49.7k Star！免费开源 Markdown 笔记神器，不花钱是真滴香～

Core Viewpoint - Joplin is a free, open-source, cross-platform note-taking application that supports various operating systems and offers a wide range of features for users to manage their notes effectively [2][3]. Features Overview - Joplin supports multiple platforms including Windows, macOS, Linux, Android, and iOS, providing a comprehensive solution for note-taking across devices [3][9]. - The application features a professional Markdown editor with real-time preview, LaTeX support for mathematical formulas, Mermaid diagrams, code highlighting, and table support [9]. - Users can choose from various synchronization options such as WebDAV, Dropbox, OneDrive, Nextcloud, Joplin Cloud, or self-hosted servers [9]. - Joplin emphasizes security with end-to-end encryption, private cloud options, password protection for notes, and encrypted exports [9]. - The application is designed for offline use, allowing users to edit without an internet connection, with automatic background synchronization when online [9]. - Joplin includes advanced knowledge management features such as multi-level notebooks, tagging systems, global search (including regex support), note linking, and template functionality [9]. - The application has a rich ecosystem of extensions, including themes, PDF export, OCR recognition, calendar integration, and over 100 plugins available for various functionalities [9][10]. - Joplin allows for seamless data migration, including perfect import from Evernote (attachments and metadata included) and bulk import/export of Markdown files [9]. - Users can customize the application extensively, including shortcut settings, editor themes, interface layout, and synchronization frequency [9]. - Joplin is open-source under the MIT license, with an active community and transparent code, avoiding subscription traps [9]. - The application serves as a productivity tool with features like to-do lists, task reminders, note history versions, and collaborative editing (supported by plugins) [9]. - Advanced search capabilities allow users to filter notes by notebook, tag, date, and geographical location, with the ability to save search results [9]. - Joplin supports attachment management, allowing previews of PDFs, Word documents, Excel files, images, and organizing resource folders [9].