.TSX·File Extension

What is a .tsx file?

A .tsx file is a TypeScript JSX File — TypeScript file containing JSX for React components.

In the mime-db registry it has no registered standard MIME type. When serving this file over HTTP, use a Content-Type that matches its actual format.

When served over HTTP, responses should set the following header:

# No standard MIME type is registered for .tsx

Common software that reads/writes .tsx:

• Movies and clips
• Streaming media
• Screen recordings

• Open the file with VS Code, make your changes and save.
• Most editors preserve the original formatting and encoding — avoid changing the charset.

• Create a new file and save it with the .tsx extension, or export this format from VS Code.

• mime-db
• refnet data sources

Updated 2026-08-18