Docmost vs Outline in 2026: Modern Team Wiki Platforms Compared

TL;DR

Both Docmost and Outline are modern, block-based team wikis that feel like Notion but run on your own infrastructure. Outline is the more mature platform — comprehensive REST API, 20+ integrations (Slack, Figma, Loom), Confluence/Notion import, and enterprise SSO/SAML. Docmost is the fast-growing newcomer — AGPL-3.0 license, built-in Draw.io diagrams, no Redis dependency (simpler stack), and active development catching up to Outline's feature set. For production team wikis needing stability and integrations: Outline. For simpler setups where AGPL license and diagram support matter: Docmost.

Key Takeaways

Docmost (AGPL-3.0, 8K+ stars) is a newer Outline alternative with built-in Draw.io + Mermaid support, no Redis required
Outline (BSL-1.1, 29K+ stars) is the established team wiki with comprehensive API, 20+ integrations, and import from Confluence/Notion
Notion Business costs $16/user/month — 10 users pays $1,920/year
Confluence Data Center pricing has increased significantly — self-hosted teams are looking for alternatives
Both run on Node.js/React/PostgreSQL with real-time collaboration
Outline's BSL-1.1 license restricts commercial hosting providers; Docmost's AGPL-3.0 allows all uses with source disclosure

Why Teams Are Looking for Confluence and Notion Alternatives

Confluence has two problems: cost and speed. Atlassian moved Confluence to cloud-only pricing for new customers, with plans starting at $6.05/user/month. For a 50-person organization, that's $3,630/year — and the product has been criticized for feeling bloated and slow compared to newer tools.

Notion is faster and more flexible but has its own lock-in risk (proprietary format) and team pricing ($16/user/month for Business features like advanced access controls and version history).

Both Docmost and Outline offer the editing experience of modern wiki tools (block-based, real-time collaboration) on infrastructure you control.

Docmost — The Lighter Alternative

Docmost launched in 2024 and grew to 8K+ stars quickly by offering a simpler, cleaner alternative to Outline. The key technical difference: Docmost doesn't require Redis (Outline requires Redis for caching and real-time). This reduces the self-hosting footprint.

# Docmost Docker Compose
services:
  docmost:
    image: docmost/docmost:latest
    restart: unless-stopped
    ports:
      - "3000:3000"
    environment:
      - APP_URL=https://wiki.yourdomain.com
      - APP_SECRET=your-app-secret-min-32-chars
      - DATABASE_URL=postgresql://docmost:password@postgres:5432/docmost
      # Optional: SMTP for email notifications
      - MAIL_DRIVER=smtp
      - SMTP_HOST=smtp.yourdomain.com
      - SMTP_PORT=587
      - SMTP_USERNAME=wiki@yourdomain.com
      - SMTP_PASSWORD=smtp-password
      - MAIL_FROM_ADDRESS=wiki@yourdomain.com
      # Optional: Object storage for attachments
      # - STORAGE_DRIVER=s3
      # - AWS_S3_BUCKET=your-bucket
      # - AWS_S3_REGION=us-east-1
    volumes:
      - docmost_data:/app/data
    depends_on:
      - postgres
  postgres:
    image: postgres:16-alpine
    restart: unless-stopped
    environment:
      POSTGRES_DB: docmost
      POSTGRES_USER: docmost
      POSTGRES_PASSWORD: password
    volumes:
      - docmost_db:/var/lib/postgresql/data
volumes:
  docmost_db:
  docmost_data:

The editing experience matches Outline closely — slash commands, rich blocks (headings, lists, code, images, tables, embeds), inline mentions (@user), and real-time collaborative editing via Yjs (the same CRDT library Outline uses).

Diagram support is Docmost's standout feature over Outline. Docmost has built-in support for both:

Draw.io / Diagrams.net: Full diagramming suite (flowcharts, sequence diagrams, ERDs, network diagrams, org charts) embedded in the page
Mermaid: Text-based diagrams defined in code blocks

This eliminates the need to create diagrams externally and attach them as screenshots. Teams documenting system architecture, API flows, database schemas, or org structures can create and edit diagrams directly in their wiki pages.

Spaces organize the wiki into separate areas — similar to Outline's Collections. Each Space can have its own members and permissions, enabling team-specific documentation alongside company-wide content.

Comments and mentions work as expected — threaded comments on documents, @user mentions that send notifications, and inline page reactions.

