The information you're looking for is publicly available in our online documentation, you can find it at Allowing public access to code:
If you have admin level permissions for a specific repository, you can make it publicly available for anonymous access.
Go to the repository and click Settings, then Repository (under 'Permissions'). Check Enable (under 'Public Access') to allow users without a Bitbucket Server account to clone and browse the repository.
Note that if you don't have admin permissions you won't be able to make this change.
Hope that helps you.
Hey Community! We’re willing to wager that quite a few of you not only use Bitbucket, but administer it too. Our team is excited to share that we’ll be releasing improvements throughout this month of...
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