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Documentation · head to head

Antora vs Bump.sh

Antora logo

Antora

Documentation

Static site generator that assembles versioned AsciiDoc documentation from many git repositories

From
Free
Rated
-
Full reviewWebsite
Bump.sh logo

Bump.sh

Documentation

Hosted API documentation that diffs each new spec against the last and publishes a human readable changelog

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Antora has a free tier, so it costs nothing to try first.
  • Each has a real cost: Antora content must be AsciiDoc, so an existing markdown documentation set has to be converted before you can evaluate the tool properly.; Bump.sh the service is hosted only, so organisations that cannot send their API specification to a third party are excluded regardless of how well the diff works.
  • They diverge on capability: Antora covers Multi-repository sourcing, Bump.sh covers Structural spec diff.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Antora and Bump.sh actually diverge.

Attributes where Antora and Bump.sh differ
AttributeAntoraBump.sh
Starting priceFreeOn request
Pricing modelOpen source, no licence feequote
Free tierYesNo
PlatformsSelf-hosted, Static hosting, CI pipelinesWeb

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 Antora

  • Multi-repository sourcing
  • Version handling
  • AsciiDoc
  • Cross-component references
  • Separate UI bundle
  • Content reuse

Only in Bump.sh

  • Structural spec diff
  • Published changelog
  • AsyncAPI support
  • CI integration
  • Multi API hubs
  • Custom domain and branding
  • Access control

What people use each for

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

Antora

  • Publishing one documentation site from several product repositories owned by different teamsnot Bump.sh
  • Maintaining documentation for three or more supported releases without copying directoriesnot Bump.sh
  • Enterprise documentation teams that already write in AsciiDoc and need version-aware cross-referencesnot Bump.sh
  • Keeping documentation in the same repository and pull request as the code change it describesnot Bump.sh

Bump.sh

  • A public API with paying consumers where an accidental breaking change carries contractual consequencesnot Antora
  • An event driven platform that needs AsyncAPI documentation rather than REST only toolingnot Antora
  • A pull request gate that must fail when a spec change breaks an existing clientnot Antora
  • A partner portal grouping several internal APIs behind access control on a custom domainnot Antora

Where each one falls short

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

Antora

  • Content must be AsciiDoc, so an existing markdown documentation set has to be converted before you can evaluate the tool properly.
  • The component, version and module model must be understood before anything builds, and the first working site typically takes days rather than the afternoon a markdown generator needs.
  • Theming means building a separate UI bundle with Handlebars templates and its own pipeline, which is a front-end project most documentation teams are not staffed for.
  • There is no search included, so every deployment adds either a Lunr extension with its own index size limits or a paid hosted search service.
  • Builds fetch from every configured repository, so large multi-component sites become slow and depend on git availability during every documentation build.

Bump.sh

  • The service is hosted only, so organisations that cannot send their API specification to a third party are excluded regardless of how well the diff works.
  • Long form guides and tutorials are secondary to the reference, so most teams still run and pay for a second documentation site.
  • Diff quality depends on spec quality, and a specification generated loosely from code annotations produces noisy change reports that teams learn to ignore.
  • It is a small European vendor in a category where larger competitors bundle documentation with gateways and portals, so procurement at a large enterprise can take longer than the evaluation did.
  • Because pricing is not something a buyer can confirm without contact, budgeting for it early in a comparison is guesswork.

Pricing, plan by plan

Antora

Free
  • AntoraFree
    • Mozilla Public Licence 2.0
    • Unlimited components and versions
    • No hosting or seat costs

Bump.sh

On request
  • Bump.sh$undefined/year
    • Hosted API documentation portal
    • Automatic breaking change detection
    • Consumer facing changelog

Which should you pick?

Choose Antora if

  • You need multi-repository sourcing.
  • You want to start without paying.
  • You work on Self-hosted, Static hosting, CI pipelines.
  • You also want version handling.
Antora review

Choose Bump.sh if

  • You need structural spec diff.
  • You also want published changelog.
Bump.sh review

Questions people ask

Is Antora or Bump.sh better?
Neither clearly leads. Antora starts at Free and Bump.sh at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Antora or Bump.sh?
Antora has a free tier; the other does not. Paid plans start at Free for Antora and On request for Bump.sh.
Does Antora or Bump.sh run on more platforms?
Antora runs on Self-hosted, Static hosting, CI pipelines. Bump.sh runs on Web.
Can I use Antora for free?
Yes. Antora has a free tier, so you can try it without paying. Bump.sh starts at On request.
What is Antora best used for?
Antora is most often used for publishing one documentation site from several product repositories owned by different teams, maintaining documentation for three or more supported releases without copying directories, enterprise documentation teams that already write in asciidoc and need version-aware cross-references, keeping documentation in the same repository and pull request as the code change it describes. Of those, publishing one documentation site from several product repositories owned by different teams and maintaining documentation for three or more supported releases without copying directories are not what Bump.sh is typically brought in for.
What can Antora do that Bump.sh cannot?
Antora covers Multi-repository sourcing, Version handling, AsciiDoc, Cross-component references. Bump.sh covers Structural spec diff, Published changelog, AsyncAPI support, CI integration.

Answered from the vendors’ own pages

Antora: Can I use markdown with Antora?

Not as the primary format. Antora is an AsciiDoc pipeline, and treating markdown as a first-class input means a different tool.

Bump.sh: What does it do that a normal API docs renderer does not?

It compares each published spec with the previous one and tells you, and your consumers, exactly what changed and whether it breaks clients.

Antora: Is it worth it for a single product with one version?

Usually not. The model pays off when you have several repositories or several supported versions; below that a simpler generator will do the same job with far less setup.

Bump.sh: Does it support event driven APIs?

Yes. AsyncAPI is a first class input alongside OpenAPI, which is unusual in this category.

Antora: How does versioning actually work?

Each branch or tag of a source repository becomes a version of that component. You publish a new version by branching, not by copying a directory.

Bump.sh: Can I self host it?

No. It is a hosted service only.

Antora: Who maintains it?

OpenDevise, the group behind Asciidoctor, under the Mozilla Public Licence. Paid consulting and custom UI work are available from them separately.

Bump.sh: Can it block a merge?

Yes. The command line tool and GitHub action return a failure on a detected breaking change.

Bump.sh: Is it a full documentation site?

It is primarily reference and changelog. Plan on a separate generator for guides and conceptual content.

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