ASP.NET Core DOCX Editor
Add Powerful DOCX Editing to Your Web Apps
No credit card required.
- Authentic WYSIWYG Word experience
- Core editing in-browser
- Built with a security-focused design
Trusted by the world’s leading companies
Why choose our ASP.NET Core DOCX Editor?
Experience secure, native DOCX editing directly within your web application—eliminating the need to switch between Microsoft Word, Google Docs, or deal with version control issues. Our ASP.NET Core DOCX Editor offers real-time collaboration, intuitive WYSIWYG editing, and enterprise-level performance, all while ensuring robust data security. It’s trusted to streamline document workflows by 80% of Fortune 500 companies.
Explore full-featured Word editing in real time. Upload your DOCX file, use track changes, insert comments, format sections, and export your work as a Word document.
Enterprise-ready document editing power
Secure browser-based editing
With our ASP.NET Core DOCX Editor, you can perform selective editing directly on the client side, ensuring data flow remains secure and privacy standards are met. Sensitive data stays local unless backend integration is intentionally enabled. Implement detailed editing permissions and build secure, fillable forms to maintain full document governance—perfect for privacy-driven industries such as legal, healthcare, education, and finance.
- No third-party data exposure
- Fully compliant with stringent standards such as HIPAA, GDPR, and SOC 2.
True WYSIWYG experience
Enjoy a truly accurate WYSIWYG (what you see is what you get) editing environment, with exceptional DOCX fidelity that ensures your final output matches what you see during editing. This guarantees consistent formatting and styling across different Word processors, eliminating layout shifts and maintaining professional document standards.
- Precise rendering of tables, images, and styles
- Reliable output across formats like DOCX and PDF
- Advanced layout features including margins, columns, and page breaks
Lightning-fast word editing
Engineered for speed and responsiveness, our Word Document Editor offers a smooth, high-performance experience—even when working with large, complex documents. Unlike other ASP.NET Core editors that struggle with files over 500 pages, our optimized architecture ensures lag-free editing, boosting productivity and user satisfaction.
- Smart memory management to prevent browser crashes
- Progressive loading for immediate interaction
- Responsive UI powered by background processing
Real-time document collaboration
Collaborate seamlessly with multiple users on the same document in real time—seeing edits as they happen. This boosts team productivity by removing the need to wait for others to finish their work.
- Live cursors show each user’s position
- User presence indicator
- Track and review changes with accept, reject, or filter edits
- Comments with user tagging, easy navigation, and removal
@using Syncfusion.EJ2;
@section ControlsSection{
<div class="control-section">
<ejs-documenteditorcontainer id="container" enableToolbar=true toolbarMode="Ribbon" height="590px" serviceUrl=”https://document.syncfusion.com/web-services/docx-editor/api/documenteditor/”></ejs-documenteditorcontainer>
</div>
}
<script>
ej.documenteditor.DocumentEditorContainer.Inject(ej.documenteditor.Toolbar, ej.documenteditor.Ribbon);
</script>Compatible with all major UI frameworks
Easily integrate a full-featured Word Document Editor with minimal code. Our solution integrates easily with every major framework, delivering consistent performance across your tech stack.
- Native support for React, Angular, Vue, and Blazor
- Unified API across all supported frameworks
- Comprehensive documentation with examples tailored to each framework
Robust document features
Design clean, professional documents complete with rich text formatting, tables, images, and form fields.
Our ASP.NET Core DOCX Editor includes all the key components needed to create professional-grade documents—mirroring the capabilities of Microsoft Word.
Rich text formatting with customizable fonts, styles, and colors
Advanced tables with merged cells and custom borders
Images with positioning controls
Headers, footers, and automatic page numbering
Table of contents generation
Form fields for data collection
Export your documents in a variety of formats to support any workflow need:
DOCX – The standard format for editable content
PDF – Ideal for secure sharing and long-term storage
HTML – Perfect for embedding and publishing on the web
RTF – Supports legacy systems and older platforms
TXT – For extracting clean, plain text
Design dynamic DOCX templates directly within your web application using input fields, drop-downs, checkboxes, and more. These templates allow users to enter or select information right inside the document—without leaving the browser. Perfect for generating documents like employment contracts, insurance forms, onboarding checklists, medical intake records, and government applications.
Powerful document automation
Generate, customize, and secure documents at scale—right within your web application. Our editor includes a comprehensive set of automation tools to simplify document workflows, from dynamically populating templates to bulk generation via mail merge, all while maintaining secure editing capabilities.
Template-based generation
Easily populate user-uploaded DOCX templates with live data by binding information from forms, APIs, or databases. Users can preview the generated content, make edits as needed, and export the final document within the browser.
Mail merge at scale
Upload a dataset to automatically generate personalized documents in bulk. Each record produces a custom version, which can be previewed and exported together—ideal for HR letters, certificates, and customer communication.
Secure & control DOCX editing
Maintain document integrity by restricting edits to specific sections of a DOCX template. Only designated fields remain editable, ensuring protection against unauthorized changes during automated or manual workflows.
Accessibility and global readiness
Fully accessible UI
WCAG-compliant, keyboard navigation, high-contrast modes, and ARIA labels ensure inclusivity for users with disabilities.
Multilingual support
Comprehensive localization options and RTL support—the UI can be instantly switched between popular world languages.
Screen reader compatibility
All document content and controls are accessible to screen readers.
Seamless integration & customization
Designed with developers in mind, the ASP.NET Core DOCX Editor is easy to integrate, highly customizable, and built to scale with your application.
- Store documents locally in the browser or in the cloud with built-in support for Azure Blob Storage and Amazon S3.
- Fully customizable UI with support for themes, localization, and right-to-left (RTL) layouts.
