Alternatives · Docs & Wikis

Outline alternatives

Outline compared with 12 alternatives: Confluence, Notion, Slab, Nuclino, BookStack and 7 more.

Outline has a free plan. Paid plans start at $10 per month for a team of 1 to 10 members (cloud-hosted). 11 of the 12 alternatives are free or have a free plan. One more offers a free trial.

12 tools · Listings checked up to Oct 9, 2026 · Where the facts come from

At a glance

Tool	Price	Free plan	Runs on
OutlineThis tool	Free plan · from $10/mo	Yes	Web, macOS, Windows
Confluence	Free plan · from $6.70/mo	Yes	Web, iOS, Android
Notion	Free plan · from $10/mo	Yes	Web, macOS, Windows, iOS, Android, Browser extension
Slab	Free plan · from $6.67/mo	Yes	Web, macOS, Windows, Browser extension
Nuclino	Free plan · from $6/mo	Yes	Web, macOS, Windows, Linux, iOS, Android
BookStack	Free plan · from £450/yr	Yes	Web
Docmost	Free plan · from $6/mo	Yes	Web
Documize	Free plan · from $900/yr	Yes	Web
GitBook	Free plan · from $65/mo	Yes	Web
Gramax	Free plan · from $20/mo	Yes	Web, macOS, Windows, Linux
HackMD	Free plan · from $4/mo	Yes	Web, Browser extension
HedgeDoc	Free	Free	Web
Hudu	Free trial · from $27/mo	Trial only	Web, iOS, Android, Browser extension

