Convert ico to fits

Converted on your device. Files never leave this tab.

Drop ico files here or click to choose

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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 ICO files as you like.

Real FITS output

Encoded by magick, the same library the command-line tools use — not a renamed extension.

Other ico conversions png jpg webp gif bmp tiff avif jxl jp2 psd tga pcx

Convert to fits from png jpg webp gif bmp tiff avif jxl jp2 psd tga pcx

About ICO

Windows Icon

The Windows icon format, which packs several sizes of the same image, such as 16x16 and 32x32 pixels, into one file. Each size is stored as a bitmap or a PNG. Convert to ICO to make a favicon or a Windows application icon.

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.