Bitcoin mixers increase on-chain privacy by obscuring the link between inputs and outputs. Most work simply: users deposit BTC into a pool; coins are shuffled and later sent out to the specified addresses.

Like other Bitcoin mixers, BtcMix works as follows:
1) Enter the Bitcoin address (or multiple addresses) where you want to receive mixed BTC. Optionally set a delay. Longer delays generally improve the anonymity set.
2) Send the BTC you want to mix to the deposit address generated by BtcMix.
3) After the first confirmation of your deposit, BtcMix mixes your BTC and sends it to the address(es) from step one.

First of all, Bitcoin is not anonymous. Sending and receiving BTC leaves a public trail on the blockchain. If any transaction is tied to your identity, historical activity can be clustered and linked to you.
Anyone you pay can look up your prior transactions and often estimate balances. This is where mixers can help reduce linkage.
Mixers typically use CoinJoin. CoinJoin is a collaborative transaction that breaks common input–output ownership assumptions.
Instead of separate transactions between pairs of users, multiple participants combine inputs and outputs into a single transaction. Observers can see value moved, but not confidently map which input paid which output.

It is safe to use BtcMix. Whether you need a mixer is your call—always perform due diligence and read the Terms of Use.
Even with a trusted service, we recommend mixing smaller amounts rather than very large sums in one go.
Speed matters when improving privacy.
BtcMix offers mixing that pays out after the first confirmation of your deposit.
For a larger anonymity set, you may select a custom delay.
Security standards vary across mixers. Research carefully.
BtcMix never asks for personal data, does not log IPs, and deletes transaction details after 24 hours.
BtcMix combines speed, privacy, and affordability—mix up to 1 BTC in a single transaction, no registration or KYC.
Privacy is a fundamental human right recognized by key international treaties. Whoever you are, BtcMix is for you*.