- Detailed documentation and enterprise-grade support for smooth onboarding.
Tailored for industry-specific workflows
Our Word document editor is designed to meet the unique requirements of professionals across industries such as legal, healthcare, finance, and more—enabling precise document creation, review, and collaboration while maintaining full compliance with regulatory standards.
No credit card required.
Legal and contracts
Legal professionals can securely collaborate on contracts and proposals online, using redlining, version comparison, and change tracking to maintain clarity and transparency.
Healthcare
Medical teams can safely create and update clinical notes and reports while maintaining HIPAA compliance. The editor supports offline and high-security environments for sensitive healthcare data.
Finance
Finance departments can generate and export invoices, statements, and reports in DOCX or PDF formats with precision and compliance, accelerating approval processes and ensuring data accuracy.
Education
Educators and students can collaborate on DOCX documents in real time with comments and version tracking. Schools can also produce well-structured documents such as certificates, lesson plans, and more.
Discover Why Developers Choose Syncfusion
These real-time stories highlight the impact of our DOCX Editor
The best way to demonstrate our commitment is through the experiences and feedback from developers who rely on it every day.
Unlimited possibilities with one powerful editor
From automating contracts and grading exams to building form-driven applications, our ASP.NET Core Word document editor is built to handle it all. Join over one million developers who’ve upgraded to enterprise-grade document processing and discover why Syncfusion consistently leads in performance benchmarks.
No credit card required.
DOCX Editor FAQs
If you’re new to the DOCX Editor or have questions, our FAQs will help you explore its features and capabilities.
Frequently Asked Questions
What is an ASP.NET Core DOCX Editor?
ASP.NET Core DOCX Editor is a Word document editing component designed for ASP.NET Core applications that allows you to create, view, and edit Microsoft Word (.DOCX) files directly in the browser. It delivers a full range of word-processing capabilities for building modern document-editing interfaces.
What is a DOCX file and how do I open it?
A DOCX file is the standard document format used by Microsoft Word for text, images, tables, and formatting. You can open DOCX files using web-based editors like Syncfusion’s DOCX Editor or desktop apps like Microsoft Word.
Can I use the ASP.NET Core DOCX Editor for advanced formatting?
Absolutely, the ASP.NET Core DOCX Editor supports advanced formatting, including text styles, tables, images, lists, hyperlinks, headers, footers, section breaks, and more.
How secure is my document when using the ASP.NET Core DOCX Editor?
Syncfusion’s ASP.NET Core DOCX Editor supports both client-side and server-side operations. Advanced features require server-side processing, but you can deploy server-side components on your own infrastructure to keep documents secure.
Why won’t my word document load in the ASP.NET Core DOCX Editor?
Loading issues can result from unsupported formats or file corruption. Ensure your file is DOCX and not damaged. If issues continue, check the troubleshooting section.
Does the Syncfusion ASP.NET Core DOCX Editor support native DOCX editing, and how does this improve security?
The editor provides secure DOCX editing by converting DOCX files to SFDT format for client-side editing. While opening DOCX files requires server-side processing, you can deploy these components on your own infrastructure, ensuring your documents never leave your controlled environment.
What file formats are supported for opening, editing, and saving documents in DOCX Editor?
You can open and save SFDT format natively client-side. Opening DOCX files requires server-side processing, while saving DOCX is client-side.
What file types does the ASP.NET Core DOCX Editor support?
Our ASP.NET Core DOCX Editor supports a broad range of file formats for import, editing, and export. The primary supported file types include:
| Operation | Supported File Types |
|---|---|
| Import/Open | DOCX, DOC, DOTX, DOT, DOCM, DOTM, RTF, SFDT, TXT, XML, HTML |
| Export/Save | DOCX, SFDT, TXT, DOTX |
| Additional Convert/Export* | PDF, HTML, WordML, RTF, and others (may require server-side services) |
- SFDT is Syncfusion’s own format for seamless client-side editing and storage.
- Exporting as DOCX and importing TXT available in client-side, whereas other conversions might require server-side processing for some workflows.
What is a web-based ASP.NET Core DOCX Editor?
A web-based ASP.NET Core DOCX Editor is an online editing component that enables users to create and modify Word documents within web applications, without relying on desktop software such as Microsoft Word.
Does the ASP.NET Core DOCX editor support real-time collaboration?
Yes, Syncfusion ASP.NET Core DOCX Editor offers collaborative editing through features like Track Changes, Comments, and revision support, enabling multiple users to review and work on the same document.
Will my original Word document formatting be retained in DOCX Editor?
Yes, the Syncfusion ASP.NET Core DOCX Editor ensures that all original formatting, layout, tables, and styles are preserved when you open, edit, and save DOCX files.
Can I export my DOCX document as a PDF?
Yes, you can export your document to PDF with a built-in export feature, maintaining all formatting and layout.
What is WYSIWYG word editing in ASP.NET Core DOCX Editor?
WYSIWYG (What You See Is What You Get) means you see your document as it will appear when edited, printed or shared; all formatting and layout changes are displayed instantly in the editor.
Does Syncfusion ASP.NET Core DOCX Editor require server-side or third-party dependencies?
Basic text editing is client-side, but some editing features require server-side processing, including paste with formatting, spell check, document protection, mail merge, and complex format conversions.
How do I integrate and customize the Syncfusion ASP.NET Core DOCX Editor in my application?
You can easily embed the editor in your web app and customize toolbars, menus, and features using robust APIs and extensive documentation.
Can Syncfusion ASP.NET Core DOCX Editor be deployed in cloud environments?
Yes, ASP.NET Core DOCX Editor supports deployment on major cloud platforms including Azure, AWS, Google Cloud, and other cloud providers.
Resources
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