# Slab — Knowledge Base & Wiki

Slab by Fallacy Labs, Inc. holds a panel rating of 3/5 from 6 AI judges (category median 3/5), as of 2026-11-01. Provenance: Rest of world; sovereignty: not determined.

- Vendor: Fallacy Labs, Inc. (https://slab.com)
- Category: [Knowledge Base & Wiki](https://whats-best.ai/software/knowledge-base.md)
- Provenance (editorial classification): Rest of world
- Canonical page: https://whats-best.ai/software/knowledge-base/slab
- Alternatives: https://whats-best.ai/software/knowledge-base/slab/alternatives ([markdown](https://whats-best.ai/software/knowledge-base/slab/alternatives.md))
- Data as of: 2026-11-06 · evaluated 2026-11-01 · oldest source captured 2026-11-01

**AI-generated.** Every score, rationale and verdict here is written by a panel of AI judges from public evidence — an analysis, not a hands-on test. Every fact quotes the vendor page it was read from. No score can be bought. How scores are made: https://whats-best.ai/methodology

## At a glance

- Vendor: Fallacy Labs, Inc.
- Headquarters: Not stated on the vendor’s pages as of 1 Nov 2026
- Data hosting: Not stated on the vendor’s pages as of 1 Nov 2026
- Free plan: Yes, per the vendor’s own page [S1]

## The panel's verdict

Slab, a hosted team wiki from Fallacy Labs, Inc., is scored strongest at internal knowledge work: authoring and search, knowledge governance and access control. Search is the documented strength — relevance ranked by reads, views, links and mentions, facets for verified and expired posts, unified search across tools such as Google Drive, Confluence, Jira and Slack — and verification is a real loop, with the post owner as default primary verifier, configurable review frequency and reminders in-app, by email and on Slack. The weakest mark is sovereignty: the privacy policy states data is transferred to and processed in the United States on Google Cloud Platform with no region stated, and we found no published subprocessor list beyond Stripe for billing. Publishing and integrations and portability and hosting trail on API plan-gating and export gaps; pricing transparency is enough to ballpark, not to compute a contract. The flagged splits report none; score spreads stay within two points.

**Speaks for it:**
- Search ranks results by reads, views, links and mentions, with facets for verified, expired and archived posts and unified search across named tools such as Google Drive, Confluence, Jira and Slack
- Verification is documented end to end: the post owner is the default primary verifier, review frequency is configurable, reminders arrive in-app with optional email and Slack, and a banner names the verifier and expiry
- Access control is documented at both post and topic levels — editor and viewer permissions, additive topic access, guests limited to their topics, SAML-based single sign-on, SCIM provisioning, admin-enforced two-factor and IP restriction
- Published prices are concrete — Free at $0 user / month for up to 10 users, Startup at $6.67 user / month billed annually, Business at $12.50 user / month billed annually — with per-tier limits on attachment size, version history, analytics retention and support level
- Admins can bulk-export all published posts and topics to Markdown or Docx, and the terms confirm customers keep ownership of their content

**Held against it:**
- Sovereignty scored lowest: the contracting entity is Fallacy Labs, Inc. under California law, data is transferred to and processed in the United States on Google Cloud Platform, and we found no public information on an EU hosting option
- The bulk export excludes drafts and secret topics the exporting admin does not belong to, and we found no public information on attachments or version history being included
- The API and webhooks are reserved for the Business and Enterprise plans, and the documented outward publishing is public post links plus a custom-domains module, with no public information on a branded help center, ticket deflection or a connector for AI assistants
- The audit log defaults to 30 days of retention, and its published action types cover authentication, user, admin and content actions such as deletions rather than content edits and approvals
- Billing counts every user who can log in — the vendor states there is no account type that cannot edit — and the AI modules carry an "Advanced" label with no published price while Enterprise is "Custom, contact sales@slab.com"

