Honorable mention
Open-source CRM tailored for churches and congregations.
crmnonprofit
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8 tools match your filters
Honorable mention
CRM for customers, tasks, and appointments.
crmlaravel
Honorable mention
Ruby on Rails CRM with leads, opportunities, and campaigns.
crmrails
Also strong
Enterprise-ready open CRM forked from SugarCRM community lineage.
crmsales
Honorable mention
Modern open CRM with Notion-like UX for contacts and pipelines.
crmmodern-ui
Also strong
ERP and CRM module suite for SMEs (invoices, stock, agenda).
erpcrmphp
Also strong
Modular business apps for CRM, inventory, accounting, and websites.
erpcrmpython
Also strong
Customer engagement suite: chat, email, and campaigns (Intercom/Zendesk class).
helpdeskchatcrm