Bitbucket is a web-based platform designed for version control and collaborative software development. It allows teams to manage their code repositories using Git or Mercurial version control systems. Users can create, share, and collaborate on projects while tracking changes and maintaining a history of their code. In addition to repository management, Bitbucket offers features like pull requests, issue tracking, and continuous integration. It integrates seamlessly with other tools in the Atlassian ecosystem, such as Jira and Confluence, enhancing project management and team collaboration. This makes it a popular choice for developers and organizations looking to streamline their workflows.