Stacking of your images is the easy part, with many quality, free apps available.
But post-processing is where astrophotographers make their hard-won data really count.
StarTools lets you push your signal harder, with unrivalled fidelity.
StarTools does more than just help you make "pretty pictures".
There is no one perfect solution, but rather a range of approximations to the "perfect" solution.
Open an image stack ("dataset"), fresh from a stacker.
You can convert everything you see to a format you find convenient. Give it a try!