Legal Tech's Missing DOCX Editor
Develop native DOCX editing for complex legal documents
After spending countless hours with high volumes of legal docs troubleshooting HTML-based WYSIWYG rich text editors, we decided to Open Source a best in class DOCX experience that integrates seamlessly with Word.
Exquisite formatting
Preserve DOCX formatting 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.

Pair with Word Add-Ins
For agentic and headless workflows
Built for AI and extensibility
Seamlessly export a DOCX with a new redlined clause suggested. Even run SuperDoc 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.

Deliver next gen UX without limits.
Contract Review Software
Document Management Systems
Contract Lifecycle Management and E-Signature
Case Management Systems
Knowledge Management Systems
Litigation Management Systems
Legal Research Software
Solving the most common use cases of rich text editors in legal apps
Built for the most demanding use cases:
Multiplayer editing with confidentiality
Real-time collaboration, even with your Word 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.

Build rich confidential experiences
Custom version history
You can hide one party's side view of comments or annotations to preserve confidentiality - even bring your own permissioning systems.
Explore our Annotate API documentation.

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.

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
