Some test text!

Jun 7 2022

How to View DOCX in a React Web App

by Andrey Safonov

Looking for a React DOCX viewer? This blog will reveal how to view Microsoft Office documents in a React file viewer app using

. This includes Microsoft Word, Excel, and PowerPoint formats and legacy formats like DOC, XLS, and PPT.

In a few lines of code, we'll show how you can view files client-side, with no server dependencies and without Microsoft Office licenses or third-party software. PDFTron’s WebViewer directly converts `DOCX`, `XLSX`, and `PPTX` files using JavaScript and renders them for viewing dynamically.

Try our

to test WebViewer with your files.

Check out the full React doc viewer demo on our

. And visit the documentation for the
get-started steps
and information on additional functionality.

Additional Functionality

WebViewer supports more than simply viewing Office documents, offering

mail merge
on DOCX templates,
text editing
page manipulation
form filling and creation
, and much more.

WebViewer also supports formats like PDF, images,

, and

How to View DOCX in a React Web App

Step 1 - Get Started

Once the React doc viewer example is up and running,

the URL, blob, file path, or arrayBuffer to `initialDoc` property in WebViewer constructor.

Code Example for React Document Viewer

  initialDoc: '',
}, document.getElementById('viewer'));

You can also call `loadDocument` with the same parameters.

  .then(instance => {
    instance.UI.loadDocument('', { filename: 'myfile.docx' });

Step 2 - Run the App

You can now run the app via 'npm start'.

To view the npm React file viewer docx app, navigate to http://localhost:3000/. The app automatically reloads if you change any of the source files.

A Customizable UI

If you want to configure the UI, WebViewer comes with a rich set of APIs. To get an idea of the vast array of possibilities, check out the

. You can also
create your own UI
by referencing our open-source
UI code


Adding Office document viewing and collaboration to your native npm React file browser app is straightforward with PDFTron’s WebViewer, a

. Find the source code for this blog post on our

You can also check out other capabilities on our

If you have any questions about PDFTron’s SDK or WebViewer, please


Related articles


How to Build a Flutter PDF Viewer

This guide shows you your options to build a Flutter PDF viewer and your potential best path forward towards a professional solution.


How to Embed PDF Files or a PDF Viewer in an HTML Website

This blog discusses the three options for embedding PDF files or a PDF viewer in a website that are available to you, starting with the simplest and ending with the PDF viewing bells and whistles.


How to Extract Text from PDFs Using Python

A tutorial on how to extract text from a PDF using Python and the PDFTron SDK for machine learning.


Head of Product

First a developer then a solution engineer. Now a product team leader and dev experience advocate.

Related Products

Share this post

Upcoming Webinar: PDFTron SDK Tech Review | Nov 29, 2022 at 2 pm ET


The Platform


© 2022 PDFTron Systems Inc. All rights reserved.


Terms of Use