**Best for:**
- You run an internal team wiki whose pages must stay current — the verification loop, expiry banners and admin insights into stale posts and unanswered questions scored 6-7 for knowledge governance
- You want one search surface across tools your team already uses, including Google Drive, Confluence, Jira and Slack, with Slab content searchable from inside Slack
- You need documented enterprise access controls — SAML-based single sign-on, SCIM provisioning, admin-enforced two-factor and IP restriction — for a security-led rollout, where access control scores run 6-8
- You are starting small or in education or non-profit use: the Free tier covers up to 10 users and the Startup plan is free for non-profits and educational use

**Avoid if:**
- Your compliance regime requires EU data residency, self-hosting or a named subprocessor chain — ask the vendor: the public pages we read do not show it
- Your user base is heavy on people who only need to read: billing counts every user who can log in and the vendor states there is no account type that cannot edit
- You must be able to leave with everything intact: the bulk export covers published posts and topics, excludes drafts and secret topics the exporting admin is not a member of, and the terms make export before termination the customer's responsibility
- You need audit-grade change history for controlled documents: the audit log defaults to 30 days of retention and its published action types list deletions rather than content edits and approvals

## Scores by judge and criterion

Scores out of 5, each judge scoring independently against the published rubric (v1). "n/r" = not rated: the vendor publishes no price, or the judge found no public information on that criterion.

| Criterion | The Operations Lead | The IT Administrator | The Support Knowledge Manager | The Engineering Lead | The Quality Manager | The Skeptic |
| --- | --- | --- | --- | --- | --- | --- |
| Editor, structure & search | 3.5/5 | 3/5 | 3.5/5 | 3.5/5 | 3.5/5 | 3.5/5 |
| Verification, ownership & freshness | 3.5/5 | 3/5 | 3.5/5 | 3.5/5 | 3/5 | 3.5/5 |
| Permissions, SSO & administration | 3.5/5 | 3/5 | 3.5/5 | 4/5 | 3.5/5 | 3.5/5 |
| Help-center publishing & integrations | 2/5 | 2.5/5 | 2.5/5 | 3/5 | 3/5 | 3/5 |
| Import, export & self-hosting | 2/5 | 2/5 | 2/5 | 2.5/5 | 2/5 | 2.5/5 |
| European sovereignty | 1.5/5 | 1.5/5 | 1.5/5 | 1.5/5 | 1.5/5 | 1.5/5 |
| Pricing transparency | 3/5 | 2.5/5 | 3/5 | 3/5 | 2.5/5 | 2.5/5 |
| **Weighted verdict** | **3/5** | **2.5/5** | **3/5** | **3/5** | **3/5** | **2.5/5** |

### The judges

- **The Operations Lead** (v1.0): Head of operations at a 180-person machine builder in Baden-Württemberg, where onboarding, travel rules and the service hotline's answers live in a shared drive, three OneNote books and two colleagues' heads. Wants one place the whole company actually uses: an editor office staff manage without training, a search that finds the answer rather than the file, pages that name who keeps them current, and a price that does not double when the workshop gets read access.
- **The IT Administrator** (v1.0): Runs IT for a public utility with 900 staff whose Confluence Server held twelve years of pages until Atlassian ended its support. Was offered the cloud, read the subprocessor list and went looking instead. Needs a migration that keeps page trees, permissions and attachments, single sign-on against Entra ID with groups synced, an audit log the auditor accepts, and an edition they can run in the utility's own data centre if the works council or the regulator asks.
- **The Support Knowledge Manager** (v1.0): Owns the knowledge base of a Dutch SaaS company with customers in six languages and a support team of twenty-five. Writes once for agents and customers, publishes the public part as a help center on the company's own domain, and watches which searches find nothing. Wants review dates that nag the right expert, translations kept in step with the source, a widget inside the product, and articles that show up in the help desk next to the ticket.
- **The Engineering Lead** (v1.0): Leads a forty-person engineering team at a Berlin fintech that writes runbooks, architecture decisions and on-call guides. Writes in Markdown, links pages to Jira tickets and Slack threads, and has moved the team's docs twice. Wants fast search, code blocks and diagrams that render, an API and webhooks to generate pages from the pipeline, AI answers that cite their pages, and a full export the next tool can read.
- **The Quality Manager** (v1.0): Quality manager at a medical device supplier certified to ISO 9001 and ISO 13485, where every work instruction must be approved, versioned and read by the people it applies to. Today that means Word files, a sign-off sheet and an audit every spring. Wants approval workflows with named reviewers, read confirmations, review dates that expire pages, an audit trail they can export for the certifier, and permissions that keep drafts out of sight.
- **The Skeptic** (v1.0): Has migrated a wiki whose "export" turned out to be one PDF per page, watched a self-hosted edition announced as retired with two years' notice, and read "your data is never used for training" above a subprocessor list naming two AI providers. Asks what a full export contains, which model reads the pages and where, whether readers are billed like editors — and what leaving would cost.

