GnuCash gnucash.org ↗

ERPNext ↗Finance & payments

Open source ERP covering accounting, invoicing and timesheets.

FreeAgent ↗Finance & payments

Online accounting and invoicing software for freelancers and small businesses.

Wave ↗Finance & payments

Invoicing and accounting software for small businesses.

FreeTaxUSA ↗Finance & payments

A US online tax filing service.

Mercury ↗Finance & payments

An online banking service for businesses and individuals.

Privacy.com ↗Finance & payments

A service that issues virtual payment cards for online purchases.

Patreon ↗Finance & payments

A membership platform for funding creators.

OpenSSH ↗Security & privacy

The standard open-source SSH client and server suite.

Mercury ↗

An online banking service for businesses and individuals.

BLIK ↗

A Polish mobile payment system.

Wise ↗

An online money transfer and multi-currency account service.

Airwallex ↗

Financial platform offering virtual card issuing among other payment services.

Aiwyn Tax connector ↗

A Claude marketplace connector that uses a tax engine to back and correct Claude's tax calculations.

Allica Bank ↗

A UK bank serving small and medium-sized businesses.

Apple Pay ↗

Apple's mobile and online payment service.

Beancount ↗

Plain-text double-entry accounting system.

CME FedWatch Tool ↗

A CME Group tool showing market-implied probabilities of Fed rate changes.

Chase UK ↗

The UK retail bank of J.P. Morgan.

Chaum eCash ↗

David Chaum's blind-signature electronic cash system and its newer revival.

Current Account Switch Service ↗

A UK service that moves direct debits, balances and incoming payments to a new bank account.