.TS file extension
To open .TS files on Windows, right-click the .TS file and choose Open with.
.TS files are TypeScript files, a superset of JavaScript. Open them with a code editor like Visual Studio Code or Sublime Text.
Last updated: March 19, 2026 · Reviewed by Julian Stricker
Open on your device
Choose your operating system for a dedicated step-by-step opening guide.
How to open .TS files
Use these platform-specific instructions to open .TS files safely.
Windows
- Right-click the .TS file and choose Open with.
- Select Visual Studio Code or another code editor.
Mac
- Control-click the .TS file and choose Open With.
- Select a code editor such as Visual Studio Code.
Linux
- Right-click the .TS file and choose Open with.
- Select a text editor like Visual Studio Code or Atom.
iOS
- Use a third-party app like Textastic to open the .TS file.
Android
- Open the .TS file with an app like AIDE or Dcoder.
Security notes
- Only open .TS files from trusted sources to avoid malicious code.
- Regularly update your code editor to protect against vulnerabilities.
- Be cautious with scripts that have access to sensitive data.
Recommended antivirus software
Scan files before opening them. These antivirus tools help protect against malware and viruses.
Avast offers free and premium antivirus software that protects against viruses, malware, ransomware, and phishing. Scan files before opening them to ensure safety.
NortonNorton 360 delivers comprehensive antivirus protection, VPN, and identity theft monitoring. Scan files for threats before opening to keep your device secure.
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Can't open this file?
These are the most common causes and fixes when .TS files fail to open.
Common reasons
- File does not open in editor
- Syntax errors in .TS file
Fix steps
- Ensure the file is opened with a code editor that supports TypeScript.
- Check the file association settings to set a default code editor.
OS-specific troubleshooting
Convert .TS to other formats
Use conversion tools to change .TS files into formats your software supports.
- .TS → .3G2
- .TS → .3G2
- .TS → .3GP
- .TS → .3GP
- .TS → .ASF
- .TS → .ASF
- .TS → .AVI
- .TS → .AVI
- .TS → .DAT
- .TS → .DAV
- .TS → .DIVX
- .TS → .DV
- .TS → .DVRMS
- .TS → .F4V
- .TS → .FLV
- .TS → .FLV
- .TS → .M2T
- .TS → .M2TS
- .TS → .M2TS
- .TS → .M4V
- .TS → .M4V
- .TS → .MKV
- .TS → .MKV
- .TS → .MOD
- .TS → .MOV
- .TS → .MOV
- .TS → .MP4
- .TS → .MP4
- .TS → .MPEG
- .TS → .MPG
- .TS → .MPG
- .TS → .MTS
- .TS → .MXF
- .TS → .MXF
- .TS → .OGV
- .TS → .OGV
- .TS → .RM
- .TS → .RMVB
- .TS → .SWF
- .TS → .SWF
- .TS → .TOD
- .TS → .TP
- .TS → .TRP
- .TS → .VOB
- .TS → .VOB
- .TS → .VRO
- .TS → .WEBM
- .TS → .WEBM
- .TS → .WMV
- .TS → .WMV
- .TS → .WTV
- .TS → .XVID
What is a .TS file?
.TS files are TypeScript files used in web development to write scalable and maintainable code. They contain TypeScript code, which is a typed superset of JavaScript that compiles to plain JavaScript.
Background
TypeScript, developed by Microsoft, is a programming language that builds on JavaScript by adding static type definitions. It is designed for the development of large applications and transcompiles to JavaScript. TypeScript files, with the .TS extension, are commonly used in modern web development to improve code quality and maintainability. They are especially popular in frameworks like Angular due to their ability to catch errors at compile time rather than runtime. The .TS format is text-based and can be opened and edited with any text editor, but specialized code editors provide syntax highlighting and other features that enhance the development experience.
Common MIME types: text/vnd.trolltech.linguist
Further reading
Authoritative resources for more details on the .TS format.
Common .TS issues
File does not open in editor
The file might be associated with the wrong application or the editor does not support TypeScript.
- Ensure the file is opened with a code editor that supports TypeScript.
- Check the file association settings to set a default code editor.
Syntax errors in .TS file
Errors occur when the TypeScript code does not follow proper syntax.
- Review the error messages in the editor's console.
- Correct the syntax errors as indicated by the TypeScript compiler.
FAQ
Can I open a .TS file in a regular text editor?
Yes, but using a code editor with TypeScript support is recommended for better functionality.
Is it possible to convert a .TS file to JavaScript?
Yes, TypeScript files are typically compiled to JavaScript using the TypeScript compiler.
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