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Documentation · head to head

Fumadocs vs Stoplight

Fumadocs logo

Fumadocs

Documentation

Documentation framework for Next.js that treats the docs site as an application rather than a static export

From
Free
Rated
-
Full reviewWebsite
Stoplight logo

Stoplight

APIs

API design, documentation, and governance platform

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Fumadocs it is a library rather than a finished theme, so the initial setup is meaningfully longer than a generator that ships a working site from one command.; Stoplight the free plan allows one project and one user
  • They diverge on capability: Fumadocs covers Next.js App Router native, Stoplight covers API Design.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Fumadocs and Stoplight actually diverge.

Attributes where Fumadocs and Stoplight differ
AttributeFumadocsStoplight
Pricing modelOpen source, no licence feesubscription
PlatformsWeb, macOS, Windows, LinuxWeb, Cloud
CategoryDocumentationAPIs
FoundedUnknown2014

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 Fumadocs

  • Next.js App Router native
  • Multiple content sources
  • OpenAPI page generation
  • Built in search
  • Headless and styled layers
  • Type safe frontmatter
  • Code and content colocation

Only in Stoplight

  • API Design
  • API Documentation
  • Governance
  • GitHub
  • GitLab
  • Jenkins
  • Azure DevOps
  • Web support

What people use each for

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

Fumadocs

  • Documentation that must sit behind login and show different content to different customer plansnot Stoplight
  • A Next.js product team that wants docs to deploy in the same pipeline as the applicationnot Stoplight
  • API reference pages generated from an OpenAPI document alongside hand written guides in one navigation treenot Stoplight
  • A design system site where the component documentation must render the live components from the same codebasenot Stoplight

Stoplight

  • API design and documentationnot Fumadocs
  • API governance and standardsnot Fumadocs
  • Team collaboration on API developmentnot Fumadocs
  • API mocking and testingnot Fumadocs

Where each one falls short

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

Fumadocs

  • It is a library rather than a finished theme, so the initial setup is meaningfully longer than a generator that ships a working site from one command.
  • Maintenance is concentrated in a very small group, so an unresponsive week is a blocked upgrade and there is no support contract to escalate to.
  • It only targets Next.js, so adopting it commits the documentation to that framework and a later migration means rewriting the site rather than swapping a theme.
  • Breaking changes have arrived across minor versions during rapid development, so pinning versions and reading migration notes is a recurring cost rather than a one off.
  • Running docs inside the application means docs traffic hits your application infrastructure and shares its failure modes, where a separate static site would have stayed up.

Stoplight

  • The free plan allows one project and one user
  • Private projects, multi branch support and custom domains start at the Startup plan, $113 a month billed annually
  • SSO and shared style guides are Pro Team only, at $362 a month billed annually
  • Seats beyond each plan's allowance are $11 to $27 each per month depending on tier and billing period

Pricing, plan by plan

Fumadocs

Free
  • Open sourceFree
    • MIT licence
    • All packages included
    • Self hosted or deployed with your Next.js application

Stoplight

Free
  • FreeFree
    • 1 project
    • 1 user
    • Basic API design and documentation features
  • Basic$56/month
    • Annual: $44/user/year
    • 3 included users; $14 per additional user (monthly)
    • Unlimited projects
  • Startup$147/month
    • Annual: $113/user/year
    • 8 included users; $14 per additional user (monthly)
    • Private projects
  • Pro Team$453/month
    • Annual: $362/user/year
    • 15 included users; $27 per additional user (monthly)
    • Up to 20 teams

Which should you pick?

Choose Fumadocs if

  • You need next.js app router native.
  • You want to start without paying.
  • You work on Web, macOS, Windows, Linux.
  • You also want multiple content sources.
Fumadocs review

Choose Stoplight if

  • You need api design.
  • You want to start without paying.
  • You work on Web, Cloud.
  • You also want api documentation.
Stoplight review

Questions people ask

Is Fumadocs or Stoplight better?
Neither clearly leads. Fumadocs starts at Free and Stoplight at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Fumadocs or Stoplight?
Fumadocs starts at Free and Stoplight at Free.
Does Fumadocs or Stoplight run on more platforms?
Fumadocs runs on Web, macOS, Windows, Linux. Stoplight runs on Web, Cloud.
Can I use Fumadocs for free?
Both have a free tier, so you can try either at no cost before committing.
What is Fumadocs best used for?
Fumadocs is most often used for documentation that must sit behind login and show different content to different customer plans, a next.js product team that wants docs to deploy in the same pipeline as the application, api reference pages generated from an openapi document alongside hand written guides in one navigation tree, a design system site where the component documentation must render the live components from the same codebase. Of those, documentation that must sit behind login and show different content to different customer plans and a next.js product team that wants docs to deploy in the same pipeline as the application are not what Stoplight is typically brought in for.
What can Fumadocs do that Stoplight cannot?
Fumadocs covers Next.js App Router native, Multiple content sources, OpenAPI page generation, Built in search. Stoplight covers API Design, API Documentation, Governance, GitHub.

Answered from the vendors’ own pages

Fumadocs: Can I put documentation behind authentication?

Yes. Pages are Next.js server components, so the same session and authorisation checks the rest of the application uses apply.

Stoplight: How much does Stoplight cost?

Stoplight starts with a free plan (1 project, 1 user), then Basic at $56/month per user (or $44/year), Startup at $147/month per user (or $113/year), Pro Team at $453/month per user (or $362/year), and Enterprise at custom pricing.

Source
Fumadocs: Does it work outside Next.js?

No. The UI layer depends on the Next.js App Router.

Stoplight: How many included users are in each Stoplight plan?

Basic includes 3 users, Startup includes 8 users, and Pro Team includes 15 users. Additional users beyond the included count cost $14/month for Basic and Startup, or $27/month for Pro Team.

Source
Fumadocs: Can it generate pages from an OpenAPI spec?

Yes, including operation pages, schema rendering and an interactive request playground.

Stoplight: Does Stoplight offer a free trial?

Yes, all paid Stoplight plans include a 14-day free trial. The free plan has no trial period as it is always available.

Source
Fumadocs: Who maintains it and is that a risk?

A very small maintainer group. For a long lived commercial documentation set, treat the low bus factor as a real risk and budget for owning a fork.

Stoplight: Does Stoplight's free plan have limitations?

Yes, the free plan includes only 1 project and 1 user. Users viewing public documentation anonymously are not counted toward the 1-user limit.

Source
Fumadocs: Do I still need a separate docs deployment?

No, and avoiding one is the main reason to choose it. The cost is that docs share your application uptime.

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