Semaphore Reviews & Product Details

Semaphore is fast, reliable, and easy to work with. Its CI configuration is powerful while still staying readable and straightforward. Overall, it feels like a tool built for engineers, supported by people who genuinely care about helping teams succeed. Review collected by and hosted on G2.com.

Some advanced configuration options aren’t immediately available or obvious out of the box, especially for more complex CI workflows. However, the documentation and support team are very responsive, and in our experience they’ve been open to feedback and willing to help find good solutions when these edge cases come up. Review collected by and hosted on G2.com.

SemaphoreCI offers incredible support; they are very responsive, and they keep you informed at all times.

Their configuration system is extremely flexible, which made it easy to configure the pipeline exactly to our needs.

We have a dynamically built pipeline, and SemaphoreCI is one of the few providers that could accommodate that - we use it every day. Review collected by and hosted on G2.com.

Although their graph UI is excellent, it is not obvious why a block didn't run, and when you have multiple skipped blocks, it does clutter the experience a bit.

But because of the customizability, we could filter the blocks from being shown 'manually'. Review collected by and hosted on G2.com.

It’s fast. You push code and get results quickly, which is what you want from CI. The config is clean, jobs run in parallel out of the box, and the UI is straightforward. Good experience for simple pipelines or container builds - basically, if you don’t need much customization, it just works.

Happy yo see it OpenSource. Review collected by and hosted on G2.com.

It gets in the way when you try to do anything non-trivial. Secrets handling is too basic, and dealing with multi-account AWS workflows is painful. You can’t really customize the environment the way you’d want, and debugging pipeline issues feels clunky - especially when you hit some edge cases with caching or parallel steps. It’s fine for simple stuff, but not great when you need real control. Review collected by and hosted on G2.com.

Semaphore CI makes it incredibly easy to get started. With zero prior experience on the platform, I was able to spin up a working pipeline to build and test my service in no time. Their "Getting Started" flow is one of the best I've seen — it's clear, structured, and genuinely helps you get up to speed fast. Integrating Semaphore into my existing repositories and services was seamless. I now use Semaphore daily as part of my customer's regular development workflow, and slowly migrating their pipelines over from another CI/CD provider. On top of that, the support team deserves a massive shoutout. They’ve consistently responded within 24 hours and always offer actionable solutions. It’s hands-down some of the best support I’ve ever received from a tech company. Their free tier is also incredibly generous compared to other CI/CD platforms — perfect for testing out the service or running smaller projects without a financial commitment. I've already recommended Semaphore to others and plan to use it on more projects in the future. Review collected by and hosted on G2.com.

Honestly, there’s very little to complain about. The only minor challenge I had was adjusting to their build script format, which is a bit different from what I’m used to. But it’s not a big issue — the visual pipeline builder really helps smooth out that learning curve. Review collected by and hosted on G2.com.

The accessibility and flexibility of configuring our Semaphore instances helped us reduce our CI/CD pipelines to under 10 minutes on average. Also, a shout out to the support team - the support team is always very forthcoming and quick to respond. Generally very happy with Semaphore as our CI/CD provider. Review collected by and hosted on G2.com.

There are occasional hiccups with the agents responding slowly and the occasional outage - but these usually get resolved really quickly by the team. Review collected by and hosted on G2.com.

What I like about Semaphore is that it’s an independent European company with its own data centers. The bare metal servers deliver excellent performance, cutting our times in half, which shortens our feedback loop and significantly improves developer productivity. Also reduces costs by 2 as we need half the time to run CI ! The new flaky test detection tool is also very useful, and their pricing remains highly competitive compared to other providers. Review collected by and hosted on G2.com.

Like many other CI solutions, YAML configuration can sometimes seem complex despite the graphical editor added in recent years. The documentation is very comprehensive but can feel endless due to the platform’s almost limitless possibilities. I’ve had to contact support two or three times over the past five years for specific configuration questions. Review collected by and hosted on G2.com.

It's cheap, it's easy to understand and the suppport team is quick to assist if you need help. We've previously used CircleCI which we found to be the opposite of all these. The UI is also modern and you easily get to what you want. The deployments feature is something I've been searching long and hard for, but haven't found anything else without severely impacting simplicity/ease-of-use. We use Semaphore CI every day, and perform 10+ releases a day to our environments and we have not had any problems yet. It was also very easy to get started as we just connected our GitHub Org, imported the relevant users and got to work on the pipeline files. That step was also a lot easier thanks to the graphical interface which guides you a little bit while you're getting used to the format. Honestly after trying GitHub Actions, CircleCI, Octopus, Jenkins, and more, this clearly stands out to me as the better option. Review collected by and hosted on G2.com.

I wish the UI would be a little bit faster at times. And that the dynamic template resolution step when you use deployment parameters was a little faster. We're trying to squeeze every bit of performance out of our CI and losing 10 seconds to this is a little frustrating. Review collected by and hosted on G2.com.

The product integrates well into our CI/CD setup. The web UI stays out of your way and you can resort to CLI for everything you might need (besides analytics, I think). The ability to spin up the environments and ssh into it to debug potential issues makes it easy to spot issues. The documentation is fine, and above all - their support is human, swift and reliable. Review collected by and hosted on G2.com.

A feature that is in the pipeline (afaik) is to rerun indivdual steps instead of a whole workflow. This is obviously tricky (need to reset artifacts and cache etc) but would save some time on long flaky ci runs (that you should not have, but ... probably have). Review collected by and hosted on G2.com.

Fast support response and taking initiative to solve the issue provided, where the support team took time to curate a custom solution to our submitted request ! Review collected by and hosted on G2.com.

The lack of some permission management which would replace some workarounds being implemented. Review collected by and hosted on G2.com.

The best thing I like is the support that's always polite and helpful. It offers a lot features that are handy for a developer like me. Integrating these features into our processes works really good most of the time! Review collected by and hosted on G2.com.

Sometimes, I find it difficult to navigate through the documentation since there's a lot and it's not particularly within my field of work. Nonetheless, this does not happen often and the customer support is always there to help! Review collected by and hosted on G2.com.