Semaphore Reviews & Product Details

We’re excited to announce that Semaphore’s core CI/CD platform is officially open source. Now, you can explore, tweak, and contribute to the same production-grade code that’s powered your builds and deployments—all under the Apache 2.0 license. Find the GitHub repo here: https://github.com/semaphoreio/semaphore Semaphore CI/CD helps product teams ship software faster, with quality and security. 🚀 Features Blazing-fast CI/CD – Get your builds & deployments done in record time. Simple yet powerful – YAML-based config, parallel execution, and more! Scales with you – From solo developers to massive engineering teams. Built for the modern cloud – Works seamlessly with containers, Kubernetes, and multi-cloud environments.

Seller

Semaphore

Discussions

Semaphore Community

Languages Supported

English

Solution Type

Best-of-Breed

Overview by

Gabriela Geanta

Pricing

Pricing provided by Semaphore.

Free

$0.00

flat_rate Per Month

Startup

$0.00

usage_based Per Month

View More Pricing Information

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User Insights

Average based on 199 real user reviews.

Implementation Time

1 month

Perceived Cost

$$$$$

Semaphore Reviews FAQs

Generated using AI

Last updated: Nov 04, 2026

What is Semaphore, and what problem is it built to solve?

Semaphore is a continuous integration and delivery platform for automating software testing and deployment. It is designed to help development teams manage those processes more efficiently.

What languages does Semaphore support?

Semaphore supports 1 language: English.

What company sizes and industries is Semaphore the best fit for?

Semaphore’s strongest fit in the reviewer-reported customer mix is among small and mid-sized businesses, with software and technology-oriented industries especially represented. The main segments include:

Company size — Small Business: The most represented size segment among positive reviewers.
Company size — Mid-Market: Also strongly represented, including teams using Semaphore across development and delivery workflows.
Company size — Enterprise: Present among positive reviewers, including teams using the platform for broader CI/CD needs.
Industry — Computer Software: The most represented industry segment.
Industry — Information Technology and Services: Another prominent segment among positive reviewers.
Industry — Internet: Also represented among positive reviewers.

How long does it take to implement Semaphore across a team?

Semaphore can be quick to bring into a team’s workflow, with reported go-live times most often falling within a month and many teams getting started in under a day. Other reported implementations took longer.

Time to go live	Relative frequency
Under 1 month	Most common
Under 1 day	Also frequently reported
1–3 months	Less common

What customer support options does Semaphore provide, and how do users find the overall support experience?

Semaphore provides chat support, including access to a live representative 24/7. The support experience is often described as responsive, knowledgeable, and genuinely human, with practical help on configuration and technical issues; response timing can vary for some teams.

What is the experience like for teams switching to Semaphore from another tool?

Switching to Semaphore has often meant replacing slower, harder-to-maintain, or more cumbersome CI setups with a faster and more approachable way to configure builds and deployments. Prior tools mentioned include CircleCI, Travis CI, Jenkins, Bamboo, and Bitbucket Pipelines, alongside self-hosted or custom systems; users describe gaining simpler configuration, more predictable workflows, or better value, though the transition can still require adapting to Semaphore’s configuration approach.

What tools and platforms does Semaphore integrate with, and how do these integrations help users get more value from the product?

Semaphore is used alongside source-control, team-notification, and cloud deployment tools, helping teams run checks and coordinate delivery from their existing workflows.

Source control: GitHub and Bitbucket connect repository changes with build and test runs.
Notifications and reporting: Slack, email, and Code Climate help teams surface build outcomes and related information.
Cloud and deployment workflows: AWS, Heroku, and Docker-related tools support building and deploying applications.

What features or capabilities could make Semaphore even more useful?

Teams would find Semaphore more useful with finer control over access and clearer ways to manage and inspect builds. Recurring improvement requests include:

More granular permissions: Let administrators control access to secrets, projects, and production deployments more precisely.
Single-job reruns: Allow a failed or flaky job to be rerun without repeating the entire workflow.
Clearer pipeline visibility: Make build and deployment status, skipped steps, history, and project-level activity easier to understand at a glance.
Broader workflow flexibility: Expand options for integrations, repository support, and configuring advanced pipeline behavior.

G2 reviews are authentic and verified.

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Verified User in E-Learning

Mid-Market (51-1000 emp.)

10/21/2026

"Fast, Reliable, and User-Friendly Tool We’ve Trusted for Years"

5/5

What do you like best about Semaphore?

It's a fast, reliable, convenient, and user-friendly tool. Our organization has used it for years, and I don't recall any major issues with it. I experienced some slowness once, reported it to the Support Team, and the issue was investigated and fixed within an hour. The response time from the team was just a couple of minutes. And I didn't feel like I was assisted by a bot, which is rare. Review collected by and hosted on G2.com.

What do you dislike about Semaphore?

I do not have anything to complain about. The tool covers my daily needs Review collected by and hosted on G2.com.

What problems is Semaphore solving and how is that benefiting you?

Semaphore fixes the hassle of running and maintaining a big automated test suite. Without it, you get slow local runs, fiddly setup to point tests at different environments, and CI failures nobody can figure out. With Semaphore I start exactly the tests I need with a couple of clicks, runs are fast, and when something fails only on CI I can jump into the job and see why. For me that means less time fighting tooling and more time writing tests. I also trust the results more, so I can move faster. Review collected by and hosted on G2.com.

Jon P.

Senior Software Engineer

Mid-Market (51-1000 emp.)

6/10/2026

"Fantastic UI and Responsive Support"

4/5

What do you like best about Semaphore?

