Bitbucket: Owned by Atlassian, integrates seamlessly with Atlassian tools like Jira and Confluence, and offers built-in CI/CD with Bitbucket Pipelines.
GitLab: Provides integrated CI/CD tools and comprehensive DevOps workflows out of the box, along with extensive customization options and a strong focus on open-source principles.
GitHub: Acquired by Microsoft, integrates well with Microsoft's ecosystem, offers flexibility in choosing CI/CD tools, and is known for its large developer community and extensive third-party integrations.