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APIs · head to head

Bruno vs Formance

Bruno logo

Bruno

APIs

Open-source IDE for API exploration with git-friendly collections

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: Bruno native Git integration, the feature that distinguishes it from cloud API clients, is Pro only at $6 per user per month; 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: Bruno covers API Testing, Formance covers Double-entry ledger.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Bruno and Formance actually diverge.

Attributes where Bruno and Formance differ
AttributeBrunoFormance
Pricing modelfreemiumOpen source, no licence fee
PlatformsWindows, MacOS, LinuxLinux, Docker, Kubernetes, Web, API
Founded2022Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (APIs).

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 Bruno

  • API Testing
  • Environment management
  • Git-friendly storage
  • GitHub
  • Git repositories
  • Local file system
  • Windows support
  • MacOS support

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.

Bruno

  • Sending and testing HTTP requests from a local clientnot Formance
  • Keeping API collections in Git rather than a vendor cloudnot Formance
  • Offline API development without an accountnot Formance
  • Importing and syncing OpenAPI specificationsnot Formance

Formance

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

Where each one falls short

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

Bruno

  • Native Git integration, the feature that distinguishes it from cloud API clients, is Pro only at $6 per user per month
  • OpenAPI syncs are capped at 5 a month on the free tier
  • SSO, SCIM and user management require Ultimate at $11 per user per month
  • Private workspaces are a paid feature
  • Advertised prices are annual rates

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

Bruno

Free
  • Open SourceFree
    • Core API Client
    • Limited Git integration
    • 2 Workspaces
  • Pro$6/month
    • Core API Client
    • Native Git integration
    • Unlimited Workspaces
  • Ultimate$11/month
    • Core API Client
    • Full Git integration
    • Unlimited Workspaces

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 Bruno if

  • You need api testing.
  • You want to start without paying.
  • You work on Windows, MacOS, Linux.
  • You also want environment management.
Bruno 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 Bruno or Formance better?
Neither clearly leads. Bruno 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, Bruno or Formance?
Bruno starts at Free and Formance at Free.
Does Bruno or Formance run on more platforms?
Bruno runs on Windows, MacOS, Linux. Formance runs on Linux, Docker, Kubernetes, Web, API.
Can I use Bruno for free?
Both have a free tier, so you can try either at no cost before committing.
What is Bruno best used for?
Bruno is most often used for sending and testing http requests from a local client, keeping api collections in git rather than a vendor cloud, offline api development without an account, importing and syncing openapi specifications. Of those, sending and testing http requests from a local client and keeping api collections in git rather than a vendor cloud are not what Formance is typically brought in for.
What can Bruno do that Formance cannot?
Bruno covers API Testing, Environment management, Git-friendly storage, GitHub. Formance covers Double-entry ledger, Numscript transaction DSL, Multi-currency, Payments connectivity.

Answered from the vendors’ own pages

Bruno: What is included in Bruno's free tier?

The Open Source plan includes the core API client, limited Git integration, and up to 2 workspaces at no cost. A 14-day free trial of the Ultimate plan is also available without requiring a credit card.

Source
Formance: Is Formance really open source?

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

Bruno: What is the difference between Bruno Pro and Ultimate plans?

Pro ($6/month) includes native Git integration and unlimited workspaces. Ultimate ($11/month) adds SSO/SCIM support, audit logs, 24-hour support (vs. 48-hour), and an account manager. Ultimate supports unlimited OpenAPI syncs while Pro is limited to 5 per month.

Source
Formance: Does Formance move money?

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

Bruno: How much does Bruno Pro save compared to other API tools?

The vendor claims Ultimate saves teams more than 70% versus Postman, though this comparison is promotional rather than a specific cost metric.

Source
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.

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