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Active Server Page Extended ASP.NET script
File type: Source code and script file, Internet related file
An aspx file extension is associated with Active Server Page Extended format used by Internet Information Services (IIS) web server with server-side scripting language ASP.NET used to generate websites dynamically. Generated output from the .aspx page in your browser is a standard HTML page.
File type category:
Source code and script file
Internet related file
Date updated: June 27, 2025
The aspx file extension is associated with ASP.NET dynamic web pages, also known as web forms, based on the Microsoft ASP.NET programming framework.
Internet servers generate these pages. The ASP.NET code is compiled and interpreted by the server, then sent to a user web browser and displayed as a web page.
ASP.NET pages are the primary building block for web application development. The Web forms are contained in files with the .aspx file extension. These files typically contain static (X)HTML markup and markup defining server-side Web Controls and User Controls where the developers place all the required static and dynamic content for the web page.
The native application that uses ASPX script files is the ASP.NET server (mainly Microsoft IIS - Internet Information Services).
ASPX script files can be written in Microsoft Visual Studio, WebMatrix, or other development tools, and web pages that are written in ASP.NET and using ASP.NET can be viewed in any Internet browser such as Microsoft Edge, Google Chrome, Firefox, Opera, or Safari.
Use ASP.NET development tools to open and edit the *.aspx files or the entire ASP.NET project (Visual Studio, WebMatrix, etc.)
You can also use any simple text editor to view the contents of ASP.NET source code.
ASP.NET script is the simple text file with ASP.NET source code. ASPX file cannot be simply converted to another format, but it can be edited in any text editor or word processor.
Software applications that can open aspx files:
Microsoft Windows
Multiplatform
Software applications that can edit aspx files:
Microsoft Windows
Multiplatform
Software capable of saving aspx files:
Microsoft Windows
Multiplatform
Programs for viewing aspx files:
Microsoft Windows
Software apps that create aspx files:
Microsoft Windows
Multiplatform
Software apps that print aspx files:
Microsoft Windows
Multiplatform
Software applications that handle other tasks involving aspx files:
Microsoft Windows
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