Joplin

TAS Score: S3/3 — D4/5 · A3 / T2 (D4 not D5: Joplin Cloud exists as a paid sync option — commercial focus growing alongside self-hosted.)

Brief Description

Open-source note-taking app with end-to-end encryption. Supports Markdown, notebooks, tags, attachments. Sync via self-hosted Joplin Server, Nextcloud, WebDAV, or local filesystem. Available on all platforms.

Architectural Role

Applications layer. Personal knowledge management and note-taking. Can run fully local without any server — sync is optional. Self-hosted Joplin Server adds multi-user sharing.

Technical Autonomy

Works without internet
Stores data locally
Does not require external accounts
Allows data export (JEX, Markdown, PDF, HTML)
Provides offline updates

Philosophical Assessment (whose.world criteria)

Criterion	Status	Comments
Pause	✅	Local app — no server required for basic use
Exit	✅	Full export to JEX, Markdown, or raw files
Recoverability	✅	Notes stored as files; standard backup applies
Visibility	✅	AGPL-3.0, fully auditable
External Dependencies	✅	Works fully offline; sync is optional

Configuration (Minimal)

services:
  joplin-db:
    image: postgres:16
    environment:
      POSTGRES_DB: joplin
      POSTGRES_USER: joplin
      POSTGRES_PASSWORD: changeme
    volumes:
      - joplin_db:/var/lib/postgresql/data

  joplin:
    image: joplin/server:latest
    depends_on: [joplin-db]
    environment:
      APP_PORT: 22300
      APP_BASE_URL: https://joplin.yourdomain.com
      DB_CLIENT: pg
      POSTGRES_HOST: joplin-db
      POSTGRES_DATABASE: joplin
      POSTGRES_USER: joplin
      POSTGRES_PASSWORD: changeme
    ports:
      - "22300:22300"

volumes:
  joplin_db:

Alternatives

Alternative	Autonomy	Notes
Logseq	A3 / T2	Graph-based, local-first, no server needed
Obsidian	A2 / T0	Proprietary app, local files

Trajectory

Direction: stable

Joplin has been AGPL-3.0 since launch. Joplin Cloud launched as an optional paid sync service — it does not affect self-hosted functionality. The app works completely without any server. Core development has been consistent for 7+ years. Main risk: single primary maintainer.

Signal assessment:

Signal	Status	Evidence
License	✅	AGPL-3.0 since launch; no changes
Feature gating	➖	Joplin Cloud is optional; no local features gated
Self-hosting	✅	Self-hosted server actively maintained; sync alternatives supported
Governance	➖	Single primary maintainer (laurent22); large community; no foundation

Sources

Website: https://joplinapp.org
Documentation: https://joplinapp.org/help/apps/sync
Repository: https://github.com/laurent22/joplin
Docker image: joplin/server
Community: https://discourse.joplinapp.org