Firefly III
Budgeting & FinanceSelf-hosted personal finance manager
Replaces Mint, YNAB
Best API Budgeting & Finance for self-hosting
The 14 best API budgeting & finance you can self-host, ranked by community traction.
Lago
Budgeting & FinanceOpen-source billing and metering API
Replaces Stripe Billing, Chargebee
Invoice Ninja
Budgeting & FinanceOpen-source invoicing and billing platform
Replaces FreshBooks, QuickBooks
Akaunting
Budgeting & FinanceFree open-source accounting software online
Replaces QuickBooks, Xero
Ghostfolio
Budgeting & FinanceOpen-source wealth and portfolio tracker
Replaces Personal Capital, Sharesight
Crater
Budgeting & FinanceFree invoicing and expense tracking app
Replaces FreshBooks, Invoicely
Beancount
Budgeting & FinanceDouble-entry bookkeeping in plain text with a query language
Replaces QuickBooks, Xero
Kill Bill
Budgeting & FinanceOpen-source subscription billing platform
Replaces Zuora, Chargebee
InvoiceShelf
Budgeting & FinanceOpen-source invoicing app for freelancers and small businesses
Replaces FreshBooks, Wave
Formance Ledger
Budgeting & FinanceProgrammable double-entry financial ledger service
Replaces Modern Treasury, Stripe Ledger
I Hate Money
Budgeting & FinanceShared expense manager for groups
Replaces Splitwise, Tricount
Cospend
Budgeting & FinanceNextcloud app for shared budgets and expense splitting
Replaces Splitwise, Tricount
MyFin
Budgeting & FinanceSelf-hosted personal budgeting and finance manager
Replaces YNAB, Mint
Costflow
Budgeting & FinanceNatural-language interface for plain-text accounting
Replaces Expensify, Mint
No apps match these filters.
At a glance
| App | Deploy effort | Difficulty | Min. RAM | License | ★ Stars |
|---|---|---|---|---|---|
| Firefly III | Under-an-hour setup | Medium | 512 MB | AGPL-3.0 | 24,887 |
| Lago | Under-an-hour setup | Hard | 2,048 MB | AGPL-3.0 | 10,678 |
| Invoice Ninja | Under-an-hour setup | Medium | 512 MB | Elastic-2.0 | 10,271 |
| Akaunting | Under-an-hour setup | Medium | 512 MB | GPL-3.0 | 10,182 |
| Ghostfolio | Under-an-hour setup | Medium | 512 MB | AGPL-3.0 | 9,446 |
| Crater | Under-an-hour setup | Medium | 512 MB | AAL | 8,353 |
| Beancount | Read-the-docs project | Hard | 128 MB | GPL-2.0 | 6,080 |
| Kill Bill | Under-an-hour setup | Hard | 2,048 MB | Apache-2.0 | 5,794 |
| InvoiceShelf | Under-an-hour setup | Medium | 512 MB | AGPL-3.0 | 1,855 |
| Formance Ledger | Under-an-hour setup | Medium | 512 MB | MIT | 1,435 |
Quick picks
- Most adopted: Firefly III (24,887 GitHub stars).
- Lightest footprint: Beancount (from 128 MB RAM, against 2,048 MB for the heaviest here).
- Licensing: 5 of 14 use AGPL-3.0; check the rest individually if you plan to modify and redistribute.
Every option here is open-source and self-hostable, tagged API within the budgeting & finance category. Deploy effort is graded from published container recipes, not vendor claims — see the methodology.