Ed Tech's Missing DOCX Editor
Develop native DOCX experiences for complex Essays
After spending countless hours with high volumes of documents troubleshooting HTML-based WYSIWYG rich text editors, we decided to Open Source a best in class DOCX experience that integrates seamlessly with Word.
Multiplayer editing with confidentiality
Real-time collaboration, even with your add-in
Enable multi-user support inside DOCX, even on the same line inside your app. Our real-time collaborative editing is easy to implement using Node.js or Y.js.
Read more about our Collaboration APIs.

Exquisite formatting
Preserve your DOCX on import and export
SuperDoc doesn't alter the structure of the original document - we open the DOCX in your application- rather than converting to HTML then back again to deliver a closer to Word like experience on the web. This lets your users take advantage of advanced formatting and for you to turn their document complexity into a competitive advantage..

Proudly built on ProseMirror
Implement your own toolbars and design
Built with extensibility from the ground up, our modular interface makes it easy to extend, remove or customize your own sophisticated rich text editor experience. Create to your own exacting design standards, imagine your own toolbars and implement your own API's on top.
Explore our extensibility in our documentation and see how to customize your own toolbar.

Deliver a next gen ed tech UX that looks and feels like you made it.
Student Information Systems
Corporate Training Platforms
Research Software
LLM's, AI agents, and NLP systems
Learning Management Systems
Educational Content Management
Assessment and Grading Systems
Alongside many other industries who require high quality formatting...
Solving the most common use cases of rich text editors in educational apps...
...with deep functionality for the most demanding use cases:
For agentic and headless workflows
Works seamlessly with in-house AI tools and assistants
We built with AI in mind, great for exporting a DOCX with new redlined changes or suggestions to an essay. Even run it headlessly without a UX to deliver DOCX via email or as an RAG artifact output. Bring great formatting and extend your product to where your users live.
Explore our Export Functionality and check out our Agentic Redlining in Slack Demo.

Build rich confidential experiences
Customizable version history for collaboration
You can split work between team mates or help make smarter grading decisions—for example, having a TA ask questions about a professor's views on something. You can control the viewing of comments or annotations to preserve confidentiality, and even integrate your own permission systems.
Explore our Annotate API documentation.

Built for scale
Enterprise Ready
We provide our largest customers with roadmap prioritization requests, custom new features, custom formatting reviews and styling request. We also offer dedicated onboarding and engineering support. Even a dedicated Slack to troubleshoot challenging documents in real time as needed.
Explore our Enterprise Plans
