Joplin is a free and open-source note and task[1] management software application. The application enables users to create notes and to-do lists and organize them in notebooks and group them with tags. Joplin's workflow and featureset is most often compared to Evernote.[2][3][4][5][6]
Notes are in Markdown which can be extended with Fountain (markup in support of writing screenplays) and Mermaid (diagrams).
Notes can be edited in the included syntax-highlighted text editor, the included WYSIWYG editor, or using a favorite external editor launched from within the application with edits mirrored back to Joplin.
Notes can be synchronized between devices using cloud or network storage intermediaries: Nextcloud, Dropbox, OneDrive, WebDAV or the file system (network mounted directory). Synchronization security can be enhanced with fully supported end-to-end encryption between devices.[7]
Arbitrary files can be stored as linked objects within notes: images, binary blobs, anything.
Search is supported within documents and across all notebooks.
Joplin supports import from and export to several industry-standard and application-specific data formats:
Import: JEX (Joplin Export file), Markdown, and ENEX (Evernote Export File, both Markdown and HTML versions).[8]