Why? Because the law says so! Ever since the implementation of GDPR, user privacy is even more of a concern to every organization, including a website. It mandates that websites do not collect user data without their consent and to inform users of the working of the website. It ensures the rights of the user are honored by websites and penalizes those who do not comply with its rules.
Customizability: Choose the one that lets you customize it and input details.
Most of the tools listed here are free of cost but have paid upgrade version.
This website is more useful than it looks. It has generated over 1 million legally compliant policies. They are understandable, comprehensive and available for free too. However, for the GDPR clause feature, you need to pay.
It has no sign-up involved or requires any payment to use. Paid add-ons can be installed later.