囊，自动靠在屏幕边缘，彻底释放桌面空间。
• 悬停预览卡片（Preview）：鼠标悬停在边缘胶囊上，即可平滑展开轻量、可交互的预览卡片，无需打开完整大窗口即可即时速览：
  • 待办预览：直接在悬停卡片上滚动查看、勾选完成或撤销，点击卡片背景呼出完整纸片；
  • 笔记预览：即时渲染 Markdown 正文排版与图片占位；
  • 意图预测与顺滑接续：内置鼠标移动意图预测，在相邻胶囊间连续滑动时平滑过渡切换，离开后自动收回。
• 多屏流动与主胶囊：支持多显示器拖拽换边；顶部主胶囊可一键收拢整列入口，拖动可调节队列起始高度。

3. 全新插件系统（Preview）

• 桌面微应用扩展：便签不仅能记笔记，还可一键切换为时钟、专注番茄钟、复盘池等丰富插件，下一代的windows桌面小组件。
• 深度融入胶囊与顶栏：插件同样支持折叠为专属胶囊、边缘悬停卡片与专属顶栏按钮，且数据独立安全保存。
• 即放即用：将插件文件夹放入 plugins/ 目录即可直接识别。如需自行开发插件，可查阅 插件开发手册。

4. 极致流畅与全链路高刷调优

• 全面适配高刷新率：无论是纸片折叠展开、边缘抽屉滑出、卡片顺滑接续还是跨屏拖拽，全链路动效均经过深度帧率调优，完美适配 120Hz/144Hz/165Hz+ 高刷屏，细腻丝滑、完全不掉帧。
• 纯原生极速响应：基于 .NET 10 与 WPF 原生构建，拒绝任何 Web 套壳的性能开销，毫秒级即点即开，内存与 CPU 占用极低，常驻后台毫无负担。
• 长笔记增量渲染：笔记输入采用智能局部增量解析，面对长篇图文依然流畅跟手，彻底杜绝输入法卡顿。
• 多屏与混合 DPI 顺畅流转：深度适配多显示器与不同缩放比例环境，跨屏拖拽与边缘停靠计算精确，不闪烁、不形变。

5. 待办万物互联与脚本胶囊

• 快速启动与万物关联：从另一张纸片顶栏拖出关联图标，或直接从文件管理器拖入文件/文件夹至待办项，点击即可一键直达。
• 脚本胶囊（PowerShell）：笔记首行写入 !p 或 !power，便签即可化身脚本运行器；折叠后显示闪电胶囊，点击直接执行脚本命令。

6. 实验室深度能力（Preview）

• 本地 MCP 接口：支持通过 --mcp 模式启动标准 MCP 服务，允许外部 AI 助手（如 Claude、Cursor 等）按授权安全读写与管理待办和笔录。
• 第三方窗口绑定：可拖拽绑定至任意第三方软件窗口，随目标窗口一同平滑移动、最小化与还原。
• 定时提醒：待办支持设置自定义倒计时提醒（到期托盘通知与提示音）。
• 静置与桌面融入：支持失焦自动收起为胶囊、静置收拢标题栏；支持快捷键一键置底并开启鼠标穿透，彻底融入桌面壁纸。

7. 个性化与数据安全

• 外观定制：跟随系统/浅色/深色主题，内置暖纸、墨、林、霞四套配色；支持自定义字体（放置 papertodo.ttf 即可生效）与多语言界面。
• 本地自主可控：数据与图片完整存放在程序所在目录（data.json 与 note-assets.lmdb），写盘前自动快照备份，完全离线运行。

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常用操作与快捷键速查

操作	快捷键 / 触发方式	说明
折叠 / 隐藏纸片	Ctrl + W 或顶栏中键	启用胶囊时折叠为胶囊，未启用时隐藏
取消交互 / 收起	Esc	取消多选/拖拽；无状态时折叠当前纸片
撤销 / 重做	Ctrl + Z / Ctrl + Y	待办与笔记通用（支持深达 100 步记录）
笔记文本格式	Ctrl + B / I / K	对应加粗、斜体、插入链接
笔记字号缩放	Ctrl + 滚轮	缩放正文字号（右下角点击百分比一键复位）
找回全部纸片	双击托盘图标	显亮并拉回全部纸片（多屏断开或窗口漂移时瞬间召回）

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下载与运行

PaperTodo 为绿色单文件程序，无需安装。请在 Releases 页面 下载对应版本：

• PaperTodo-...-self-contained.exe（推荐）：已内嵌 .NET 运行时，下载后双击即可直接运行。
• PaperTodo-...-no-runtime.exe：体积更小，适用于电脑已安装 .NET 10 Desktop Runtime (x64) 的环境。

提示：建议将程序存放在有写入权限的专用目录（如 D:\Apps\PaperTodo\），请勿存放在只读目录或临时解压目录中。程序目录下放置 PaperTodo.ico 可作为自定义托盘图标。

首次运行后，纸片会出现在桌面上，托盘区会常驻 PaperTodo 图标。若纸片被遮挡或移出屏幕，双击托盘图标即可显示并拉回所有纸片。

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详细文档与进阶

• 📖 完整用户手册：包含新手 3 分钟入门指南、待办/笔记深度用法、多屏胶囊调度、全量设置项大字典、脚本编写规则、换机数据迁移教程及常见问题解答（FAQ）。
• 🧩 插件开发手册：了解 PaperTodo 正文插件扩展机制、协议说明与示例索引。
• 📋 版本更新日志：查阅更新与修复记录。

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构建与依赖

本地编译需 Windows 环境并安装 .NET 10 SDK：

git clone --recurse-submodules https://github.com/snownico0722/PaperTodo.git
cd PaperTodo
dotnet build -c Release

如克隆时未拉取子模块，请先执行：

git submodule update --init --recursive
dotnet build -c Release

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反馈与交流

• 提交 Bug 或建议：GitHub Issues
• QQ 交流群：551612664（奇奇怪怪的魔法研究基地）

感谢 linux.do 社区的支持。