A Professional Word
Document Online Editor

Over 1,000,000 Developers Are Already Using Our Libraries
To Create Their Amazing Applications.

Spire.Cloud.Word is a JavaScript word processor which wraps document editor, toolbar, status bar and properties pane in a single component. Integrate it into your website or cloud application, and you'll be able to create, edit, convert, print, view and save MS Word compatible documents in a HTML5 browser on Windows, Linux and Mac.

Spire.Cloud.Word can perform a variety range of operations on Word documents, such as editing text, formatting contents, password protecting documents, finding and replacing text, adding headers and footers, creating tables, adding form fields, inserting bookmarks, adding watermarks, adding hyperlinks, adding comments, inserting images, etc. Moreover, it supports saving Word to PDF, PDF/A, ODT, DOTX, OTT, RTF, or HTML as an output.

Working together with Spire.Doc for .NET, you can manipulate Word documents from the server-end using C# or VB.NET code, and then send the results to a browser for further editing in a visual manner.


Powerful Toolset, Multichannel Support

  • Create Word Online

  • Fill Templates

  • Convert Formats

  • Protect, Encrypt, Decrypt Documents

  • Print Documents

  • Add Watermarks

  • Create and Update Tables

  • Merge and Split Word Documents

  • Add hyperlinks and Bookmarks

  • Digital Signatures

  • Collaborate on Word

  • Restrict Edit Area


Document Viewing

Spire.Cloud.Word is not only a document editor, but also a document viewer. Depending on the application you’re developing, you can choose to view MS Word files in a full screen mode, in an embedded view mode or in a mobile view mode.

Document Editing

Spire.Cloud.Word offers the ability to create a Word document from scratch as well as editing existing ones. Almost all document elements are supported, including sections, pages, headers & footers, paragraphs, lists, tables, hyperlinks, bookmarks, Word Arts, comments, images, textboxes, formulas, and table of contents.

Collaborative Editing in Real Time

Multiple users can work together on the same document over the internet. The Fast editing mode enables users to see the changes made in document in real time; the Strick editing mode will lock the paragraph one user is editing and sync the changes after “Save” button is clicked.

Document Comparison

Compare two versions of a document in seconds to identify changes made by different contributors. The differences could include minor formatting adjustments, such as font or spacing changes, or more significant modifications, such as the addition or omission of words, sentences, clauses, or paragraphs.

File Format Conversion

After the edits are completed, you can convert your Word documents to PDF, PDF/A, ODT, DOTX, OTT, RTF, or HTML without compromising the quality, formatting and consistency of the original document.


User Friendly UI

Spire.Cloud.Word provides MS Word inspired user interfaces. One can easily get familiar with it if he or she already has a good command of MS Word.

Easy Integration

Spire.Cloud.Word provides an auto installer, enabling users to install the document editor, configure environment and bind service with just a few clicks.

High Performance

All the word processing features are written in JavaScript that runs completely on client-side, which boosts editing efficiency a lot.

Server-Side Processing

Create Mail-Merge reports, fill templates with data pulled from a database, and do a lot more Word automation with Spire.Doc library without any user interface.


Free Trials for All Progress Solutions

  • Charts
  • Headers and Footers
  • Images and Shapes
  • Paragraph Styles and Formatting
  • Tables
  • Textboxes
  • Watermarks