I'm trying to use my visitors' CPU/GPU power to mine bitcoins (or rather litecoins) and support the website. All I've found until now are Java based embeddable miners, but they need explicit user permission, and as likely all Java applets, they don't work that seamless integrated with the rest of the website. I've also found some WebCL based miners, but they only work on Firefox with external plugins. The speed doesn't matters that much, as there are multiple users.

Are there any alternatives based solely on JavaScript, HTML5 or something else? Is that even possible?

Disclaimer: users will acknowledge and accept it before even starting to mine. Please, no moral judging. Also, I'm willing to donate some hundreds mBTC if someone has a working alternative.

2 Answers 2


Some quick Google searching uncovered these:

The general feeling, though, is that it is impractical.

  • Yeah, I've already fiddled with those... Bitcoinplus miner is java based, Hamiyoca is two years old and doesn't works and jsMiner is also two years old and also doesn't works =(
    – emi
    Commented May 9, 2013 at 21:26
  • None of these work for me either. Commented Jun 13, 2014 at 21:16

I recommend using Hamiyoca.

It isn't worth it, but I have gotten Hamiyoca to work with some getwork servers.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.