PHP address-book Projects

egroupware

2 238 9.9 PHP

Web based groupware server written in PHP, forum at https://help.egroupware.org/

Project mention: SOGo: Open-source groupware solution to Share calendars, address books and mails | news.ycombinator.com | 2023-12-21

I hadn't heard of eGroupware before, so linky for others who are similarly curious: https://github.com/EGroupware/egroupware#readme (also GPLv2)

groupoffice

4 169 9.9 PHP

Group Office groupware and CRM
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).