CSHTML File Extension
ASP.NET Razor Web Page
What is a CSHTML file?
The CSHTML file extension is linked to ASP.NET Razor Web Page and belongs to the Web Files category, which includes 283 files.
The ASP.NET Razor Web Page (CSHTML) was developed by Microsoft, which created file format and 242 programs to work with them.
CSHTML files are compatible with various operating systems, including Linux, Mac OS and Windows. To open a CSHTML file, you can choose from 15 programs such as Microsoft Visual Studio, TextEdit and Notepad++.
Programs that support CSHTML files
Windows
How to open a CSHTML file?
If you cannot open a CSHTML file, it is most often due to missing software. Select a program from the list according to your operating system. Then go to the official website of the program developer, download it, and install it on your device.
Microsoft Visual Studio, TextEdit and Notepad++ are recognized as the most popular software solutions for dealing with CSHTML files. To set up the newest version of Notepad++ on your device, simply go to the official Notepad++ Team website. There you can download the edition compatible with every operating system.
Once installed, Notepad++ will be set as the default program, and CSHTML files will open automatically.
Set Notepad++ to open CSHTML by default
Setting a default program by file type in Windows
- Right click on your CSHTML file, then select "Open with" and click "Choose another application";
- Find the Notepad++ application in the pop-up window and select it as your preferred program;
- Select the "Always use this application" check box and click "OK" to save your selection as the default application for opening CSHTML files.
Change default apps on Mac
- Right-click or use Control + Left-click on the desired CSHTML file to access the file’s context menu;
- Select "Open in application" and click "Other";
- At the bottom of the window, find the "Enable" menu, where "Recommended Programs" is already selected by default;
- Within this menu, select "All Programs" and then locate Notepad++. Check the box next to "Always open in app" to set it as the default program.
How to edit a CSHTML file?
Editing CSHTML files requires installing professional software that lets you open and edit web files. Online editors have more limitations compared to dedicated ASP.NET Razor Web Page programs.
Best CSHTML editors in 2026
Considering the mentioned criteria, we have compiled a list of CSHTML editors that may suit your needs.
| CSHTML Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Windows Notepad | Microsoft | Windows | 4.6 out of 5 (44 reviews) |
| Microsoft WebMatrix | Microsoft | Windows | 4.5 out of 5 (44 reviews) |
| Notepad++ | Notepad++ Team | Windows | 4.4 out of 5 (44 reviews) |
| Gedit | GNOME | Linux | 4.2 out of 5 (44 reviews) |
| Microsoft Visual Studio | Microsoft | Windows, Mac OS, Linux | 4.2 out of 5 (41 review) |
| TextEdit | Apple | Mac OS | 4.2 out of 5 (45 reviews) |
| Atom | - | Windows, Mac OS, Linux | 4.1 out of 5 (43 reviews) |
| Sublime Text | Sublime HQ Pty | Windows, Mac OS, Linux | 4.1 out of 5 (48 reviews) |
Easy CSHTML Troubleshooting
Certain problems with CSHTML files can be conveniently fixed with small software tweaks. Here are some helpful tips to address them.
What are the steps to repair a damaged CSHTML file?
Open the corrupted CSHTML file in a recovery program and select the "Repair" menu item. Please be patient while the recovery process completes, which will automatically restore the damaged web files.
How do I know if my CSHTML file is corrupted?
Corrupted CSHTML web files may show the following signs:
- Attempts to open the file result in errors or failed results;
- Editing the archive in Microsoft Visual Studio is accompanied by slow performance or delays;
- The file causes Notepad++ or other programs to hang or crash during operation;
- Unexplained increase in CSHTML file size;
- Error messages appear while working with the file;
What are the reasons behind Notepad++ crash?
The likely cause of Notepad++ crashing is lack of software updates. Install the latest updates available for Notepad++ Team products.
Restarting your computer is often an effective solution to resolve various common problems. Therefore, it is recommended to do so before making any changes to the software configuration.