Https://civicrm.org/ [this works with a cms like drupal, wordpress, joomla etc]. - Source: Reddit / 10 months ago
So far I found Chatwoot, CiviCRM, Corteza, ERPNext, EspoCRM, Dolibarr, Odoo, OroCRM, Mautic, SuiteCRM and X2CRM and there are probably even much more available. It seems that Odoo and ERPNext are huge but also very flexible (with many extensions available). - Source: Reddit / about 1 year ago
If you are already using wordpress, you may also want to look at CiviCRM [https://civicrm.org/] for managing members etc. It is used by non-profit orgs. - Source: Reddit / about 1 year ago
There are actually high quality free software replacements for online sales. An example is civicrm.org. - Source: Reddit / about 1 year ago
I'm surprised that CiviCRM  is not listed in the "Open Source CRM Alternatives" section. I think it should be.  https://civicrm.org/. - Source: Hacker News / over 1 year ago
CiviCRM can handle the nonprofit membership part of that system. - Source: Reddit / over 1 year ago
Is CiviCRM an option for you? https://civicrm.org Sits on top of Drupal or WordPress and ticks all the other boxes I think, but could run on internal webserver. - Source: Reddit / almost 2 years ago
Try looking at [Kindful]https://kindful.com) , Beacon, or if you want a free option, CiviCRM. - Source: Reddit / almost 2 years ago
Do you know an article comparing CiviCRM to other products?
Suggest a link to a post with product alternatives.