A secure, offline-first encrypted notebook application with end-to-end encryption, built with Flutter.
- 📝 Note Management: Create, edit, delete, and organize notes
- 🔐 Password Vault: Securely store passwords and credentials with AES-256-GCM encryption
- 🔒 Zero-Knowledge Architecture: Your master password never leaves your device
- 📱 Fully Offline: Complete functionality without internet connection
- 🌓 Dark Mode: Beautiful light and dark themes
- 🔍 Search: Full-text search across all notes
- 💾 Local Storage: SQLite database with encryption
- 🔑 Secure Key Storage: Uses device keychain for key management
- ☁️ Cloud Sync: Automatic synchronization across devices using Firebase (Coming Soon)
- 📄 Markdown Rendering: Rich text preview for Markdown content (Coming Soon)
- 🌍 Multi-language: i18n support for multiple languages (Coming Soon)
- 📤 Export/Import: Backup and restore functionality (Coming Soon)
- Encryption: AES-256-GCM for data encryption
- Key Derivation: PBKDF2-HMAC-SHA256 with 210,000 iterations
- Secure Storage: flutter_secure_storage for key management
- Zero-Knowledge: Master password is never transmitted or stored
- Offline-First: All data stays on your device
The app follows a clean architecture pattern:
- Presentation Layer: UI components and state management (Riverpod)
- Application Layer: Use cases and business logic
- Domain Layer: Entities and repository interfaces
- Data Layer: Local database (Drift + SQLite)
- Core Layer: Cryptography, utilities, and error handling
Download the latest APK from Releases
System Requirements:
- Android 5.0 (API 21) or higher
- ~60MB storage space
Prerequisites:
- Flutter SDK 3.0 or higher
- Dart SDK 3.0 or higher
Setup:
# Clone the repository
git clone https://github.com/2h0000/sanb.git
cd sanb
# Install dependencies
flutter pub get
# Generate code (for Drift and Riverpod)
dart run build_runner build
# Run the app
flutter run- 📖 Full Documentation - Complete project documentation
- 🚀 Setup Guide - Getting started
- 🔨 Build Guide - Building releases
- 💻 Development Docs - Architecture and development
Code Generation:
dart run build_runner watchTesting:
flutter testBuilding Release:
# Windows
scripts\build\build_release.bat
# Linux/Mac
./scripts/build/build_release.shThis project is licensed under the MIT License - see the LICENSE file for details.
一个安全的、离线优先的加密笔记应用，采用端到端加密技术，使用 Flutter 构建。
- 📝 笔记管理：创建、编辑、删除和组织笔记
- 🔐 密码保险库：使用 AES-256-GCM 加密安全存储密码和凭证
- 🔒 零知识架构：主密码永不离开您的设备
- 📱 完全离线：无需网络连接即可完整使用
- 🌓 深色模式：精美的浅色和深色主题
- 🔍 搜索功能：全文搜索所有笔记
- 💾 本地存储：加密的 SQLite 数据库
- 🔑 安全密钥存储：使用设备钥匙串管理密钥
- ☁️ 云同步：使用 Firebase 跨设备自动同步 （即将推出）
- 📄 Markdown 渲染：Markdown 内容的富文本预览 （即将推出）
- 🌍 多语言：支持多语言国际化 （即将推出）
- 📤 导出/导入：备份和恢复功能 （即将推出）
- 加密算法：AES-256-GCM 数据加密
- 密钥派生：PBKDF2-HMAC-SHA256，210,000 次迭代
- 安全存储：使用 flutter_secure_storage 管理密钥
- 零知识架构：主密码永不传输或存储
- 离线优先：所有数据保存在您的设备上
应用采用清晰的分层架构：
- 表现层：UI 组件和状态管理（Riverpod）
- 应用层：用例和业务逻辑
- 领域层：实体和仓储接口
- 数据层：本地数据库（Drift + SQLite）
- 核心层：加密、工具和错误处理
从 Releases 下载最新的 APK 文件
系统要求：
- Android 5.0（API 21）或更高版本
- 约 60MB 存储空间
前置要求：
- Flutter SDK 3.0 或更高版本
- Dart SDK 3.0 或更高版本
设置步骤：
# 克隆仓库
git clone https://github.com/2h0000/sanb.git
cd sanb
# 安装依赖
flutter pub get
# 生成代码（Drift 和 Riverpod）
dart run build_runner build
# 运行应用
flutter run代码生成：
dart run build_runner watch测试：
flutter test构建发布版本：
# Windows
scripts\build\build_release.bat
# Linux/Mac
./scripts/build/build_release.sh├── lib/ # 源代码
│ ├── app/ # 应用配置、路由、主题
│ ├── core/ # 核心工具和加密
│ ├── data/ # 数据层（本地数据库）
│ ├── domain/ # 领域层（实体、仓储）
│ └── features/ # 功能模块（笔记、保险库、设置）
├── docs/ # 文档
├── scripts/ # 实用脚本
├── firebase/ # Firebase 配置（未来使用）
├── assets/ # 应用资源
├── android/ # Android 平台代码
└── test/ # 测试
欢迎提交 Issue 和 Pull Request！
本项目采用 MIT 许可证 - 详见 LICENSE 文件
- GitHub Issues: https://github.com/2h0000/sanb/issues
- 邮箱：2238770576@qq.com
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