## European sovereignty — proven facts

Built only from facts on the vendor's own pages; a dimension we could not prove is left open, never scored as zero. Headline: not determined.

| Dimension | Finding | Points | Source |
|---|---|---|---|
| Legal entity | Not determined | — | — |
| Hosting location | Not determined | — | — |
| Hosting options | Not determined | — | — |
| Open source | Not determined | — | — |
| Data processing agreement | Not determined | — | — |
| Transfer impact assessment | Not determined | — | — |

## Key facts

Each fact is the vendor's own statement, cited to the source page it was read from ([S*n*] → Sources).

**Compliance**
- Children under 13: 13 · no [S7]
- Controller EU: yes [S7]
- DPA third parties: yes [S7]
- Eea transfer scc: standard contractual clauses or EC-recognized safeguards [S7]
- GDPR: yes [S5]
- Hosting certifications: Google Cloud Platform · SOC 2 · ISO 27001 [S5]
- Security page: Security page exists in footer [S1]
- SOC 2 type2: yes [S5]
- Soc3: yes · yes [S5]

**Data**
- Bulk admin export: secret topics not a member of · drafts · published posts · topics · yes · yes [S18]
- Bulk export formats: Markdown · Docx [S18]
- Cookies session required: yes [S7]
- Deletion: Deleted user content may be irretrievable [S8]
- Deletion caveat: no [S7]
- Do not track: no [S7]
- Export: User responsible for exporting content before termination; Slab endeavors to allow retrieval if Slab terminates [S8]
- Export delivery: several minutes [S18]
- GDPR rights: yes · yes · yes · yes [S7]
- Individual post export: Individual posts can be exported via the … menu in a chosen file format [S18]
- Ownership: yes [S8]
- Retention: as long as account is active plus reasonable period [S7]
- User content license: Worldwide, royalty-free, non-exclusive license to User Content limited to providing the Services and Privacy Policy purposes [S8]

**Hosting**
- Data transfer US: United States · no [S7]
- Provider: Google Cloud Platform [S5]

**Integrations**
- API: GraphQL API available [S4]
- Chrome extension: yes [S16]
- Count: dozens of applications [S2]
- Desktop app: yes [S16]
- Developer docs: API · Webhooks [S15]
- Github: GitHub · live markdown file sync · inline issue preview [S2]
- Google workspace: Google Workspace · SSO · Drive sync · Docs/Sheets/Slides embed [S2]
- Help articles: 57 [S6]
- Import export articles: 10 [S6]
- Individual unified search: Asana · Box · Confluence · Dropbox · Google Drive · Jira · Slack · Trello [S10]
- Listed: Google, Slack, GitHub, Asana, Okta, More [S8]
- Named: Google · Slack · GitHub · Asana · Okta [S1]
- Named: Google · Slack · GitHub · Asana · Okta [S4]
- Named: Google · Slack · GitHub · Asana · Okta [S7]
- Request integration: yes [S3]
- Slack: Slack · yes [S2]
- Slack: Slack integration: syncs documentation and communication workflows [S16]
- Slack notification settings: Slack notifications configured under Settings → Notifications after admin installs integration [S16]
- Slack search: Slab content searchable from within Slack and Slack searchable from Slab [S16]
- Standard: 10 · unlimited · unlimited · unlimited [S4]
- Team unified search: Dropbox · Height · GitHub · Google Drive · Guru · Linear · Quip · Slack · Zendesk [S10]
- Tiers: All · Standard · Premium [S3]
- Tools: Integrates with spreadsheets, slide decks, flowcharts, task managers, and more [S1]
- Webhooks: yes [S4]

