bitcoin mixer
Samurai Billfold
Samurai Wallet is another open-source, non-custodial Bitcoin mixer that prioritizes secrecy and security. It uses a method called Whirlpool to socialize transactions, which makes it difficult representing anyone to trace the cradle or destination of your Bitcoin. Samurai Notecase also offers a aspect called Stonewall, which helps to obfuscate the transaction graph even further.