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EyE (Enhance Your Extraction) generates non-linear image filters for SExtractor using machine-learning.

MissFITS is a program that performs basic maintenance and packaging tasks on FITS files.

SCAMP reads SExtractor catalogues and computes astrometric and photometric solutions for SWarp.

SExtractor extracts catalogues of objects from astronomical images.

SkyMaker generates artificial astronomical images.

STIFF converts scientific FITS images to TIFF format

Stuff generates artificial catalogs of astronomical sources for SkyMaker.

SWarp resamples and combines FITS images in any arbitrary World-Coordinate-System- compliant projection.

WeightWatcher combines weight-maps, flag-maps and polygon data to produce control maps which can directly be used in astronomical image-processing packages like SWarp or SExtractor.