Extract text from SSI HTML documents (STML)
To convert STML HTML documents to another format, you need Apache HTTP Server or other Web software.
To convert other file formats to the "Server-Side Scripting File" file type, you need software like Apache HTTP Server or a similar tool.
An .stml file is an SSI HTML File used primarily in legacy web development. It contains standard HTML markup mixed with Server-Side Includes (SSI) directives. These specialized directives instruct the web server to dynamically insert external content - such as headers, footers, or server variables like timestamps - into the page before delivering it to the visitor's browser.
You can easily edit .stml files using standard code editors like Notepad++ or Visual Studio Code. However, to view the fully rendered page exactly as a user would, you must run the file through a local web server environment using software like Apache HTTP Server or Nginx configured to parse SSI.
The major disadvantage of the .stml format is its strict dependency on server-side processing. If you open an .stml file directly in a web browser from your local hard drive, the browser will ignore the SSI directives because they are formatted as HTML comments (e.g., <!--#include virtual="footer.html" -->). This results in an incomplete, broken page layout, making local testing and sharing highly frustrating for non-developers.
To share the raw code structure, it is best to convert .stml to standard HTML or TXT. For modern web migration, developers often convert these files to PHP. Note that converting the file locally only changes the extension; it will not execute the server-side includes unless rendered by a live server.
Because this file relies on external assets located on a specific server, standard online converters fail to render the dynamic elements of .stml files.
Convert.Guru analyzes your STML file, detects the exact format, and lets you read the text inside.
Users also converted HTML and SHTML3 files.
If you want to convert STML file to , you can use Apache HTTP Server or similar software from the "Server-Side Dynamic Web Pages" category. In the File menu, look for Save As… or Export….
To convert files to STML, try Apache HTTP Server or another comparable tool in the "Server-Side Dynamic Web Pages" category.
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 STML converter.