Slab

What is Slab?

Slab is a knowledge base and wiki platform built to help teams capture, organize, and find internal documentation in one place. Where all-in-one tools like Notion try to be a workspace for notes, tasks, and databases at once, Slab deliberately stays narrow: it does internal knowledge sharing — onboarding docs, runbooks, processes, meeting notes, engineering wikis — and tries to do that one job with as little friction as possible. The result is a fast, clean editor and a structure that teams can actually keep up to date, which is the part most wikis fail at.

Slab organizes content with Topics rather than nested folders, so a single post can live under multiple subjects and stays easy to browse as the knowledge base grows. Its Verification feature lets owners mark posts as reviewed and flags content that may be going stale, which keeps documentation trustworthy over time. The standout capability is Unified Search: a single search box that returns results from Slab content and from connected tools such as Slack, GitHub, Jira, and Google Drive, so people find the answer regardless of which app it lives in. Real-time collaborative editing, templates, and granular permissions round out the core product.

On the AI side, Slab adds AI Ask for natural-language questions answered from your own documentation, AI Autofix for grammar and formatting cleanup inside the editor, and AI Predict for surfacing relevant posts. Pricing is among the most affordable in the category: a free plan covers up to 10 users, the Startup plan is $6.67 per user per month (billed annually) for unlimited users and AI Autofix, and the Business plan is $12.50 per user per month for the full AI suite plus SAML SSO, SCIM provisioning, and a GraphQL API. Slab is most valuable for startups and mid-size teams that want a dependable internal wiki without the complexity — or the cost — of a broader workspace platform.

Slab Pricing

Free ($0) — Up to 10 users with unlimited posts and topics, 3 guests per user, 10MB attachments, 90 days of version history, 30-day analytics, real-time collaboration, and Unified Search. A genuinely usable tier for small teams.

Startup ($6.67/user/mo, billed annually) — Unlimited users, 5 guests per user, 25MB attachments, 365 days of version history, standard support, and AI Autofix. The entry paid tier for growing teams that need more than 10 seats.

Business ($12.50/user/mo, billed annually) — Everything in Startup plus 100MB attachments, unlimited version history, priority support, the full AI suite (AI Autofix, AI Predict, AI Ask), SAML-based SSO, SCIM provisioning, and a GraphQL API with webhooks.

Enterprise (custom) — Minimum 100 users, with unlimited guests and attachments, unlimited version history, advanced AI Ask, audit logs, and dedicated support. Contact Slab sales for pricing.

Key Features

• Unified Search — one search box that returns results from Slab content and from connected tools like Slack, GitHub, Jira, and Google Drive, so answers surface no matter where they live
• Topics — organize posts by subject instead of rigid folders; a single post can belong to multiple topics and stay easy to browse as the wiki grows
• Verification — mark posts as reviewed and automatically flag content that may be stale, keeping documentation trustworthy over time
• AI Ask — ask a question in natural language and get an answer grounded in your team's own documentation (Business and Enterprise plans)
• AI Autofix — clean up grammar, spelling, and formatting directly in the editor (Startup plan and up)
• AI Predict — surfaces relevant posts and suggested reading based on what you are working on (Business and up)
• Real-time collaborative editor — a clean, fast writing experience with templates, formatting, and multiple editors at once
• Integrations — connects with Slack, GitHub, Jira, Google Drive, and other tools so documentation links into your existing stack
• Enterprise controls — SAML-based SSO, SCIM provisioning, a GraphQL API with webhooks, and audit logs on higher tiers

Pros & Cons

Best For

Startups and small teams that need a dependable internal wiki and can run on the free plan for up to 10 people. Engineering and product teams who want runbooks, RFCs, and onboarding docs in a fast editor with search that reaches into GitHub, Jira, and Slack. Operations and people teams documenting processes and onboarding who value Verification to keep content current. Companies tired of wiki sprawl who want a focused, well-organized knowledge base rather than another all-in-one workspace to maintain.