Quick Verdict
Docmost is the better choice for most self-hosters because it's simpler to deploy — built-in email/password auth means no external OIDC provider needed. Outline is better if you already have SSO infrastructure and want a more mature, battle-tested platform. Both deliver Notion-like editing with real-time collaboration.
Overview
Docmost and Outline are both team knowledge bases that position themselves as self-hosted Notion/Confluence alternatives. Both feature block-based editors with slash commands, real-time collaboration, and nested document hierarchies.
The key architectural difference: Outline requires an external authentication provider (OIDC, Google, Slack, or Azure). Docmost includes built-in email/password authentication. This single difference dramatically changes the deployment experience.
Feature Comparison
| Feature | Docmost | Outline |
|---|---|---|
| Editor | Block-based, slash commands | Block-based, slash commands |
| Real-time collab | Yes | Yes |
| Authentication | Built-in email/password | External OIDC required |
| Organization | Workspaces → Spaces → Pages | Team → Collections → Documents |
| Permissions | Space-level + page-level | Collection-level + document-level |
| API | REST API | REST API |
| S3 storage | Optional | Optional |
| Search | Full-text | Full-text |
| Comments | Inline comments | Inline comments |
| Templates | Yes | Yes |
| Docker services | 3 (app + PostgreSQL + Redis) | 3 (app + PostgreSQL + Redis) |
| RAM usage | ~600 MB total | ~600 MB total |
| License | AGPL-3.0 | BSL 1.1 |
| Maturity | v0.25.x (pre-1.0) | v0.82.x (mature) |
| Hosted version | No | Yes (getoutline.com) |
Installation Complexity
Docmost deploys with three containers and a .env file. Set APP_URL, generate APP_SECRET, configure database credentials, and you're running. First user registers through the web UI. No external services needed beyond what's in the compose file.
Outline also deploys three containers, but additionally requires an external OIDC provider. You either need to run Keycloak, Authentik, or Authelia, or configure Google/Slack/Azure OAuth. Secrets must be 64 hex characters. The URL env var must exactly match the access URL or OIDC redirects break.
Docmost's deployment takes 10–15 minutes. Outline's takes 30–60 minutes including OIDC setup (or longer if you're deploying an identity provider from scratch).
Performance and Resource Usage
Nearly identical. Both run Node.js applications with PostgreSQL and Redis backends. Both consume approximately 600 MB total. Neither is resource-intensive for modern hardware.
Community and Support
Outline has a larger community, longer track record, and more mature codebase. It's backed by a company that operates a hosted version, which funds ongoing development. Documentation is good though focused on the hosted product.
Docmost is newer (first commit 2024) with a smaller but growing community. Development is active with frequent releases. Documentation is adequate for deployment but thinner on advanced configuration.
Use Cases
Choose Docmost If...
- You want the simplest deployment path
- You don't have (or want) an OIDC provider
- AGPL-3.0 licensing works for your organization
- You're comfortable with pre-1.0 software
- You want workspaces for multi-tenant organization
Choose Outline If...
- You already run an OIDC provider
- You need a more mature, battle-tested platform
- You want the option to migrate to hosted if self-hosting becomes burdensome
- You need the larger plugin and integration ecosystem
- API stability matters for your workflows
Final Verdict
For new self-hosted wiki deployments without existing SSO infrastructure, Docmost is the pragmatic choice. The built-in authentication eliminates the most painful part of Outline's setup. The editing experience is comparable.
For organizations with existing OIDC infrastructure (Keycloak, Authentik, Okta), Outline's maturity and track record make it the safer choice. Its larger community means more help when things break.
Both are strong options. Docmost is where the momentum is in early 2026; Outline is where the stability is.
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