Hello, Can you give me an estimate? (Coin mixer development)

[afkp2p]

First, I want to make a site like Chipmixer , Bestmixer...

Roughly, How much will it cost to develop a programmer? (Except for the basic BTC used for coin mixing)

[mocacinno]

I've created a POC mixer for a client a long time ago... If memory serves me correctly, i billed about ~3 weeks for the POC version. These 3 weeks included designing a multi-server setup, installing the servers, configuring both frontend, database server, backend and hot wallet, writing the actual frontend (including a basic design), database schema and mixing script and testing on the testnet. It was for a bitmixer-type mixing service, not a service like chipmixer (which uses a completely different mixing technique).

In the end, the client wasn't interested in moving foreward, since the tests on the testnet indicated he'd need to have a buffer of at least ~25 BTC to start his service, and he was unwilling to invest this amount of coins. Also, the multi-server setup wasn't hardened, the frontend design was very basic and no thirth party dev had looked over the code to vet it, so moving from POC to production would have costed a couple weeks extra.

[boyptc]

Hey you have posted already on Services --> https://bitcointalk.org/index.php?topic=5177601.0

You should close this thread and stay on the other one on Services.

[tbct_mt2]

First, I want to make a site like Chipmixer , Bestmixer...

Roughly, How much will it cost to develop a programmer? (Except for the basic BTC used for coin mixing)

Bestmixer.io is a failed mixing platform, in the way it ended. By now, Chipmixer is likely the best mixing service in crypto, so I suggest you to look at Chipmixer and learn from them.
Building a same platform as Bestmixer.io, technicallly, might cause another failed mixing service, that will in turn result in losses for both site owner and customers.
https://www.fiod.nl/the-fiod-and-the-public-prosecution-service-take-money-laundering-machine-for-cryptocurrencies-offline/