The deal is done. The real question is what happens next.
On February 28, Microsoft officially closed its acquisition of GitLab for $45 billion. If you're a developer, that sentence should make you pause — because Microsoft now owns both of the platforms where the vast majority of the world's source code lives. [1] GitHub, which Microsoft bought in 2018 for $7.5 billion, hosts over 100 million developers and more than 400 million repositories. GitLab, with its 30 million-plus users and its reputation as the more enterprise-friendly, DevOps-integrated alternative, was supposed to be the counterweight. The platform developers could point to and say: "If Microsoft ruins GitHub, we'll move to GitLab." [2] That escape hatch just closed.
How we got here
GitLab went public in October 2021 at a $14.9 billion valuation, riding the pandemic-era boom in developer tooling and remote work infrastructure. By mid-2024, its stock had dropped more than 60% from its highs. Revenue growth was solid but decelerating, and the company was burning cash trying to compete with GitHub's AI-powered features — particularly GitHub Copilot, which had become the fastest-adopted developer tool in history. [2] Microsoft approached GitLab's board in late 2025 with a $45 billion offer — roughly a 40% premium over GitLab's market cap at the time. For GitLab shareholders, it was a straightforward decision. For the developer community, it was something else entirely.


