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Joplin
MITJoplin is an open-source, encrypted note-taking app that replaces Evernote with offline-first Markdown, terminal CLI access, and flexible self-hosted sync.
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Overview
An infrastructure engineer managing incident runbooks and credentials needs portable notes across desktop, mobile, and remote terminal sessions without storing plaintext in a proprietary cloud. Joplin stores notes locally in SQLite, renders content in standard Markdown, and enforces client-side end-to-end encryption before synchronizing with any remote backend.
Why Joplin instead of Evernote
Evernote popularized notebook-and-tag organization, but its proprietary cloud architecture stores unencrypted user notes on vendor servers and restricts unpaid accounts to fifty notes. Joplin preserves that hierarchical structure with notebooks, subnotebooks, and tags while returning operational control to the user. Its importer ingests Evernote .enex archives directly, converting formatted notes to standard Markdown while retaining attachments, tags, and timestamps without a subscription paywall.
The crucial difference lies in data control and encryption. Where Evernote maintains server-side access to note contents, Joplin applies zero-knowledge AES-256 encryption on the client before payloads leave the device. Users choose their own synchronization target, including self-hosted Nextcloud instances, private WebDAV servers, AWS S3 buckets, or commercial providers like Dropbox. Joplin sacrifices Evernote's collaborative real-time note editing and proprietary handwriting recognition in exchange for verifiable data sovereignty.
What it does well
- Interactive and headless terminal clients: An ncurses terminal interface with Vim navigation allows fast note editing over SSH, with CLI commands to script search, export, and synchronization.
- Local REST data API: A built-in localhost HTTP service lets shell hooks, monitoring scripts, and external tools create, search, and manage notes programmatically.
- Zero-knowledge end-to-end encryption: Client-held keys ensure note text, metadata, and attachments remain unreadable to intermediate storage servers and cloud hosts.
- Flexible synchronization backends: Native drivers sync to Nextcloud, WebDAV, AWS S3, network filesystems, OneDrive, Dropbox, or the official self-hosted Joplin Server.
- Extensible Markdown editing: Supports CommonMark with live previews, mathematical notation via KaTeX, Mermaid diagrams, and syntax highlighting across common programming languages.