**Legal**
- Dmca agent: DMCA copyright agent at Slab, Inc., 440 North Barranca Ave #8017, Covina, CA 91723, support@slab.com [S8]
- Dmca policy: Responds expeditiously to DMCA copyright infringement claims [S8]
- Entity: Slab Inc. [S1]
- Entity: Slab Inc. [S4]
- Entity: Fallacy Labs, Inc. (doing business as Slab) [S7]
- Governing law: State of California [S8]
- Privacy change notice: 30 [S7]
- Privacy updated: 2023-10-12 [S7]
- Terms last updated: 2023-10-12 [S8]
- Warranty disclaimer: Services provided as-is; all implied warranties disclaimed [S8]

**Pricing**
- API plan requirement: Business · Enterprise [S15]
- Attachment limits: 10MB · 25MB · 100MB · custom [S4]
- Audit logs plans: Business · Enterprise [S14]
- Billing users counted: billed per user who can log in; admins may deactivate users [S4]
- Business price: Business · USD · 12.5 [S4]
- Enterprise price: Custom, contact sales@slab.com [S4]
- Free price: Free · USD · 0 [S4]
- Free tier: yes · 10 [S1]
- Free tier: free forever, no credit card [S4]
- Free tier: subject to usage limits; excess usage may require paid fees · yes [S8]
- Money back guarantee: 30 · yes [S4]
- Nonprofit discount: Startup · yes [S4]
- Payment methods: all major credit cards · yes [S8]
- Price changes: yes [S8]
- Refunds: no [S8]
- Startup price: Startup · USD · 6.67 [S4]
- User limits: up to 10 · unlimited · unlimited · at least 100 [S4]
- Version history: 90 days · 365 days · unlimited · unlimited [S4]

