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Documentation · head to head

BookStack vs Formance

BookStack logo

BookStack

Documentation

Self-hosted documentation wiki with a fixed shelf, book, chapter and page structure

From
Free
Rated
-
Full reviewWebsite
Formance logo

Formance

APIs

Open source double-entry ledger and payment orchestration for money-moving software

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: BookStack there is no vendor-hosted option at all, so you own the server, TLS certificates, database backups and upgrades, or you pay a third-party host that has no support relationship with the project and no ability to fix a bug.; Formance formance holds no money and provides no regulatory cover, so it must be paired with a payments provider or bank, and buyers occasionally mistake a ledger for a treasury system and discover the gap late.
  • They diverge on capability: BookStack covers Shelves, books, chapters, pages, Formance covers Double-entry ledger.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which BookStack and Formance actually diverge.

Attributes where BookStack and Formance differ
AttributeBookStackFormance
PlatformsWeb, Self-hosted, DockerLinux, Docker, Kubernetes, Web, API
CategoryDocumentationAPIs

Identical on both: starting price (Free), pricing model (Open source, no licence fee), 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 BookStack

  • Shelves, books, chapters, pages
  • Dual editors
  • Granular permissions
  • Full text search
  • Page revisions
  • REST API
  • External authentication
  • Export

Only in Formance

  • Double-entry ledger
  • Numscript transaction DSL
  • Multi-currency
  • Payments connectivity
  • Reconciliation
  • Self-hosted deployment
  • Cloud offering
  • API and SDKs

What people use each for

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

BookStack

  • Running an internal knowledge base on infrastructure inside a network that cannot reach external SaaSnot Formance
  • Documenting procedures and runbooks where a fixed structure prevents the tree sprawl a free-form wiki producesnot Formance
  • Replacing a Confluence licence for a team that needs pages, permissions and search but none of the surrounding suitenot Formance
  • Publishing customer-facing manuals from the same instance as internal documentation using per-book permissionsnot Formance

Formance

  • A marketplace splitting a single customer payment between seller, platform fee and tax that needs the split to be atomic and auditablenot BookStack
  • A fintech whose homegrown balances table produced numbers finance could not reconcile and now needs proper double-entry before an auditnot BookStack
  • A payments team that wants one normalised model across several PSPs so reconciliation is not written separately for eachnot BookStack
  • A company that wants its ledger under a licence it can keep running even if the vendor disappearsnot BookStack

Where each one falls short

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

BookStack

  • There is no vendor-hosted option at all, so you own the server, TLS certificates, database backups and upgrades, or you pay a third-party host that has no support relationship with the project and no ability to fix a bug.
  • The shelf, book, chapter, page hierarchy is fixed at four levels and cannot be reshaped, so migrating a deeply nested Confluence or MediaWiki space means flattening content by hand and losing the original structure.
  • It requires PHP and MySQL or MariaDB, which is a stack many engineering teams no longer run, so adopting it usually means introducing a database and runtime nobody else in the organisation maintains.
  • Development is concentrated on a single maintainer, which makes the bus factor a legitimate procurement question for anything the organisation intends to depend on for a decade.
  • Content lives in the database rather than in files under version control, so there is no docs-as-code workflow, no review by pull request and no branch per release.
  • Export is per page, chapter or book, so moving a large instance to another platform means writing a script against the REST API rather than copying a directory of Markdown.

Formance

  • Formance holds no money and provides no regulatory cover, so it must be paired with a payments provider or bank, and buyers occasionally mistake a ledger for a treasury system and discover the gap late.
  • Numscript is a domain-specific language your team must learn, and while it makes complex splits expressible it also means transaction logic sits outside the languages your engineers already debug well.
  • Self-hosting a ledger that must never lose or duplicate a transaction is a serious operational commitment covering backups, upgrades and Postgres tuning, which is real cost the zero licence fee hides.
  • Enterprise pricing is not published, so the difference between the free path and the supported path cannot be evaluated without a sales conversation.
  • The company is much smaller than the incumbent alternatives, and while the MIT licence protects the code it does not protect the roadmap, so features on the hosted side may arrive slowly or change direction.

Pricing, plan by plan

BookStack

Free
  • BookStackFree
    • MIT licence with no paid edition
    • All features included, no seat limits
    • Self-hosted on your own infrastructure

Formance

Free
  • Open SourceFree
    • MIT licensed core ledger
    • Numscript transaction DSL
    • Multi-currency tracking
  • Enterprise$undefined/year
    • Managed or private deployment
    • Payments connectivity and reconciliation
    • Support with response commitments

Which should you pick?

Choose BookStack if

  • You need shelves, books, chapters, pages.
  • You want to start without paying.
  • You work on Web, Self-hosted, Docker.
  • You also want dual editors.
BookStack review

Choose Formance if

  • You need double-entry ledger.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Web, API.
  • You also want numscript transaction dsl.
Formance review

Questions people ask

Is BookStack or Formance better?
Neither clearly leads. BookStack starts at Free and Formance at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, BookStack or Formance?
BookStack starts at Free and Formance at Free.
Does BookStack or Formance run on more platforms?
BookStack runs on Web, Self-hosted, Docker. Formance runs on Linux, Docker, Kubernetes, Web, API.
Can I use BookStack for free?
Both have a free tier, so you can try either at no cost before committing.
What is BookStack best used for?
BookStack is most often used for running an internal knowledge base on infrastructure inside a network that cannot reach external saas, documenting procedures and runbooks where a fixed structure prevents the tree sprawl a free-form wiki produces, replacing a confluence licence for a team that needs pages, permissions and search but none of the surrounding suite, publishing customer-facing manuals from the same instance as internal documentation using per-book permissions. Of those, running an internal knowledge base on infrastructure inside a network that cannot reach external saas and documenting procedures and runbooks where a fixed structure prevents the tree sprawl a free-form wiki produces are not what Formance is typically brought in for.
What can BookStack do that Formance cannot?
BookStack covers Shelves, books, chapters, pages, Dual editors, Granular permissions, Full text search. Formance covers Double-entry ledger, Numscript transaction DSL, Multi-currency, Payments connectivity.

Answered from the vendors’ own pages

BookStack: Is there a paid or hosted version?

No. BookStack is MIT-licensed with no commercial edition and no official hosted service. Third-party hosts exist but are unaffiliated with the project.

Formance: Is Formance really open source?

Yes. The core ledger is MIT licensed with full source access and no deployment restrictions.

BookStack: Can I nest pages more deeply?

No. Four levels is the design, not a limitation waiting to be fixed, and content that needs deeper nesting has to be restructured.

Formance: Does Formance move money?

No. It records and orchestrates movements; the actual payments happen at a PSP or bank you connect.

BookStack: Does it support single sign-on?

Yes, through LDAP, SAML2 or OpenID Connect, with group to role mapping, and none of it is gated behind a paid tier because there is no paid tier.

Formance: What does the enterprise version cost?

Not published. It is an annual subscription quoted per customer.

BookStack: How hard is it to migrate content in?

Straightforward for flat content through the REST API, awkward for deeply nested wikis, because the structure has to be collapsed to fit.

Formance: Do I have to use Numscript?

Yes for anything beyond the simplest transfers. It is how multi-party transactions are expressed atomically.

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