Compare software

Rechnungs-AssistentSolidInvoice
Free

Free and open source under the GPL-3.0-or-later license.

 Freemium

Free to self-host; the hosted service is a monthly subscription with a 14-day trial.

Linux Web, Self-hosted
  • Stores customer and item details for reuse
  • Imports and exports data as CSV
  • Quotes, recurring invoices and automatic reminders
  • Online payments via Stripe and PayPal
  • Designed for German invoicing
  • Available for Linux
  • Self-hosting requires a PHP server setup
  • Focused on invoicing rather than full accounting
Downloadable app Self-hosted, Hosted service
Open source Open source
License: GPL-3.0-or-later License: MIT
Not stated if an account is needed Account needed
Not stated if it works offline Not stated if it works offline

Checked October 8, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.