**Product**
- Admin articles: 16 [S6]
- Admin controls: yes · yes · yes [S5]
- Admin insights: yes [S2]
- Advanced: Private Topics · Custom Domains · Usage Analytics [S4]
- AI capabilities: labeled Advanced · AI Autofix · AI Predict · AI Ask [S4]
- API type: GraphQL · Slab Bot user permissions [S15]
- API webhooks: Slab offers an API and webhooks for custom tools and automation [S15]
- Archive via post menu: yes [S12]
- Archived posts searchable: yes [S12]
- Archived search facet: is:archived [S12]
- Article date: June 25, 2024 [S15]
- Audit log action types: Authentication · User · Admin · Content [S14]
- Audit log admin actions: Integration install · Integration update · Integration remove · Content mass export [S14]
- Audit log authentication actions: Password login success · Password login failure · SSO login success · Magic link login success · Password reset success · Password reset request [S14]
- Audit log content actions: Post deleted · Topic deleted · Group deleted · Series deleted [S14]
- Audit log user actions: User account update · User account deactivate · User account reactivate · User account create [S14]
- Audit logs: yes [S14]
- Audit logs filters: action · user · date [S14]
- Audit logs ip details: yes [S14]
- Audit logs retention: 30 [S14]
- Backups: daily · yes [S5]
- Chrome extension: yes [S1]
- Compare pages: Confluence · Google Docs · Notion [S3]
- Competitive positioning: Confluence · Google Docs · Notion [S7]
- Content creation: yes · yes [S15]
- Customer logo use: yes [S8]
- Deletion backlinks warning: yes [S12]
- Deletion permanent: yes [S12]
- Desktop app: yes [S1]
- Dev process: Security design reviews, code reviews, unit & integration tests in development process [S5]
- Draft link access options: Direct · /direct · /public · /disabled [S13]
- Encryption at rest: AES · 128 · 256 [S5]
- Encryption in transit: yes · A+ [S5]
- Essentials: Posts and Topics · Realtime Collaboration · Templates · Verification · Unified Search [S4]
- Favorites: yes [S2]
- Getting started articles: 6 [S6]
- Google integration: Integrations listed include Google, Slack, GitHub, Asana, Okta [S16]
- Guest access: guests access only topics they are a member of [S4]
- Help center purpose: Slab help center described as a knowledge hub for the modern workplace [S6]
- Hierarchical topics: Hierarchical topics with multi-topic labels [S2]
- Integration summary: Slab fits into your existing workflows and centralizes your team's knowledge [S3]
- Ip restriction: yes · yes [S7]
- Mass archive content map: yes [S12]
- Mass deletion content map: yes [S12]
- Migration service: Vendor-assisted switching/migration [S1]
- Minimum age: 13 [S8]
- Modern editor: Modern editing capabilities with intuitive interface [S1]
- Monitoring: 24/7 · yes [S5]
- Offerings: yes · yes [S7]
- Onboarding templates: Slab Provisions · yes [S2]
- Org account control: Inviting organization may manage, reset, suspend or cancel the account, view usage data, and read or store Content [S8]
- Owasp training: yes [S5]
- Password hashing: bcrypt [S5]
- Payment provider: Stripe · yes [S5]
- Penetration testing: annual · yes [S5]
- Platform surface: Desktop App · Chrome Extension [S3]
- Post default draft visibility: draft · yes · yes [S13]
- Post feedback: yes [S2]
- Post mentions preview: yes · yes [S13]
- Post owner assignable: yes · yes [S13]
- Post permissions scope: Post permissions allow you to determine who has access to your posts. [S13]
- Post sharing channels: direct share with teammates · post link · topics (published posts only) [S13]
- Post verification: yes [S11]
- Posts articles: 26 [S6]
- Published link access options: Internal · /internal · /public [S13]
- Published link no permission: no [S13]
- Published permission levels: /editor · /viewer [S13]
- Readonly users: no [S4]
- Real time collaboration: yes [S2]
- Rich media: yes [S2]
- Search articles: 3 [S6]
- Search help section: search · Searching Slab content · Advanced searching · Unified search · 3 [S9]
- Search levels: team · individual · yes · yes [S10]
- Search relevance: reads · views · links · mentions [S2]
- Search result preview: yes [S10]
- Secrets management: yes · when possible [S5]
- Security SSO: Single Sign On · SAML-based SSO · SCIM Provisioning · Audit Logs [S4]
- Slab home: Slab Home centralizes favorite/recent posts; actions to create post, visit Slab, get help [S16]
- Slack create post command: New Slab posts can be created from Slack via a slash command like /newpost [S16]
- Slack notifications: Customizable Slack notifications for post edits, mentions, comments, new posts [S16]
- Slack SSO: Slab supports SSO login via Slack [S16]
- Team search admin setup: all users · admins [S10]
- Templates: Culture & Values · Code Reviews · One-on-Ones · Remote Work · Team Meetings [S1]
- Topic sharing permissions: /editor · /viewer [S13]
- Topics additive access: additive [S13]
- Topics articles: 6 [S6]
- Topics organization: Slab Topics organize content and provide context [S1]
- Uncategorized post visibility: yes [S13]
- Unified search: Unified Search pulls answers from Slab content and integrated tools [S1]
- Unified search: yes [S2]
- Unified search: Search across integrations inside Slab via Unified Search [S10]

**Support**
- Channels: yes [S1]
- Levels: Basic · Standard · Priority · Dedicated [S4]
- Troubleshooting articles: 5 [S6]
- Uptime SLA: yes [S4]

13 more facts on the canonical page: https://whats-best.ai/software/knowledge-base/slab

## Questions

### Is Slab European?

No. whats-best.ai classifies Slab as Rest of world.

### Where does Slab store data?

Not stated on the vendor’s pages as of 1 Nov 2026.

