how to migrate clients magento 1.9.2.1 to magento 2.1

[Quikleo84]

i have clients i would to know the easy way how to do it or i have to buy any extension 

thank you.

[Gabriel Guarino]

Hi @Quikleo84,

That is really a broad question. Here is the full guide that covers the migration from Magento 1 to Magento 2:

http://devdocs.magento.com/guides/v2.0/migration/bk-migration-guide.html

Best regards.
Gabriel