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Invoice NinjaInvoicePlane
Freemium

Free plan available, with paid plans that carry a 30-day money-back guarantee.

 Free

Free and open source, with no paid tier.

Linux, Web Web, Self-hosted
  • Supports many payment gateways for one-click client payments
  • Recurring invoices and auto-billing
  • Covers quotes, invoices, payments and client records in one place
  • EU-compliant eInvoice support
  • Hosted service requires an account
  • Some features are reserved for paid plans
  • Requires running and securing your own server
  • Project and task management is basic
Downloadable app, Hosted service Self-hosted
Open source Open source
License: AAL License: MIT
Account needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 1, 2026

Checked October 2, 2026

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