Open source alternatives to SlowBooks-Pro-2026
50 open source Finance apps to use instead, best rated first.
Top picks
- H

Hyperswitch
LaunchA unified payment infrastructure that connects multiple payment processors through a single API integration, enabling global payment processing
- I
Invoiceninja
LaunchInvoice Ninja is a comprehensive invoicing, quote, project, and time-tracking application built with Laravel. Designed to streamline billing and financial management tasks, it caters to freelancers, small businesses, and service professiona
- I

InvoicePlane
LaunchInvoicePlane is a free and open source application to manage your quotes, invoices, payments and customers.
- A

Actual
LaunchActual Budget is a super fast and privacy-focused app for managing your finances. At its heart is the well proven and much loved Envelope Budgeting methodology.
- F

Fincept Terminal
LaunchComprehensive financial data platform offering economic insights, market analysis, and portfolio management tools
- F

Firefly III
LaunchTrack transactions, budgets, and accounts with a double-entry system, multi-currency support, rule engine, and REST API. Fully self-hostable.
More Finance apps
About SlowBooks-Pro-2026
SlowBooks-Pro-2026
Free, source-available accounting: double-entry bookkeeping, invoicing
Free accounting software for Windows, Mac, and Linux. Payroll, inventory, unlimited invoicing, multi-user Server Edition built into the signed installer (no Docker required). No cloud, no subscription. Your books stay on your computer.
- Price
- Free
- Made by
- VonHoltenCodes
- Category
- Finance
- Website
- slowbookspro.com
