Etherpad

Etherpad is an open-source, web-based collaborative text editor that supports real-time multiuser editing and self-hosted deployment for organizations.

• Open-source collaborative text editing platform for browsers
• Real-time multiuser document editing with per-author color highlighting
• Self-hosted deployment model for enterprises, institutions, and teams
• Plugin-based extension architecture for customization and integration
• Application Programming Interface (API) and embedding capabilities for integration into existing web applications

More About Etherpad

Etherpad is an open-source collaborative editing (collaboration software) platform designed for browser-based, real-time editing of plain text documents by multiple users. It is maintained by a community under an open-source governance model and is available for organizations that prefer to deploy collaboration tools on their own infrastructure rather than rely solely on third-party Software-as-a-Service (SaaS) environments.

The core Etherpad server is implemented using JavaScript and runs on Node.js (application runtime), exposing a web-based editor that can be accessed from standard browsers without installing desktop clients. Documents, commonly called pads, update in real time for all connected users through an operational transform style synchronization model, which coordinates concurrent edits so that the shared document remains consistent across sessions.

Etherpad supports user attribution through per-author color highlighting and optional name labels, which many enterprises, education institutions, and project teams use to track contributions during synchronous editing sessions. The platform also includes integrated chat alongside each Predictive Analytics Dashboard (PAD), allowing contextual discussion without leaving the editing environment. Time-slider and revision history features allow users to review and replay changes, which can be useful for audit, training, or documentation workflows.

From an architectural perspective, Etherpad is commonly deployed as a self-hosted web application behind reverse proxies such as Nginx or Apache (web server / reverse proxy). It stores PAD content in a database layer, with support in the ecosystem for engines such as MySQL or other compatible datastores, depending on the chosen configuration. Administrators can configure access control via Hypertext Transfer Protocol (HTTP) authentication, reverse proxy integrations, or plugins that work with external identity and authorization systems.

A plugin architecture (extensibility framework) is central to Etherpad’s positioning. The community maintains many plugins that add capabilities such as formatting options, import and export formats, document management integrations, and UI customizations. This model enables enterprises to adapt Etherpad to specific workflows, from software development documentation to classroom collaboration and internal knowledge sharing, without modifying the core codebase.

Etherpad also offers an HTTP-based API (developer integration) for programmatic PAD creation, management, and user session handling. This API, along with embedding options via iframes or integration components, allows development teams to incorporate collaborative editing directly into portals, intranets, learning management systems, or custom web applications. In marketplace and directory taxonomies, Etherpad aligns with categories such as collaboration software, web-based document editing, developer tools for embedded collaboration, and self-hosted productivity platforms.