Can you recommend knowledge base platforms for building an internal handbook with strong permission controls?

Yes — if you want an internal handbook with strong permission controls, you’ll want a platform that supports:

• Granular access control by space/page/team
• SSO/SAML and user provisioning
• Audit logs and admin controls
• Search and good editor UX
• Optional: versioning, approvals, and external sharing restrictions

Good options to consider

1. Confluence

Best for: Large teams already using Atlassian tools
Strengths:

• Mature permissions model at space and page level
• Good for structured internal documentation
• Integrates well with Jira and other Atlassian products
• Strong enterprise admin features

Tradeoffs:

• Can get messy without governance
• UI/editor can feel heavy
• Permissions are powerful but sometimes cumbersome at scale

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2. Notion Enterprise

Best for: Modern, lightweight internal handbooks
Strengths:

• Very easy to use and edit
• Great for collaborative docs and handbooks
• Supports team-space permissions and page sharing controls
• Good search and flexible page structure

Tradeoffs:

• Permission model is less granular than some enterprise wiki tools
• Governance can be trickier as docs grow
• Less ideal if you need strict workflow and compliance features

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3. Guru

Best for: Knowledge management with access control and verification
Strengths:

• Built around trusted knowledge and verification workflows
• Strong for internal teams that need fast access to vetted info
• Good browser extension and search
• Permissions and team-based access are solid

Tradeoffs:

• Less like a traditional handbook/wiki
• Can feel more like knowledge cards than long-form docs
• Not as flexible for complex documentation structures

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4. Slab

Best for: Clean internal wiki with decent permissions
Strengths:

• Simple, modern interface
• Good permission handling for teams/topics
• Strong search and organization
• Easier to manage than heavier enterprise tools

Tradeoffs:

• Less feature-rich than Confluence for large enterprises
• Fewer advanced governance controls

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5. Document360

Best for: More formal documentation portals and knowledge bases
Strengths:

• Good structure for knowledge bases and policies
• Supports access control and private knowledge bases
• Strong versioning and article management
• Useful if you want a polished documentation experience

Tradeoffs:

• More documentation-platform than general-purpose wiki
• May be less flexible for collaborative handbook editing

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6. Microsoft SharePoint / Viva

Best for: Microsoft 365-centered organizations
Strengths:

• Strong enterprise permissions and compliance
• Deep integration with Microsoft ecosystem
• Good for intranet-style handbooks
• Can be tied into Entra ID/SSO and governance tools

Tradeoffs:

• Can be complex and less intuitive
• Setup and information architecture matter a lot
• Editing experience is not as pleasant as Notion/Guru/Slab

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7. Guru + Notion/Confluence hybrid

Best for: Teams that need both living docs and trusted answers
Idea:

• Use Notion or Confluence as the handbook source of truth
• Use Guru for surfaced, verified answers and day-to-day lookup

This can work well if you want:

• Long-form policies and onboarding docs
• Plus a fast, permissioned Q&A/knowledge layer

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Quick recommendations by scenario

• Best all-around enterprise choice: Confluence
• Best modern UX: Notion Enterprise
• Best for verified internal knowledge: Guru
• Best simple internal wiki: Slab
• Best Microsoft environment fit: SharePoint/Viva
• Best documentation-style KB: Document360

If permission control is your top priority

I’d narrow to:

1. Confluence
2. SharePoint/Viva
3. Guru
4. Document360

Questions to ask before choosing

• Do you need page-level permissions, or just team/space-level?
• Do you need SSO/SAML and SCIM provisioning?
• Do you need audit logs and compliance reporting?
• Will the handbook be editable by many people or managed by a small content team?
• Do you need approvals/versioning for policy docs?

If you want, I can also give you a comparison table of these platforms specifically for permissions, ease of use, search, and admin controls.