I made a Web Tool to scan for the keys. https://newbtcbruterandom.grantrocks.repl.co its a random btc key checker (this one is new and it uses all possible cores on your cpu-1 so that it can update the gui). It features a select tool so that all you have to do is choose a puzzle that is somewhat possible to get randomly and click start. I get about 100000 keys per thread on a AMD Ryzen 7 5700G running at 4.4Ghz. I use 14 threads. so thats about 1.4 Million keys every 20 seconds that are randomly checked. Its also focused on performance and im constantly updating it. Please leave some feedback for me so i know where and how to improve. Im currently trying to speed up the hashing so any help with that would be much appreciated!

I also made a non random scanner https://32btcbrute.grantrocks.repl.co to scan for specified btc puzzles. this one is quite fast and allows you to customize where to search.


EDIT
im hoping to use a lib like gpu.js in the future to greatly speed up the tool. However i have no idea how to do this and it will take me a while to figure out.