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Why convert SIX to FTS?
Fast
Your file is converted in under 30 seconds in our cloud.
Secure
Files are automatically deleted after 1 hour.
Quality preserved
Maximum quality preserved during conversion.
About the SIX format
SIXEL — DEC SIXEL Graphics
SIXEL is a graphics format developed by DEC (Digital Equipment Corporation) for use in terminals and printers. It encodes bitmap images as a series of six-pixel-high bands transmitted as printable ASCII characters, and has seen a resurgence in modern terminal emulators.
Common uses
- Modern terminal emulator image display
- DEC terminal and VT-series printer output
- SSH session image viewing
- Converting images for terminal display
About the FTS format
FTS — Flexible Image Transport System (FITS)
FITS (Flexible Image Transport System) is the standard format used in astronomy for storing scientific data, images, and tables. Developed by NASA and the IAU, it is the universal format for telescope observations, space mission data, and astronomical image archives.
Common uses
- Astronomical image and data storage
- Telescope and space mission image archives
- Scientific image analysis in astrophysics
- Converting telescope data to viewable formats
Related conversions
Other conversions available for SIX and FTS files
Frequently asked questions
How do I convert SIX to FTS?
Upload your SIX file above, choose FTS as the output format, then click Convert. Your FTS file is ready to download in seconds — nothing to install, and it works in your browser.
Is the conversion free?
Yes, basic conversion is completely free. For large volumes, check out our paid plans.
What is the maximum file size?
Free accounts can convert files up to 25 MB. Pro accounts up to 100 MB.
How long are my files kept?
Files are automatically deleted after 1 hour on the free plan, 24 hours on Pro.
What formats are supported?
We support over 200 source and target formats. See our complete formats page.
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