What is an FTS file?
FTS is a file extension often used for the Flexible Image Transport System (FITS) format. It is structurally identical to .fits files and is the standard format for exchanging astronomical data.
These files contain scientific data arrays (images, spectra) and metadata headers. Our Online FTS Viewer allows you to open and visualize these files directly in your web browser.
How to View FTS Files Online
Upload FTS
Drag and drop your .fts file into the viewer.
Visualize
The tool renders the astronomical data as an image.
Export
Save the visualization as a standard PNG image.
Frequently Asked Questions
Is FTS the same as FITS?
Yes, .fts is simply an alternative file extension for the FITS format, which is the standard for astronomical images.
How do I open FTS files?
You can use scientific software like DS9 or our free online viewer to inspect the contents of an FTS file.
Can I convert FTS to PNG?
Yes, this tool allows you to view the FTS data and export it as a standard PNG image.