SolidInvoice is a simple open source invoicing application aimed to help small businesses and freelancers manage their day-to-day billing.
It's a feature rich elegant online application, available as a cloud solution to ensure that you can always get paid on time.


Client Management

Capture all your client information in an easy to use client management interface.

Quoting and Estimates

Send quotes to your clients and convert quotes into invoices.

Send Invoices

Send invoices and keep balances up to date to know exactly how much income you should receive.

Online Payments

Receive online payments through a number of different payment gateways.

Recurring Invoices

Send recurring invoices on a flexible schedule that matches your business.

Multiple Currencies

Multiple currency support means you can bill your client in any currency that they prefer.

Powerful API

A powerful and flexible API makes integration into any other service so much easier.

Open Source

Free and open source software means you can customise SolidInvoice as much as you want to fit your exact needs.

Accept online payments
through a variety of gateways

Payment integration makes it easy for your clients to pay invoices. Receive payments through a variety of gateways

  • Offline Payments
    (Cash / Credit / Bank Transfer)
  • PayPal Express
  • PayPal Pro
  • Stripe Checkout
  • Stripe JS
  • Klarna Invoice
  • Klarna Checkout
  • Be2bill Offsite
  • Be2bill Direct
  • AuthorizeNET AIM
  • Payex