I made a list of calculators like this which were shared here on HN over time https://gist.github.com/SMUsamaShah/6546011091d53380354484a3bb660ec2 https://gist.

I made a list of calculators like this which were shared here on HN over time https://gist.github.com/SMUsamaShah/6546011091d53380354484a3bb660ec2 https://gist.github.com/SMUsamaShah/6546011091d53380354484a3... (there aren't many) From these https://bbodi.github.io/notecalc3/ https://bbodi.github.io/notecalc3/ and https://notepadcalculator.com/ https://notepadcalculator.com/ are the most programmer friendly (supporting <<, ^, binary, hex etc)