Elgg vs Open Social

Elgg is a free, open-source framework for building web applications where people sign in and share information. It can serve as a foundation for campus networks, organizational collaboration platforms, or company communications tools. Hooks and events let plugins extend or change application behavior, while the view system supports custom themes. Granular content access policies can support private networks and intranets; user groups and a file storage API provide building blocks for managing members and their files. Elgg supports on-site and email notifications, as well as RPC web services for external applications and mobile clients. Its listed security features include anti-CSRF validation, XSS filters, HMAC signatures, and password hashing. The project offers documentation, tutorials, an API reference, community discussions, and a repository with more than 1,000 open-source plugins. It is free to download, install, and use. The full package with core plugins is offered under GPLv2; the framework without plugins is offered under MIT. Self-hosting requires a database and a configured cron job for background tasks.

Open Social is a community collaboration platform for organizations connecting and working across their communities. Its suite has six products: Community Management System, Cloud Platform, Gaia AI, Engagement Studio, Connection Hub and Lumina Insights. The Community Management System supports custom roles, permissions and organizational arrangements, including complex, multi-layered structures. Gaia AI assists with workflows, content moderation and advanced search. Connection Hub connects with external systems such as Salesforce and Snowflake, and supports GraphQL, webhooks, Kafka and no-code Zapier connections. An optional Document Collaboration Suite enables real-time co-editing of documents, spreadsheets, presentations and drawings in formats including docx, xlsx, pptx, odf and visio. A branded native app for iOS and Android is also available as an add-on, with push notifications. The core Community Management System is free in the Drupal community; its SaaS subscription adds hosting, other products and professional services. SaaS customers can receive enterprise services, and an on-premise hosting option is described for organizations with infrastructure requirements. The maker identifies Amsterdam as its base and says it is ISO 27001 certified.