How each one differs from Outline

Confluence
Team wiki and docs workspace from Atlassian, tied to Jira
Free plan · from $6.70/mo
- Confluence starts at $6.70 per user / month, billed monthly (first 100 users). Outline starts at $10 per month for a team of 1 to 10 members (cloud-hosted).
- Only Confluence lists iOS and Android apps.
- Only Outline lists macOS and Windows apps.
- Outline is open source and self-hostable, according to its own site.
- Confluence also covers databases, whiteboard, templates and documents.
Suits: Teams that run Jira and want documentation linked to their issues
Confluence vs Outline Confluence pricing and details
Notion
Workspace for docs, wikis, databases and projects with built-in AI
Free plan · from $10/mo
- Notion starts at $10 per member / month, billed yearly. Outline starts at $10 per month for a team of 1 to 10 members (cloud-hosted).
- Only Notion lists iOS and Android apps.
- Only Notion lists a browser extension.
- Outline is open source and self-hostable, according to its own site.
- Notion also covers notes, databases and templates.
Suits: Teams that want docs, a wiki and project tracking in one workspace
Notion vs Outline Notion pricing and details
Slab
Knowledge base and team wiki with search across connected tools
Free plan · from $6.67/mo
- Slab starts at $6.67 per user / month, billed annually ($8 billed monthly). Outline starts at $10 per month for a team of 1 to 10 members (cloud-hosted).
- Only Slab lists a browser extension.
- Outline is open source and self-hostable, according to its own site.
- Slab also covers templates and documents.
- Outline also covers Markdown.
Suits: Teams of up to 10 that want a free internal wiki
Slab vs Outline Slab pricing and details
Nuclino
Lightweight team wiki with docs, boards and whiteboards
Free plan · from $6/mo
- Nuclino starts at $6 per user / month, billed yearly ($8 billed monthly). Outline starts at $10 per month for a team of 1 to 10 members (cloud-hosted).
- Only Nuclino lists Linux, iOS and Android apps.
- Outline is open source and self-hostable, according to its own site.
- Nuclino also covers whiteboard, kanban boards and documents.
- Outline also covers AI search and Markdown.
Suits: Small teams that want a simple wiki with little setup
Nuclino vs Outline Nuclino pricing and details
BookStack
Free self-hosted wiki organized into books, chapters and pages
Free plan · from £450/yr
- BookStack starts at £450 per year for an optional support plan; the software itself is free. Outline starts at $10 per month for a team of 1 to 10 members (cloud-hosted).
- Only Outline lists macOS and Windows apps.
- BookStack also covers templates and diagrams.
- Outline also covers AI search.
Suits: Teams that want a free wiki running on their own server
BookStack vs Outline BookStack pricing and details
Docmost
Open-source collaborative wiki you deploy on your own servers
Free plan · from $6/mo
- Docmost starts at $6 per seat / month, billed annually (Business, 10-seat minimum). Outline starts at $10 per month for a team of 1 to 10 members (cloud-hosted).
- Only Outline lists macOS and Windows apps.
- Docmost also covers databases and diagrams.
- Outline also covers Markdown.
Suits: Organizations that must keep documentation on their own servers
Docmost vs Outline Docmost pricing and details
Documize
Self-hosted knowledge base with approvals and analytics
Free plan · from $900/yr
- Documize starts at $900 per year for up to 100 users. Outline starts at $10 per month for a team of 1 to 10 members (cloud-hosted).
- Only Outline lists macOS and Windows apps.
- Documize also covers templates, documents and reports.
- Outline also covers AI search and Markdown.
Suits: Organizations that must keep documentation on their own or air-gapped servers
Documize vs Outline Documize pricing and details
GitBook
Documentation platform for product and API docs, synced with Git
Free plan · from $65/mo
- GitBook starts at $65 per site / month, billed annually, plus $12 per user / month. Outline starts at $10 per month for a team of 1 to 10 members (cloud-hosted).
- Only Outline lists macOS and Windows apps.
- Outline is open source and self-hostable, according to its own site.
- GitBook also covers AI agents and documents.
- Outline also covers wiki.
Suits: Public product and API documentation for software companies
GitBook vs Outline GitBook pricing and details
Gramax
Open-source knowledge base that stores Markdown in Git
Free plan · from $20/mo
- Gramax starts at $20 per Editor license / month, minimum 10 licenses (Enterprise Server). Outline starts at $10 per month for a team of 1 to 10 members (cloud-hosted).
- Only Gramax lists a Linux app.
- Gramax also covers diagrams.
Suits: Teams that want documentation kept as Markdown files in their own Git repository
Gramax vs Outline Gramax pricing and details
HackMD
Real-time collaborative Markdown editor and knowledge base
Free plan · from $4/mo
- HackMD starts at $4 per month, billed yearly (Prime for a personal workspace). Outline starts at $10 per month for a team of 1 to 10 members (cloud-hosted).
- Only HackMD lists a browser extension.
- Only Outline lists macOS and Windows apps.
- Outline is open source and self-hostable, according to its own site.
- HackMD also covers notes, templates and presentations.
Suits: Developer teams that write documentation in Markdown
HackMD vs Outline HackMD pricing and details
HedgeDoc
Open-source, self-hosted collaborative Markdown editor
Free
- HedgeDoc is free. Outline starts at $10 per month for a team of 1 to 10 members (cloud-hosted).
- Only Outline lists macOS and Windows apps.
- HedgeDoc also covers notes, diagrams and presentations.
- Outline also covers AI search and wiki.
Suits: Teams that write in Markdown and keep notes on their own server
HedgeDoc vs Outline HedgeDoc pricing and details
Hudu
IT documentation platform with a password vault and asset tracking
Free trial · from $27/mo
- Hudu starts at $27 per user / month, billed annually ($30 billed monthly). Outline starts at $10 per month for a team of 1 to 10 members (cloud-hosted).
- Outline has a free plan. Hudu does not, though it has a free trial.
- Only Hudu lists iOS and Android apps.
- Only Hudu lists a browser extension.
- Only Outline lists macOS and Windows apps.
Suits: Managed service providers documenting many client environments
Hudu vs Outline Hudu pricing and details

Limits worth knowing in Outline

The cloud version has no free plan: after the 30-day trial the workspace is read-only until a payment method is added.
Cloud pricing goes by team-size tier, so an 11th member moves a team from $10 to $79 a month, and teams over 200 need a quote.
The free Community Edition lacks AI answers, guest users, SAML 2.0 and the audit log; paid self-hosted licenses need at least 10 users.
The download page offers desktop apps for macOS and Windows only; no mobile apps are listed.

Outline pricing and details

Common questions

What are the alternatives to Outline?

The alternatives to Outline in this directory are Confluence, Notion, Slab, Nuclino, BookStack, Docmost, Documize, GitBook, Gramax, HackMD, HedgeDoc and Hudu. Each one has a side-by-side comparison with Outline.

Is there a free alternative to Outline?

Yes. HedgeDoc is free to use. Confluence, Notion, Slab, Nuclino, BookStack, Docmost, Documize, GitBook, Gramax and HackMD have a free plan alongside paid ones.

Which Outline alternatives work on Linux?

The Outline listing does not include a Linux app. Nuclino and Gramax list one.

Which Outline alternatives work on Android?

The Outline listing does not include an Android app. Confluence, Notion, Nuclino and Hudu list one.

When were these prices checked?

Each listing shows its own date. On this page they run from Oct 4, 2026 to Oct 9, 2026. Vendors change prices without notice, so confirm on their site before you buy.