### Does Slab have a free plan?

Yes. Slab has a free plan, per [the vendor’s page captured 1 Nov 2026](https://whats-best.ai/evidence/13585).

### What are the best alternatives to Slab?

As of 1 Nov 2026, the panel rates [Document360 (3.5/5)](https://whats-best.ai/software/knowledge-base/document360), [BookStack (3/5)](https://whats-best.ai/software/knowledge-base/bookstack) and [XWiki (3/5)](https://whats-best.ai/software/knowledge-base/xwiki) highest among the other 13 Knowledge Base & Wiki products evaluated. Ratings that look equal are rounded to half stars; the order uses the unrounded rating, then the name. The highest-rated European alternative is [Document360](https://whats-best.ai/software/knowledge-base/document360) (UK / wider Europe). Ratings are the AI panel’s opinion, formed from public evidence: [how scores are made](https://whats-best.ai/methodology#ordering). The full list, with European products first: [Slab alternatives](https://whats-best.ai/software/knowledge-base/slab/alternatives).

## What this page leaves out

- 4 integrations facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 3 legal facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 1 compliance fact could not be confirmed on the vendor’s page as captured and was left out of this page and of the panel’s material.
- 1 pricing fact could not be confirmed on the vendor’s page as captured and was left out of this page and of the panel’s material.
- 1 product fact could not be confirmed on the vendor’s page as captured and was left out of this page and of the panel’s material.
- 1 sovereignty dimension could not be confirmed on the vendor’s own pages and is shown as unknown.
- 6 of the readings below were written against an earlier fact sheet — a fact has been corrected, added or pulled since. Until the panel next runs on this product you are reading the older judgement.

## Sources

- [S1] Vendor homepage: https://slab.com/ (checked 2026-11-01)
- [S2] Features page: https://slab.com/features/ (checked 2026-11-01)
- [S3] Integrations page: https://slab.com/integrations/ (checked 2026-11-01)
- [S4] Pricing page: https://slab.com/pricing/ (checked 2026-11-01)
- [S5] Security page: https://slab.com/security/ (checked 2026-11-01)
- [S6] Help center: https://help.slab.com/en/ (checked 2026-11-01)
- [S7] Privacy policy: https://slab.com/privacy/ (checked 2026-11-01)
- [S8] Terms of service: https://slab.com/terms/ (checked 2026-11-01)
- [S9] Editor, structure & search — found from sitemap: https://help.slab.com/en/collections/3258181-search (checked 2026-11-01)
- [S10] Editor, structure & search — found from sitemap: https://help.slab.com/en/articles/5137900-unified-search (checked 2026-11-01)
- [S11] Verification, ownership & freshness — found from sitemap: https://help.slab.com/en/articles/4136379-post-verification (checked 2026-11-01)
- [S12] Verification, ownership & freshness — found from sitemap: https://help.slab.com/en/articles/4231780-archiving-and-deleting-posts (checked 2026-11-01)
- [S13] Permissions, SSO & administration — found from sitemap: https://help.slab.com/en/articles/6390693-post-permissions (checked 2026-11-01)
- [S14] Permissions, SSO & administration — found from sitemap: https://help.slab.com/en/articles/6512729-audit-logs (checked 2026-11-01)
- [S15] Help-center publishing & integrations — found from sitemap: https://help.slab.com/en/articles/6545629-developer-tools-api-webhooks (checked 2026-11-01)
- [S16] Help-center publishing & integrations — found from sitemap: https://slab.com/integrations/slack/ (checked 2026-11-01)
- [S17] Import, export & self-hosting — found from sitemap: https://help.slab.com/en/collections/3258176-import-export (checked 2026-11-01)
- [S18] Import, export & self-hosting — found from sitemap: https://help.slab.com/en/articles/2271952-export-or-download-your-content (checked 2026-11-01)

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Cite as: whats-best.ai, "Slab — Knowledge Base & Wiki", AI panel analysis, as of 2026-11-06. https://whats-best.ai/software/knowledge-base/slab

Corrections: https://whats-best.ai/correct/1237?target=page