Key features:

Block-based collaborative editor (Yjs real-time sync)
Built-in Draw.io diagrams
Mermaid diagram support
Spaces with permission control
Nested pages (unlimited hierarchy)
Comments and @mentions
Document versioning
Markdown import/export
File attachments (local or S3)
OIDC SSO (Google, GitHub, custom OIDC)
Dark mode
AGPL-3.0 license, 8K+ stars
No Redis dependency

Limitations compared to Outline:

Less mature API (Outline's API is comprehensive; Docmost's is basic)
Fewer integrations (no Slack notifications, no Figma/Loom embeds)
No import from Confluence or Notion
No public document sharing with custom domains (in development)
Smaller community, less documentation

Outline — The Production-Ready Wiki

Outline has been in active development since 2017 and is used by teams at scale. The product is stable, well-documented, and has integrations with every tool a modern team uses.

# Outline Docker Compose
services:
  outline:
    image: outlinewiki/outline:latest
    restart: unless-stopped
    ports:
      - "3000:3000"
    environment:
      - SECRET_KEY=your-64-char-secret
      - UTILS_SECRET=your-utils-secret
      - DATABASE_URL=postgres://outline:password@postgres:5432/outline
      - REDIS_URL=redis://redis:6379
      - URL=https://wiki.yourdomain.com
      - PORT=3000
      # Storage
      - FILE_STORAGE=local
      - FILE_STORAGE_LOCAL_ROOT_DIR=/var/lib/outline/data
      # SMTP
      - SMTP_HOST=smtp.yourdomain.com
      - SMTP_PORT=587
      - SMTP_USERNAME=wiki@yourdomain.com
      - SMTP_PASSWORD=smtp-password
      - SMTP_FROM_EMAIL=wiki@yourdomain.com
      # OIDC SSO
      - OIDC_CLIENT_ID=outline
      - OIDC_CLIENT_SECRET=your-oidc-secret
      - OIDC_AUTH_URI=https://auth.yourdomain.com/auth
      - OIDC_TOKEN_URI=https://auth.yourdomain.com/token
      - OIDC_USERINFO_URI=https://auth.yourdomain.com/userinfo
    volumes:
      - outline_data:/var/lib/outline/data
    depends_on:
      - postgres
      - redis
  postgres:
    image: postgres:15-alpine
    environment:
      POSTGRES_DB: outline
      POSTGRES_USER: outline
      POSTGRES_PASSWORD: password
    volumes:
      - outline_db:/var/lib/postgresql/data
  redis:
    image: redis:7-alpine
volumes:
  outline_db:
  outline_data:

The integrations are what set Outline apart for teams already using SaaS tools:

Slack: Link unfurling (Outline links in Slack show a preview), document notifications to channels, search from Slack
GitHub: Code block syntax highlighting, automatic PR/issue link previews
Figma: Embed Figma frames directly in documents with live updates
Loom: Embed Loom video walkthroughs in documentation
Google Drive / OneDrive: Attach and preview cloud documents
Linear, Jira: Issue link previews in document text

The REST API is comprehensive — every operation available in the UI is also available via API. This enables automation: auto-generate meeting notes from your calendar, create onboarding documents for new hires, sync documentation from your codebase.

// Outline API — create a document programmatically
const response = await fetch('https://wiki.yourdomain.com/api/documents.create', {
  method: 'POST',
  headers: {
    'Authorization': `Bearer ${OUTLINE_API_KEY}`,
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    title: 'Q2 2026 Engineering Retrospective',
    text: `# Q2 Retrospective\n\n## What went well\n\n## What could improve\n\n## Action items`,
    collectionId: 'collection-engineering',
    publish: true,
  }),
});

Import from Confluence and Notion handles large migrations:

Confluence: Export space as HTML, import via Outline's import tool
Notion: Export as Markdown, import via Outline
Markdown files: Import entire directory trees

Key features:

Block-based collaborative editor (Yjs CRDT)
20+ integrations (Slack, Figma, Loom, GitHub, Google Drive)
Comprehensive REST API
Import from Confluence, Notion, and Markdown
Collections with fine-grained permissions
Full-text search with fuzzy matching
Public sharing with custom domains
OIDC, Google, Slack, and SAML SSO
Document versioning
PDF export
BSL-1.1 license, 29K+ stars

