Softwr

Documentation · head to head

MadCap Flare vs Slab

MadCap Flare logo

MadCap Flare

Documentation

Single-source technical authoring tool sold as a per-author annual subscription

From
On request
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

  • Only Slab has a free tier, so it costs nothing to try first.
  • Each has a real cost: MadCap Flare flare is now subscription-only at $3,150 per author per year; a buyer who previously owned a perpetual licence faces an ongoing cost that did not exist under the old purchase model; 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: MadCap Flare covers Single-source publishing, Slab covers Topics instead of folders.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which MadCap Flare and Slab actually diverge.

Attributes where MadCap Flare and Slab differ
AttributeMadCap FlareSlab
Starting priceOn requestFree
Pricing modelPer author per year, annual subscription onlyPer user per month
Free tierNoYes
PlatformsWindows, WebWeb

Identical on both: 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 MadCap Flare

  • Single-source publishing
  • Conditional text and variables
  • Flare Online cloud authoring
  • Topic-based structure
  • MadCap Central integration

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.

MadCap Flare

  • A technical writing team moving off an unsupported or discontinued help authoring tool that needs single-source, multi-format publishingnot Slab
  • An enterprise documentation team needing conditional content to manage several product editions from one sourcenot Slab
  • A team wanting a familiar desktop authoring workflow rather than a browser-only or fully structured CCMS environmentnot Slab
  • A documentation team that needs reviewer seats for subject matter experts without giving them full author licences, available on the Online plansnot Slab

Slab

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

Where each one falls short

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

MadCap Flare

  • Flare is now subscription-only at $3,150 per author per year; a buyer who previously owned a perpetual licence faces an ongoing cost that did not exist under the old purchase model
  • A 12-month commitment is required on Flare Online, so a team cannot trial the cloud tier month to month before committing budget
  • Pricing above the Desktop base tier is entirely quote-based for Online plans, so team and business-tier costs are not comparable across vendors without a sales call
  • The authoring model, while less rigid than a full CCMS, still requires writers to learn topic-based structuring, conditional tags and variables, which is a real ramp for staff used to Word or a wiki
  • Storage is capped per tier with paid add-ons in 10 GB increments, so a documentation set with heavy image or video assets can incur additional cost beyond the headline price
  • Windows-only desktop authoring limits teams that standardise on macOS or Linux to the browser-based Flare Online tier, which may not have full feature parity with desktop

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

MadCap Flare

On request
  • Flare Desktop$3150/year
    • On-premises topic-based authoring
    • Unlimited tech support
    • Free introductory training
  • Flare Online (Individual/Team/Business)$undefined/year
    • Cloud authoring plus desktop for each author
    • Reviewer seats and storage scale by tier
    • 12-month commitment required

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 MadCap Flare if

  • You need single-source publishing.
  • You work on Windows, Web.
  • You also want conditional text and variables.
MadCap Flare 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 MadCap Flare or Slab better?
Neither clearly leads. MadCap Flare starts at On request and Slab at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, MadCap Flare or Slab?
Slab has a free tier; the other does not. Paid plans start at On request for MadCap Flare and Free for Slab.
Does MadCap Flare or Slab run on more platforms?
MadCap Flare runs on Windows, Web. Slab runs on Web.
Can I use Slab for free?
Yes. Slab has a free tier, so you can try it without paying. MadCap Flare starts at On request.
What is MadCap Flare best used for?
MadCap Flare is most often used for a technical writing team moving off an unsupported or discontinued help authoring tool that needs single-source, multi-format publishing, an enterprise documentation team needing conditional content to manage several product editions from one source, a team wanting a familiar desktop authoring workflow rather than a browser-only or fully structured ccms environment, a documentation team that needs reviewer seats for subject matter experts without giving them full author licences, available on the online plans. Of those, a technical writing team moving off an unsupported or discontinued help authoring tool that needs single-source, multi-format publishing and an enterprise documentation team needing conditional content to manage several product editions from one source are not what Slab is typically brought in for.
What can MadCap Flare do that Slab cannot?
MadCap Flare covers Single-source publishing, Conditional text and variables, Flare Online cloud authoring, Topic-based structure. Slab covers Topics instead of folders, Unified search, Post verification, Quill editor.

Answered from the vendors’ own pages

MadCap Flare: Is there still a perpetual licence option?

No, MadCap Flare is sold on an annual subscription basis; the previous perpetual licence model is not offered on current pricing.

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.

MadCap Flare: What is the entry price?

Flare Desktop is $3,150 per author per year; Flare Online plans are quote-only.

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.

MadCap Flare: Is there a minimum commitment?

Flare Online requires a 12-month commitment; Flare Desktop is billed annually.

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.

Share

Related pages

More on MadCap Flare

More on Slab

Keep looking

Other head to heads