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Web Development · head to head

Docusaurus vs Slab

Docusaurus logo

Docusaurus

Web Development

Static site generator from Meta for documentation sites

From
Free
Rated
-
Full reviewWebsite
Slab logo

Slab

Documentation

Internal knowledge base for teams, organised by topic rather than folders, with search across connected tools

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Docusaurus customisation past the config file assumes React knowledge, which not every docs team has; Slab it is built for internal knowledge, so public product documentation on a custom domain with versioning is outside what the product does.
  • They diverge on capability: Docusaurus covers MDX authoring, Slab covers Topics instead of folders.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Docusaurus and Slab actually diverge.

Attributes where Docusaurus and Slab differ
AttributeDocusaurusSlab
Pricing modelOpen source, no licence fee; hosting billed separatelyPer user per month
PlatformsWeb, Self-hosted, Node.jsWeb
CategoryWeb DevelopmentDocumentation

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Docusaurus

  • MDX authoring
  • Docs versioning
  • Internationalisation
  • Algolia search
  • React theming
  • Plugin architecture

Only in Slab

  • Topics instead of folders
  • Unified search
  • Post verification
  • Quill editor
  • Permissions
  • Free tier for small teams

What people use each for

The jobs each tool is most often brought in to do.

Docusaurus

  • Open-source project documentation that must track several released versionsnot Slab
  • Docs sites needing translation workflows rather than a single languagenot Slab
  • Teams already writing React who want to extend the docs theme directlynot Slab
  • Replacing a hand-rolled docs site with something that handles search and versioningnot Slab

Slab

  • Building an employee handbook and onboarding path that new starters can actually findnot Docusaurus
  • Replacing a folder-based wiki where nobody agrees which folder a document belongs innot Docusaurus
  • Companies whose knowledge is already spread across Drive, Slack and GitHub and needs one search boxnot Docusaurus
  • Documenting process and decisions for teams that do not want a project management tool attachednot Docusaurus

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Docusaurus

  • Customisation past the config file assumes React knowledge, which not every docs team has
  • Build times grow noticeably on very large sites, particularly with many versions and locales
  • Major version upgrades have required real migration work rather than a dependency bump
  • It generates a static site, so anything dynamic — gated content, per-user docs — needs a separate solution

Slab

  • It is built for internal knowledge, so public product documentation on a custom domain with versioning is outside what the product does.
  • There is no docs-as-code workflow, no git synchronisation and no markdown files on disk, so engineering-owned technical documentation ends up somewhere else anyway.
  • Hierarchy is shallow by design, and organisations that genuinely need deep nested structure find topics an awkward substitute rather than an improvement.
  • There is no offline mode, so a knowledge base that includes incident runbooks is unavailable during exactly the incident where the network is the problem.
  • Pricing is per user per month, so organisations where most staff only read a handbook twice a year still pay a seat for each of them.

Pricing, plan by plan

Docusaurus

Free
  • DocusaurusFree
    • Full generator
    • Versioning
    • Internationalisation

Slab

Free
  • FreeFree
    • Up to ten users
    • Unlimited posts
    • Core integrations
  • Slab$undefined/month
    • Priced per user per month with annual billing
    • Unlimited users and history
    • Full integration set and unified search

Which should you pick?

Choose Docusaurus if

  • You need mdx authoring.
  • You want to start without paying.
  • You work on Web, Self-hosted, Node.js.
  • You also want docs versioning.
Docusaurus review

Choose Slab if

  • You need topics instead of folders.
  • You want to start without paying.
  • You also want unified search.
Slab review

Questions people ask

Is Docusaurus or Slab better?
Neither clearly leads. Docusaurus starts at Free and Slab at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Docusaurus or Slab?
Docusaurus starts at Free and Slab at Free.
Does Docusaurus or Slab run on more platforms?
Docusaurus runs on Web, Self-hosted, Node.js. Slab runs on Web.
Can I use Docusaurus for free?
Both have a free tier, so you can try either at no cost before committing.
What is Docusaurus best used for?
Docusaurus is most often used for open-source project documentation that must track several released versions, docs sites needing translation workflows rather than a single language, teams already writing react who want to extend the docs theme directly, replacing a hand-rolled docs site with something that handles search and versioning. Of those, open-source project documentation that must track several released versions and docs sites needing translation workflows rather than a single language are not what Slab is typically brought in for.
What can Docusaurus do that Slab cannot?
Docusaurus covers MDX authoring, Docs versioning, Internationalisation, Algolia search. Slab covers Topics instead of folders, Unified search, Post verification, Quill editor.

Answered from the vendors’ own pages

Docusaurus: Is Docusaurus free?

Yes. Docusaurus is open source from Meta with no licence fee. You pay only for hosting, and static output can be served from free tiers on Netlify, Vercel or GitHub Pages.

Slab: Can I publish documentation publicly with Slab?

Posts can be shared by link, but it is not a product documentation platform. There is no custom domain publishing, versioning or API reference tooling.

Docusaurus: What is Docusaurus built with?

React and MDX. Pages are authored in MDX — Markdown that can embed React components — and the theme layer is React, so layouts are extended with components.

Slab: What does the free plan actually cover?

Up to ten users with unlimited posts and core integrations. It is a real free tier rather than a trial, and it is enough for a small company handbook.

Docusaurus: Does Docusaurus support multiple documentation versions?

Yes. Versioning is built in, so documentation for several released product versions can be maintained side by side, which is a main reason projects choose it.

Slab: How does it compare with a general workspace tool?

Slab does less on purpose. There are no databases, boards or task views, which makes it faster to write in and much harder to turn into an unmaintained sprawl.

Docusaurus: Does Docusaurus include search?

It integrates with Algolia DocSearch rather than shipping its own search index. Open-source projects can typically use Algolia’s free DocSearch programme.

Slab: Does search really cover other tools?

Yes, connected sources are indexed and appear in results. That integration is the main reason to choose it, so verify your specific tools are supported before committing.

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