Learn how GitLab and Semaphore differ in their key features, development activity, technology stack and community adoption, so you can decide which of these ci/cd platforms is best for you.
Last 30 days
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Last 30 days
Last commit
Repository age
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Self-hosted
Repository

GitLab appears to have several advantages over Semaphore, particularly in popularity, maturity and licensing. Consider your specific needs regarding popularity, growth, activity, technology, maturity, licensing and features when making your decision.
GitLab significantly outpaces Semaphore in community adoption with 24,552 stars compared to 1,588 stars on GitHub. This 15.5x difference suggests GitLab has a much larger and more active community. In terms of developer contributions, GitLab has 6,000 forks, indicating strong developer engagement.
Semaphore is growing faster, adding 21 stars in the last 30 days (+1.3%) against adding 35 stars for GitLab (+0.1%). Semaphore is the smaller project of the two, so it is closing the gap rather than extending a lead.
Both projects show recent activity, with GitLab last updated 6 hours ago and Semaphore 9 hours ago.
Both tools share common technology foundations, being built with JavaScript, CSS, Bash, Python, Golang, Ruby. However, they differ in their additional technology choices: GitLab uses SCSS, Vue, Clojure while Semaphore leverages Typescript, JSX, Elixir.
GitLab has been in development longer, starting 15 years ago, compared to Semaphore which began 2 years ago. This 13.5-year head start suggests GitLab may have more mature features and established processes.
GitLab is licensed under MIT, while Semaphore's license terms are not publicly specified.
Both tools serve similar use cases in CI/CD Platforms. However, they also have distinct specializations: GitLab also focuses on Project Management Suites, Git Platforms.
Both GitLab and Semaphore offer self-hosting capabilities, giving you full control over your data and infrastructure.