crm

Open-source CRM focused on invoicing with ZUGFeRD e-invoice format support.

Webfree

This open-source CRM, built by billingcat, focuses on invoicing with support for the ZUGFeRD electronic invoice standard used in Germany. It is aimed at small businesses that want customer relationship management and compliant e-invoicing in one self-hosted system, written in Go.

Website

Full match profile

Behind the summary, Matchbox keeps a richer profile of crm - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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