Bitmixer is one of the most preferred bitcoin mixer enjoyed by many people.
At bitmixer,you have to pay a minimum fee of 0.5% and additionally transaction fee on every transaction.
You get very cheaper mixing than other mixers.
Bitmixer.io closed down their service a few months ago.

I think ChipMixer is pretty much the most preferred mixer right now.
*slightly biased*Bitmixer's post about them shutting down:
https://bitcointalk.org/index.php?topic=2042470Right now, chipmixer seems to be unreachable. Or is the link in your signature wrong?
ooo. the link in my signature is definitely correct. They've been having DDoS problems recently unfortunately. Their Tor service wasn't unaffected though. Chipmixer's tor URL is
http://chipmixerwzxtzbw.onion/ if you're interested.
As I still can't access chipmixer in usual way: How are the price structures there?
Same for me, seems like they are having DDoS problems as stated by few people.
What are the benefits of chipmixer giving out free service? Maybe ads or premium users? But many thanks for your tipps, will definitivly try that service.
Since they don't s change any fees, why not use that right? They have been around for a while so doesn't seem like scam or anything there is no need to try and find loopholes how that is profitable for them, as a consumer why not enjoy the free service while we can.