Convert fits to gif
Converted on your device. Files never leave this tab.
Nothing is uploaded
The converter runs inside this page. Cut your network after it loads and it still works.
No account, no daily limit
No sign-up, no daily limit, no watermark, no queue behind other people's files. Batch as many FITS files as you like.
Real GIF output
Encoded by magick, the same library the command-line tools use — not a renamed extension.
About FITS
Flexible Image Transport System
The standard data format in astronomy since 1981, storing images and tables behind plain-text headers that record telescope and observation details. Convert from FITS to get a viewable PNG or JPG of telescope data; convert to it for astronomy software.
About GIF
Graphics Interchange Format
CompuServe's 1987 format, limited to a palette of 256 colors per frame and compressed losslessly with LZW. It supports simple animation and on-or-off transparency. Use it for short looping animations where broad support matters more than color depth.