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The ASP.NET MVC File Upload is a control for uploading one or multiple files, images, documents, audio, video, and other files to a server. It is an improved version of the HTML5 upload control (<input type="file">) with a rich set of features that include multiple file selection, progress bars, auto-uploading, drag and drop, folder (directory) uploading, file validation, and more.

ASP.NET MVC file upload built using AJAX

AJAX file uploader

The ASP.NET MVC File Upload control seamlessly uploads files in the asynchronous mode using the AJAX library.

Upload large files

Manage large file uploads efficiently using chunk upload. Large files are sliced into smaller chunks and uploaded to the server in sequential order in the asynchronous mode.

ASP.NET MVC file upload process large files using chunk upload

ASP.NET MVC file upload with pause, resume, retry, and cancel

Resumable upload

A built-in feature is available to pause, resume, retry, and cancel a file upload. This helps users upload high-resolution images, videos,and other large files safely. Additionally, it provides an option to pause and resume automatically based on server connection.

Multiple file upload

Select multiple files and upload them to a server at the same time. This is useful for uploading images to a gallery and for file sharing applications.

ASP.NET MVC file upload handles multiple files

ASP.NET MVC file upload with drag and drop files

Drag and drop

Upload multiple files by simply dragging them from the file explorer to the drop area (drop zone), which is a more user-friendly way to select and upload multiple files.

Upload images with previews

The ASP.NET MVC File Upload control allows you to upload images and resize images, show an image preview or thumbnail, etc. before uploading them.

ASP.NET MVC image upload with its preview thumbnails

ASP.NET MVC file upload with customized buttons

Custom file upload button

The action buttons of the ASP.NET MVC File Upload control are completely customizable, including its file list, which helps create your own design for the file upload UI.

File types (file extensions)

Upload various file types and limit the file types from client-side, which is mandatory before uploading a file to the web application.

ASP.NET MVC file upload validates file type

ASP.NET MVC file upload restricts file size

File validation (filter)

Add validation to check file size limits with minimum and maximum ranges, number of files required, total size, and MIME type before uploading a file to a server.

Upload folder (directory)

The ASP.NET MVC File Upload control accepts a folder (directory) as a file source for uploading all the files (including subfolders) of the selected folder.

ASP.NET MVC file upload process complete directory

ASP.NET MVC file upload process images from clipboard on paste

Paste image to upload

The ASP.NET MVC File Upload control processes images from the clipboard, also. Simply copy and paste the images to be uploaded to a server.

Delete uploaded files

The ASP.NET MVC File Upload control provides a simple interface to delete the wrongly uploaded files from a server.

ASP.NET MVC file upload removes the uploaded files

Preload uploaded files

Users can configure previously uploaded files from the server. This is useful to view and remove files from the server.


Initiate an automatic upload to upload files immediately upon adding them to the upload queue.

ASP.NET MVC file upload with progress bar

Progress bar

The ASP.NET MVC File Upload control displays a built-in progress bar (progress indicator) with the progress percentage during each file upload. The bar is completely customizable.


Templates are used to customize the default appearance of the uploader. The ASP.NET MVC File Upload control supports File List template and Custom template.


Users can set corresponding translation texts to the static strings used in the ASP.NET MVC File Upload control through the localization library.

ASP.NET MVC file upload displays localized static texts

ASP.NET MVC file upload with right-to-left mode

Right-to-left (RTL)

The ASP.NET MVC File Upload control supports right-to-left rendering, which improves the user experience and accessibility for those who use RTL languages.

Additional parameters

The ASP.NET MVC File Upload control allows you to pass additional parameters along with an upload request as an HTTP header or custom parameters.

Standard HTML forms

The ASP.NET MVC File Uploader control has form support (synchronous mode) to work with native HTML forms.

ASP.NET MVC file upload covers web accessibility

Web accessibility

  • Fully supports WAI-ARIA accessibility, which allows the ASP.NET MVC File Upload control to be accessed by on-screen readers and assistive devices.

  • Follows the WAI-ARIA Best Practices for implementing keyboard interaction.

  • The UI element visuals, such as foreground color, background color, line spacing, text, and images, were designed based on the WCAG 2.0 standard.

ASP.NET MVC file upload works well in touch devices

Touch support

The ASP.NET MVC File Upload control provides the best user experience across phone, tablet, and desktop form factors.


The ASP.NET MVC file uploader control has several built-in themes such as material, bootstrap, fabric (Office 365), and high contrast. Users can customize any one of these built-in themes or create new themes to achieve their own desired look and feel either by simply overriding SASS variables or using our Theme Studio application.

Developer-friendly APIs

Developers can control the appearance and behaviors of the ASP.NET MVC File Upload, including its file list, using a rich set of APIs.

ASP.NET MVC File Upload Code Example

Easily get started with the ASP.NET MVC File Upload using a few simple lines of CSHTML and C# code example as demonstrated below. Also explore our ASP.NET MVC File Upload Example that shows you how to upload files in ASP.NET MVC.

@using Syncfusion.EJ2

@section ControlsSection {
    <div class="col-lg-8 control-section">
        <div class="control_wrapper">
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;

namespace EJ2CoreSampleBrowser.Controllers.TextBoxes
    public class UploaderController : Controller
        public ActionResult DefaultFunctionalities()
            return View();

Other supported frameworks

The File Upload component is also available in Blazor, React, Angular, JavaScript and Vue frameworks. Check out the different File Upload platforms from the links below,


Frequently Asked Questions

  • Extended version of the HTML5 file upload with a progress bar and flexible UI file list.
  • NET MVC multiple-file upload with form support, drag and drop, progress bar, folder upload, and more.
  • Large file upload with pause, resume, retry, and cancel options using chunking.
  • One of the best ASP.NET MVC File Upload in the market that offers feature-rich UI to interact with the software.
  • Completely customizable using templates.
  • Simple configuration and API.
  • Supports all modern browsers.
  • Mobile-touch friendly and responsive.
  • Expansive learning resources such as demos and documentation to learn quickly and get started with ASP.NET MVC File Upload.

You can find our ASP.NET MVC File Upload demo here.

No, this is a commercial product and requires a paid license. However, a free community license is also available for companies and individuals whose organizations have less than $1 million USD in annual gross revenue and five or fewer developers.

A good place to start would be our comprehensive getting started documentation.

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