If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .ashx

1 extension(s) and 0 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .ashx file?
  • Which program can create the .ashx file?
  • Where can you find a description of the .ashx format?
  • What can convert .ashx files to a different format?
  • Which MIME-type is associated with the .ashx extension?
ASP.NET HTTP Handler .ashx file icon


The ASHX file is an ASP.NET HTTP Handler. An ASP.NET HTTP handler is the process (frequently referred to as the "endpoint") that runs in response to a request made to an ASP.NET Web application. ASP.NET was first released in January 2002 with version 1.0 of the .NET Framework, and is the successor to Microsoft's Active Server Pages (ASP) technology. (ASP is the server-side execution environment in Microsoft Internet Information Server that enables you to run scripts on the server.)
Category: Development files
Program name: -
Mime-type: text/plain
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
.asbx ASP.NET BridgeHandler Data
.asax ASP.NET Application
.asp Active Server Page
.mod PHP Module
.cfc ColdFusion Component File

Other types of files may also use the .ashx file extension. If you have helpful information about .ashx extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

.asx Advanced Stream Redirector
.ahx AHX Tracker Music Module
.asmx ASP.NET Web Service
.shx ArcView Shape Index
.asbx ASP.NET BridgeHandler Data
.ash KoLmafia ASH Script

The .ashx filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

shx (1), astx (1), ash (1), ahx (1), asx (1), asmx (1), asbx (1)

Can't open a .ashx file?

If you want to open a .ashx file on your computer, you just need to have the appropriate program installed. If the .ashx association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.ashx

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2016/2019/2022, Windows 7, Windows 8, Windows 10, Windows 11, Linux, Mac OS X, macOS, iOS, Android