What is Bitbucket?
Bitbucket is a web-based hosting service for projects that use either the Mercurial (since the origin) or Git (since October 2011) revision control systems. Bitbucket offers both commercial plans and free accounts.
Bitbucket provides Git and Mercurial hosting for teams. Host your code online in as many public and private repositories as you want. Free five-user tier accounts! Manage your projects with confidence with built-in issue trackers, wikis, code comments, and pull requests.
It is similar to GitHub, which primarily uses Git. In a 2008 blog post, Bruce Eckel compared Bitbucket favorably to Launchpad,[4] which uses Bazaar.
Advantages
1. Free private repositories
2. Support for Mercurial
3. JIRA integration
4. It’s worth having a backup
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