Click the "Select File" button above, and choose your ASCX file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert ASCX to another file type
To convert your ASCX file to another format, you need Visual Studio or other Web software.
Convert a file to ASCX
To convert other file formats to the "ASP.NET User Control" file type, you need software like Visual Studio or a similar tool.
About ASCX files
An .ASCX file is an ASP.NET User Control, a format used by the legacy Microsoft ASP.NET Web Forms framework to define reusable web components (like headers, navigation bars, or login forms). These files contain a mix of HTML markup and server-side logic (usually C# or VB.NET). Because .ASCX files are partial page segments, they cannot be executed or viewed directly in a web browser; they must be embedded within a parent ASPX page and processed by a web server like IIS. This proprietary dependency makes them difficult to preview without a full development environment like Visual Studio. Users often need to convert .ASCX files to TXT or PDF to document code, perform static analysis, or archive legacy systems without maintaining the original server infrastructure. For web modernization, these files are typically manually refactored into Razor Views (CSHTML) or Blazor components.
Convert.Guru analyzes your ASCX file, detects the exact format, and lets you read the text inside.
Users also converted ACSX, CS, ASPX, ASHX and AXD files.
FAQ
If you want to convert ASCX file to ASPX, HTML, HTM, CSS, JS, PHP, ASP, JSP, JSPX, PY, RB or PL, you can use Visual Studio or similar software from the "Reusable Web Component" category. In the File menu, look for Save As… or Export….
To convert RSS, CSS, CGI, SITEMAP, PL, WEBMANIFEST, JSON, JS, XML, HTML, ICO or HTM files to ASCX, try Visual Studio or another comparable tool in the "Reusable Web Component" category.
The ASCX Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our ASCX converter.