Joplin Note-Taking App

Joplin is an open-source note-taking and to-do application with synchronization capabilities, featuring Markdown support, end-to-end encryption, and Web Clipper browser extension. Created by Laurent Cozic in 2017, with over 47,000 stars as of 2026, Joplin is the most popular open-source alternative to Evernote and OneNote. Key features include: Markdown editor (full Markdown support with live preview, syntax highlighting for code blocks, math notation via KaTeX, and rich text WYSIWYG editor mode), notebooks and notes (hierarchical notebook structure with unlimited nesting, tags for cross-notebook organization, and full-text search across all notes), Web Clipper (browser extension for Chrome and Firefox to save web pages, screenshots, and selections as notes with source URL and formatting preserved), end-to-end encryption (client-side E2E encryption using AES-256 with password-based key derivation, ensuring notes are encrypted before synchronization), synchronization (sync notes across devices via Nextcloud, Dropbox, OneDrive, WebDAV, Amazon S3, Joplin Cloud, local filesystem, or self-hosted Joplin Server), attachments (attach images, PDFs, audio, and any file type to notes with automatic thumbnail generation), templates (note and to-do templates for standardized content creation), plugins (community plugin system extending functionality with Markdown extensions, themes, and integration tools), to-do list (built-in task management with checkboxes, due dates, and alarm notifications), export and import (export notes as JEX, Markdown, HTML, or PDF with all attachments, and import from Evernote ENEX files), revision history (track and restore previous versions of notes), and cross-platform (Windows, macOS, Linux desktop, iOS, Android mobile, and terminal CLI).