Softwr

Cloud · head to head

Buildah vs Formance

Buildah logo

Buildah

Cloud

Build OCI container images without a daemon or a Dockerfile

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: Buildah linux only, with no native macOS or Windows support; 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: Buildah covers Daemonless builds, Formance covers Double-entry ledger.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Buildah and Formance actually diverge.

Attributes where Buildah and Formance differ
AttributeBuildahFormance
PlatformsLinuxLinux, Docker, Kubernetes, Web, API
CategoryCloudAPIs

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 Buildah

  • Daemonless builds
  • Rootless
  • Dockerfile compatible
  • Scriptable builds

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.

Buildah

  • Building images in CI without a privileged Docker daemonnot Formance
  • Producing minimal images with tighter layer control than a Dockerfile givesnot Formance
  • Scripted image assembly where a Dockerfile is the wrong abstractionnot Formance

Formance

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

Where each one falls short

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

Buildah

  • Linux only, with no native macOS or Windows support
  • Scriptable builds are powerful but less portable and less familiar than a Dockerfile
  • Narrow by design: it builds images and does not run them, so it needs Podman or another runtime alongside

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

Buildah

Free
  • BuildahFree
    • Full functionality
    • No usage limits
    • Community support

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 Buildah if

  • You need daemonless builds.
  • You want to start without paying.
  • You work on Linux.
  • You also want rootless.
Buildah 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 Buildah or Formance better?
Neither clearly leads. Buildah 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, Buildah or Formance?
Buildah starts at Free and Formance at Free.
Does Buildah or Formance run on more platforms?
Buildah runs on Linux. Formance runs on Linux, Docker, Kubernetes, Web, API.
Can I use Buildah for free?
Both have a free tier, so you can try either at no cost before committing.
What is Buildah best used for?
Buildah is most often used for building images in ci without a privileged docker daemon, producing minimal images with tighter layer control than a dockerfile gives, scripted image assembly where a dockerfile is the wrong abstraction. Of those, building images in ci without a privileged docker daemon and producing minimal images with tighter layer control than a dockerfile gives are not what Formance is typically brought in for.
What can Buildah do that Formance cannot?
Buildah covers Daemonless builds, Rootless, Dockerfile compatible, Scriptable builds. Formance covers Double-entry ledger, Numscript transaction DSL, Multi-currency, Payments connectivity.

Answered from the vendors’ own pages

Buildah: Is Buildah free?

Yes, open source with no licence fee.

Formance: Is Formance really open source?

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

Buildah: Do I still need a Dockerfile?

No. Buildah reads Dockerfiles if you have them, but images can be built entirely from shell commands instead.

Formance: Does Formance move money?

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

Buildah: How is Buildah different from Podman?

Buildah builds images; Podman runs them. Podman actually embeds Buildah for its build command, and the two are designed to be used together.

Formance: What does the enterprise version cost?

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

Formance: Do I have to use Numscript?

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

Share

Related pages

More on Buildah

More on Formance

Keep looking

Other head to heads