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Documentation · head to head

Nuclino vs Slab

Nuclino logo

Nuclino

Documentation

Fast team wiki with list, board and graph views of the same content

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: Nuclino there is no publishing layer, so a public help centre or versioned product documentation cannot live here and has to be maintained in a second tool.; 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: Nuclino covers Item graph, 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 Nuclino and Slab actually diverge.

Attributes where Nuclino and Slab differ
AttributeNuclinoSlab
PlatformsWeb, macOS, Windows, iOS, AndroidWeb

Identical on both: starting price (Free), pricing model (Per user per month), free tier (Yes), user rating (Not yet rated), category (Documentation).

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 Nuclino

  • Item graph
  • Multiple collection views
  • Real time editing
  • Instant search
  • Version history
  • EU hosting

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.

Nuclino

  • A small company that wants internal process notes searchable without running a wiki platformnot Slab
  • Teams that need to see how internal documents relate to each other rather than filing them in foldersnot Slab
  • Organisations that must keep internal knowledge hosted inside the European Unionnot Slab
  • Replacing scattered shared documents where search, not layout, is the actual problemnot Slab

Slab

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

Where each one falls short

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

Nuclino

  • There is no publishing layer, so a public help centre or versioned product documentation cannot live here and has to be maintained in a second tool.
  • The free plan is capped at roughly fifty items, which a real team passes within weeks, making it a trial rather than a usable tier.
  • Per user pricing means occasional readers who open a document twice a month cost the same as the writers who maintain it.
  • The editor is intentionally limited, with no databases, relations or page-level templates, so structured content such as a request register needs a different product.
  • Export options are limited to Markdown and PDF per item, so moving a large workspace elsewhere is a bulk conversion job rather than a supported migration.

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

Nuclino

Free
  • FreeFree
    • Around 50 items in total
    • Limited storage
    • Core editing and search
  • Starter$6/month
    • Per user per month
    • Unlimited items and version history
    • Larger file uploads
  • Business$12/month
    • Per user per month
    • Single sign-on and admin controls
    • Private workspaces and audit features

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 Nuclino if

  • You need item graph.
  • You want to start without paying.
  • You work on Web, macOS, Windows, iOS, Android.
  • You also want multiple collection views.
Nuclino 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 Nuclino or Slab better?
Neither clearly leads. Nuclino 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, Nuclino or Slab?
Nuclino starts at Free and Slab at Free.
Does Nuclino or Slab run on more platforms?
Nuclino runs on Web, macOS, Windows, iOS, Android. Slab runs on Web.
Can I use Nuclino for free?
Both have a free tier, so you can try either at no cost before committing.
What is Nuclino best used for?
Nuclino is most often used for a small company that wants internal process notes searchable without running a wiki platform, teams that need to see how internal documents relate to each other rather than filing them in folders, organisations that must keep internal knowledge hosted inside the european union, replacing scattered shared documents where search, not layout, is the actual problem. Of those, a small company that wants internal process notes searchable without running a wiki platform and teams that need to see how internal documents relate to each other rather than filing them in folders are not what Slab is typically brought in for.
What can Nuclino do that Slab cannot?
Nuclino covers Item graph, Multiple collection views, Real time editing, Instant search. Slab covers Topics instead of folders, Unified search, Post verification, Quill editor.

Answered from the vendors’ own pages

Nuclino: Can Nuclino publish a public documentation site?

No. Individual items can be shared by link, but there is no branded, versioned public site.

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.

Nuclino: Where is the data stored?

In the European Union, by a company registered in Germany, which is usually the reason procurement shortlists it.

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.

Nuclino: Does it handle translated content?

No. There is no locale model, so translations would be separate items kept in sync by hand.

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.

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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