An open source web application meant to help manage & create invoices in a simple, straightforward way.
Cost / License
- Free
- Open Source
Platforms
- Online
Spain
EU

Sites and apps similar to BILLmanager include Summit Finance, which is free and open source. Other options are Invoice Ninja, Autumn, FreshBooks and WHMCS. You're spoiled for choice with Invoicing Software like BILLmanager: we list more than 50 alternatives for Windows, Linux, Mac, self-hosting and iPhone.
An open source web application meant to help manage & create invoices in a simple, straightforward way.

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