There are several things I like most about Semaphore.

First, the UI is fantastic. I find it really easy to navigate and use. Integrating Semaphore with our GitHub account was super easy, and we’ve seen very few performance issues. When it comes to pricing, I think it’s excellent for what you get out of the platform. Semaphore also makes it easy to see which projects have the biggest spend, so you can adjust if needed and try to reduce costs.

I recently opened a support ticket for an issue that turned out to be on GitHub’s side, but throughout the process the support agent kept me up to date at every step, which I really appreciated as a customer. Admittedly, I haven’t explored Semaphore’s AI offerings much yet, but I’m keen to see how AI can help us use Semaphore even more efficiently. Review collected by and hosted on G2.com.

What do you dislike about Semaphore?

Nothing major springs to mind. I have noticed that some jobs can sit in the queue for a while, which I think is down to worker availability. While it isn’t a huge issue most of the time, it can be a problem if you’re trying to push through an urgent change. Review collected by and hosted on G2.com.

Yashdeep S.

Senior Devops Engineer

Mid-Market (51-1000 emp.)

7/25/2026

"Remarkably Efficient Self-Hosted Agent Setup with Prompt, Effective Support"

5/5

What do you like best about Semaphore?

The self-hosted agent setup is remarkably efficient, a testament to my personal contributions to the project and the team's consistently prompt and effective support in resolving any issues. Review collected by and hosted on G2.com.

What do you dislike about Semaphore?

A current challenge we face is that when our deployment targets are numerous and the deployment history expands, we begin to encounter 500 errors. This issue requires optimization. Review collected by and hosted on G2.com.

What problems is Semaphore solving and how is that benefiting you?

This capability enables dynamic scaling of job execution and pipeline architecture, incorporating pre-flight checks that have significantly optimized our workflows. This optimization supports dynamic, full pipeline changes based on modified files, triggering only the specific tests relevant to those changes. This approach has efficiently saved us both time and resources for each component. Review collected by and hosted on G2.com.

Den Z.

Ruby on Rails Developer

Small-Business (50 or fewer emp.)

1/27/2026

"Fast, Reliable CI with Powerful Yet Readable Config—Built for Engineers"

5/5

What do you like best about Semaphore?

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.

What do you dislike about Semaphore?

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.

Jono F.

Senior Full Stack Engineer

Small-Business (50 or fewer emp.)

4/13/2026

"Powerful CI Tool"

4.5/5

What do you like best about Semaphore?

I like the Semaphore config file because it serves as a single source of truth. The pipeline lives in the repo alongside the code it tests, which is version controlled. I find making changes and updates via the Semaphore config file to be very straightforward. Review collected by and hosted on G2.com.

What do you dislike about Semaphore?

There's genuinely not anything that springs to mind. Review collected by and hosted on G2.com.

Karim H.

CEO

Small-Business (50 or fewer emp.)

6/25/2026

"Simple, Reliable, and Fast—A Great Experience Overall"

4.5/5

What do you like best about Semaphore?

Very simple to use, extremely reliable and quick. Review collected by and hosted on G2.com.

What do you dislike about Semaphore?

A few quirks about how to setup the parallelism, but overall, nothing much. Review collected by and hosted on G2.com.

Verified User in Information Technology and Services

Small-Business (50 or fewer emp.)

6/30/2026

"Semaphore: Pay-as-you-go CI/CD with Reliable Builds, Great Uptime, and Simple Integration"

5/5

What do you like best about Semaphore?

The best thing I like about Semaphore which no other CI CD system doesn't have is their pay as you go model. The builds and feedback are super solid and they consistently deliver results. Their uptime has been great too, i have never had any problems with their integration. In a day of complex integrations, Semaphore has chosen simplicity over style and that is why I would recommend and go with them any day. Review collected by and hosted on G2.com.

What do you dislike about Semaphore?

Can't think of any right now. They have been super consistent from start to now. Review collected by and hosted on G2.com.

Verified User in Computer Software

Small-Business (50 or fewer emp.)

4/28/2026

"Expressive, Close-to-the-Metal Builds with Helpful Sugar"

4.5/5

What do you like best about Semaphore?

Close to the “metal,” it lets us express complex build and deployment patterns while still providing enough “sugar” to make common patterns faster and easier. Review collected by and hosted on G2.com.

What do you dislike about Semaphore?

Limited source code repository support. GitHub isn’t the unassailable default choice it was five years ago, and I’d like the flexibility to move away if needed. Right now, though, doing that would mean leaving Semaphore. Review collected by and hosted on G2.com.

Mathias R.

Senior Software Engineer

Mid-Market (51-1000 emp.)

10/24/2025

"Outstanding Support and Flexibility, with an Excellent Graph UI"

4.5/5

What do you like best about Semaphore?

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.

What do you dislike about Semaphore?

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.

S. K.

Infrastructure Lead

Small-Business (50 or fewer emp.)

7/26/2025

"Fast and simple, but not flexible enough for advanced setups"

3.5/5

What do you like best about Semaphore?

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

What do you dislike about Semaphore?

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.

What problems is Semaphore solving and how is that benefiting you?

It handles the basic CI needs well- build, test, deploy. For small-to-medium projects, it saves time by running things in parallel and keeping pipelines fast. That helps shorten feedback loops, especially when testing Docker builds or pushing to staging. It’s also easy to onboard someone new - no need to explain a ton of YAML or deal with self-hosted runners. Just commit and go. Review collected by and hosted on G2.com.