Side-by-Side Comparison

Feature	Docmost	Outline
License	AGPL-3.0	BSL-1.1
Stars	8K+	29K+
Stack	Node.js + React + PostgreSQL	Node.js + React + PostgreSQL + Redis
Redis required	❌	✅
Real-time collaboration	✅	✅
Draw.io diagrams	✅ Built-in	❌
Mermaid diagrams	✅	✅
Integrations	Limited	✅ 20+
REST API	Basic	✅ Comprehensive
Import from Confluence	❌	✅
Import from Notion	❌	✅
Public sharing	In development	✅
SAML SSO	❌	✅
OIDC SSO	✅	✅

Decision Framework

Choose Docmost if:

Diagram support (Draw.io + Mermaid) is important for documenting systems, architectures, or workflows
AGPL-3.0 is preferred over BSL-1.1 (no self-hosting restrictions)
Simpler stack matters (no Redis to manage)
You're a smaller team that will grow with the product
You're starting fresh with no Confluence/Notion data to import

Choose Outline if:

You need a production-ready platform today
Slack/Figma/Loom integrations improve team workflow
You're migrating from Confluence or Notion and need import tools
Comprehensive API is required for automation
SAML SSO or enterprise auth is needed
Public sharing of docs with custom domains is required

Cost Comparison

Solution	Annual Cost (10 users)
Notion Business	$1,920/year
Confluence Cloud	$726/year
Outline self-hosted	$60–120/year
Docmost self-hosted	$60–100/year (lighter stack)

Building a Knowledge Base People Actually Use

Deploying the documentation platform is the easy part. Building a knowledge base that your team actively maintains and consults is the harder problem — and it's primarily a structural and behavioral challenge, not a technical one.

Start with anchors, not a complete taxonomy. The instinct when setting up a new wiki is to design the complete information architecture upfront: create all the collections, define all the nested structures, establish a place for everything before writing anything. This produces a beautiful empty framework that quickly becomes a graveyard of well-intended but unused pages. Instead, start with three to five anchor documents that your team will actually need this week: a getting-started guide for new team members, a runbook for your most common operational task, and meeting notes from your current sprint. Let the structure emerge from real usage rather than imposing it upfront.

Naming conventions and findability. The most common reason knowledge bases become unused: people can't find what they're looking for and stop trusting the search. Establish consistent naming conventions for documents — specific is better than general. "Setup Guide" is unfindable; "Local Development Environment Setup — Mac/Linux" is specific enough to appear in search results for the relevant query. Both Docmost and Outline have full-text search; the search quality depends on whether documents have titles and content that match the queries your team actually runs.

Ownership and review cadence. Documentation becomes stale when no one owns keeping it current. Assign an owner to each major document category — not for writing everything, but for noticing when content is outdated and either updating it or flagging it for deletion. A quarterly documentation review (30 minutes per owner, reviewing their assigned documents) prevents the accumulation of outdated content that erodes trust in the knowledge base.

Progressive enrichment over perfection. Teams that try to write complete, polished documentation before publishing rarely finish. Teams that publish rough drafts and improve them iteratively end up with much better coverage. Use Outline's draft feature or Docmost's private editing to work on documents without publishing them — but set a deadline to publish, even incomplete. A published document at 70% completeness is more valuable than an unpublished draft at 90% completeness, because it can be improved by anyone who finds it lacking.

External contributor access. Outline supports guest access (read-only access for external collaborators without a full account) — useful for agencies, contractors, or customers who need to view specific documentation without having write access to your full wiki. Docmost's access model is primarily internal-team-focused, with sharing via public link for specific documents. If your use case involves regularly sharing documentation with external parties who need more than a read-only link (they need to navigate your document structure, search across documents), Outline's guest access model is the right fit. For purely internal knowledge bases, both tools handle access equivalently.

Search as the primary navigation. Most users of internal knowledge bases find content through search rather than navigation. This means the quality of your documentation's search results matters more than the quality of your information architecture. Both Docmost and Outline have full-text search, but the precision of results depends on how documents are written. Front-load the key terms in document titles and first paragraphs — a document titled "Deploying to Production" that opens with a paragraph about deployment context will surface in more relevant search results than one that buries the main topic in section three.

Documentation as a meeting alternative. The highest-leverage documentation is the kind that reduces the need for repetitive meetings and Slack questions. If the same question gets asked in Slack three times in a month, that question needs a documentation answer. Assign someone to answer the question with a link to the wiki rather than a direct answer in Slack — this trains the team to check the wiki first and gradually reduces the "where do I find X?" overhead that consumes disproportionate time in growing teams.

See open source alternatives to Docmost on OSSAlt.

Docmost vs Outline in 2026: Which Team Wiki Platform?