Top Open‑Source Real‑Time Collaborative Editors You Should Try

Collaborative editing enables multiple users to edit the same document simultaneously, improving transparency, coordination, and efficiency.

Hackpad

Hackpad is an open‑source web‑based real‑time wiki built on Etherpad. It provides colored author attribution, image and list insertion, and syntax highlighting for many programming languages.

Wiki‑style feature set

Real‑time or asynchronous note sharing

Fine‑grained privacy controls for individuals, teams, or public audiences

Video embedding from popular sites

Table support

Syntax highlighting for C, C#, CSS, CoffeeScript, Java, HTML, etc.

Website: https://hackpad.com

Source code: https://github.com/dropbox/hackpad

Etherpad

Etherpad is a web‑based open‑source real‑time editor that allows multiple authors to edit a plain‑text document, comment, and chat via a built‑in channel.

Spartan interface designed for speed

Simple text formatting

“Slide timeline” for browsing document history

Export to plain text, PDF, Word, OpenDocument, HTML

Automatic periodic saving

Highly customizable with plugins

Hundreds of extensions (email alerts, pad management, authentication)

Accessibility features

CLI and Node.js integration

Website: https://etherpad.org

Source code: https://github.com/ether/etherpad-lite

Firepad

Firepad is an open‑source collaborative text editor designed to be embedded in larger web applications. It uses Firebase as the backend and requires no server‑side code.

Full‑featured editor with conflict resolution and cursor synchronization

Supports multiple text and code formats

Cursor position sharing

Undo/redo

Syntax highlighting

User attributes and online presence detection

Version checkpoints

Image insertion

Extensible via API

Works in Chrome, Safari, Opera 11+, IE 8+, Firefox 3.6+

Website: https://www.firepad.io

Source code: https://github.com/firebase/firepad

ownCloud Documents

ownCloud Documents is an ownCloud app that enables collaborative editing of office documents (ODT, DOC) for up to five users directly in the browser.

Simultaneous editing by multiple users

Create and upload documents within ownCloud

Share via public links or internal ownCloud sharing

Versioning, local sync, encryption, and file recovery

Transparent conversion of Microsoft Word formats

Website: https://owncloud.org

Source code: https://github.com/owncloud/documents

Gobby

Gobby is a collaborative editor that supports multiple users editing several documents in a single session, with chat and per‑user color highlighting.

GTK‑based syntax highlighting via GtkSourceView

Real‑time, lock‑free editing with encrypted connections (including perfect forward secrecy)

Integrated group chat

Local undo that does not affect remote users

Display of remote cursors and selections

Configurable tab width, auto‑indent, Unicode support

Advanced find/replace

Internationalization

Website: https://gobby.github.io

Source code: https://github.com/gobby

ONLYOFFICE

ONLYOFFICE (formerly Teamlab Office) is a cloud‑based office suite that integrates document, spreadsheet, and presentation editors with CRM, project management, and communication tools.

Desktop‑level performance for large documents, paging, and zooming

Document sharing in view or edit mode

Embedded document editing

Real‑time collaborative editing, commenting, and chat

Mobile apps

Gantt chart, time management, invoicing, calendar

Permission management and ACLs

Integration with Google Drive, Box, OneDrive, Dropbox, ownCloud

Supports DOC, DOCX, ODT, RTF, TXT, XLS, XLSX, ODS, CSV, PPTX, PPT, ODP

Website: https://www.onlyoffice.com

Source code: https://github.com/ONLYOFFICE

Code example

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