RawTherapee - RawTherapee is a free RAW converter and digital photo processing software.
CALCONIC_ - Build & add interactive calculators to your website! Choose from more than 50 premade calculators or build your own from scratch. No coding required. Free plan available. Zapier Integration. Publish Anywhere.
ConvertCalculator - Create powerful, beautiful Calculator forms
Wolfram Mathematica - Mathematica has characterized the cutting edge in specialized processing—and gave the chief calculation environment to a large number of pioneers, instructors, understudies, and others around the globe.
uCalc - uCalc is a universal builder of forms and calculators.
iWinSoft Image Converter - iWinSoft Image Converter is a batch image processor that allows the user to convert multiple images to most popular vector and raster image formats including EPS, PSD, PDF, TPIC, PNG, JPG and all types of RAW formats.