Formancevs
Stripe
Stripe: If you want a payments provider that also tracks balances and you do not need a ledger you control
Formance
Open source double-entry ledger and payment orchestration for money-moving software
As of 31 August 2026, Formance is free to use. Formance is an MIT-licensed double-entry ledger with a transaction DSL, built for teams that discovered too late that a balances table in Postgres is not a ledger. Softwr lists it under APIs. Formance is available on Linux, Docker, Kubernetes, Web.
Overview
What Formance does
Formance provides financial infrastructure software with two parts. The Ledger is a double-entry accounting engine with its own transaction language, Numscript, which describes how money splits and moves between accounts atomically, with multi-currency support and immutable transaction history. Payments is a connectivity and orchestration layer that normalises data from payment service providers and banks so reconciliation and payment routing can be expressed against a single model. The core ledger is published under the MIT licence with full source access and no restriction on deployment, which is unusual in this category. Competitors either sell a hosted ledger you cannot inspect or offer source-available licences that forbid the obvious use. That matters commercially because a ledger is the one component a financial product can never afford to lose access to: if the vendor fails or reprices, an MIT-licensed ledger you already run in your own infrastructure is a problem you can survive. The enterprise subscription adds operational tooling, support and reconciliation features, and its price is not published. The buyers are engineering teams at marketplaces, fintechs and platforms holding balances for users, typically after an incident where a homegrown balances implementation produced numbers that could not be explained to finance or to an auditor. The trade-off is that Formance solves the ledger correctly and leaves you everything else: it is not a bank, it holds no money, and it does not provide compliance, so it sits alongside a payments provider rather than replacing one.
What people use it for
- A marketplace splitting a single customer payment between seller, platform fee and tax that needs the split to be atomic and auditable
- A fintech whose homegrown balances table produced numbers finance could not reconcile and now needs proper double-entry before an audit
- A payments team that wants one normalised model across several PSPs so reconciliation is not written separately for each
- A company that wants its ledger under a licence it can keep running even if the vendor disappears
Related searches
The honest half
Where it falls short
Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about 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.
Cross-shopped
What people choose instead of Formance
Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.
- FormancevsMoov
Moov: If your need is US money movement with a wallet abstraction rather than a general ledger engine
- FormancevsColumn
Column: If you want the bank and the ledger to be the same regulated institution
Pricing
What Formance costs
Taken from the vendor's own pricing page. Prices move, so check before you buy.
Open Source
Free
- MIT licensed core ledger
- Numscript transaction DSL
- Multi-currency tracking
- Self-host anywhere
- Community support
Enterprise
On request
- Managed or private deployment
- Payments connectivity and reconciliation
- Support with response commitments
- Annual subscription, quoted
Capabilities
Features
Double-entry ledger
Every movement is balanced, immutable and auditable by construction
Numscript transaction DSL
Describes multi-party splits and fee deductions as one atomic transaction
Multi-currency
Tracks balances in several assets including non-monetary units
Payments connectivity
Normalises transaction data from payment providers and banks into one model
Reconciliation
Compares ledger state against external provider statements
Self-hosted deployment
Runs in your own infrastructure with no licence fee under MIT
Cloud offering
Managed hosting for teams that do not want to operate it
API and SDKs
HTTP API with client libraries for common backend languages
Answered, with sources
Questions people ask
Each answer names the page it came from, so you can check it rather than take our word for it.
Is Formance really open source?
Yes. The core ledger is MIT licensed with full source access and no deployment restrictions.
Does Formance move money?
No. It records and orchestrates movements; the actual payments happen at a PSP or bank you connect.
What does the enterprise version cost?
Not published. It is an annual subscription quoted per customer.
Do I have to use Numscript?
Yes for anything beyond the simplest transfers. It is how multi-party transactions are expressed atomically.
Keep looking
Where to go from Formance
- Formance alternativesEvery product people weigh against it
- Formance pricingPlans, floors and what the tiers exclude
- Formance badgesWhich rules it meets, and the figure behind each
- All APIs softwareThe full category
- Best APIs softwareThe shortlist, and how it was cut
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Softwr does not host reviews and shows no star rating for Formance, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.
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