| Title | CMS Category |
|---|---|
| Pixie | Traditional CMS |
| Piwigo | Gallery Software |
| Piranha CMS | Traditional CMS Headless CMS |
| Pipedrive | CRM Solutions |
| Pico | Flat CMS |
| PHPVibe | Specialized CMS |
| phpFox | Social Network Solutions |
| phpCollab | Groupware |
| phpBB | Forum Software |
| PHP Melody | Gallery Software |
| PhotoPrism | Gallery Software |
| Percussion | Enterprise Solutions |
| Perch | Traditional CMS |
| Payload | Headless CMS App Builders Ecommerce DAM Software |
| Passion.io | App Builders E-Learning |
| Paradiso | E-Learning |
| Pangea CMS | Specialized CMS |
| Oxwall | Social Network Solutions |
| osTicket | CRM Solutions |
| OSSN | Social Network Solutions |