Semaphore is a CI/CD platform for building, testing, and deploying software. Teams can use its hosted service or run open-source editions on their own infrastructure.
Official documentation verifies hosted and self-managed CI, repository integrations, APIs, and usage-based pricing. Public review pages show positive aggregate ratings, while some reviewer comments mention navigation, queueing, and advanced configuration.
This profile combines documented product information and independent evidence where available. It is not a hands-on test unless TechZella explicitly identifies one.
Semaphore is a continuous integration and delivery platform for software teams. It runs build, test, and deployment workflows linked to Git repositories.
Buyers can choose Semaphore Cloud, combine cloud execution with self-hosted agents, or install an open-source edition themselves. Cloud compute is usage-based, with $15 in free monthly credits per organization.
Its October and November 2026 open-source releases added an MCP server and partial job reruns. These functions let compatible agents inspect CI information and rerun failed jobs; they do not remove the need to manage CI configuration and access.
A quick way to understand who this product may suit, where its limits matter, and which facts are most relevant before you compare alternatives.
Software teams that want CI/CD connected to GitHub, Bitbucket, or GitLab, with options for hosted execution or self-hosted agents and a usage-based cloud bill.
Teams that require a low-maintenance, fully self-managed product may need to account for installation, infrastructure, storage, and upgrades. Teams seeking a broad repository-provider choice should verify provider coverage before switching, and should evaluate alternatives such as CircleCI or GitHub Actions instead.
Cloud, Linux, macOS, SaaS, Self-hosted
8.4/10
These are the product-specific differences that may matter when deciding whether the software fits your workflow. They are based on documented evidence rather than a universal ranking.
These are documented constraints or practical friction points that may matter before you adopt the product.
Teams planning to run initialization or pre-flight steps on their own machines should confirm their agent operating system and installed dependencies.
Evidence source ↗Existing self-hosted customers should review the upgrade instructions and retention needs before upgrading.
Evidence source ↗Buyers should estimate machine minutes and artifact usage rather than treating the monthly credit as an unlimited plan.
Evidence source ↗Each organization starts with $15 in free usage each month. Additional compute is billed by minute at rates that depend on machine type.
Check current pricing →Listed Semaphore Cloud compute rate for an Ubuntu ARM 2-vCPU machine.
Check current pricing →Listed Semaphore Cloud compute rate for an Ubuntu x64 2-vCPU machine.
Check current pricing →Listed Semaphore Cloud compute rate for a macOS 4-vCPU machine.
Check current pricing →Listed Semaphore Cloud rate for self-hosted execution under the current usage-based model; customer infrastructure costs are separate.
Check current pricing →Pricing may change. Verify current plans on the vendor's website.
Compare similar products directly, then see which alternatives may make more sense when your requirements differ.
| Decision factor | Semaphore CI | CircleCI | GitHub Actions |
|---|---|---|---|
| Pricing model | Cloud compute is billed per minute by machine type; each organization receives $15 in monthly free credits. | Cloud plans use credits; the Free plan lists up to 6,000 build minutes and Performance starts at $15 per month. Source ↗ | GitHub Actions is free for public repositories using standard hosted runners; private repository hosted-runner use draws on plan-specific allowances and is billed beyond them. Source ↗ |
| Repository integrations | Official documentation lists GitHub, Bitbucket, and GitLab repository connections. | CircleCI offers hosted CI plans and documents integrations through its platform, but its current pricing page is focused on plan and runner capabilities rather than an equivalent short list of supported Git providers. Source ↗ | GitHub Actions is integrated into GitHub workflows and runs workflows from repositories on GitHub. Source ↗ |
| Execution options | Hosted cloud execution can be combined with self-hosted agents; open-source editions can also be self-hosted. | CircleCI's Free and Performance cloud plans list hosted Docker, Linux, Windows, Arm, macOS, and self-hosted runners. Source ↗ | GitHub Actions supports GitHub-hosted and self-hosted runners. Source ↗ |
Only factors supported by the available research are shown. The comparison is descriptive, not a ranking.
These products address broadly similar requirements. The descriptions focus on documented reasons a buyer might compare them with Semaphore CI.
| Product type | Continuous integration and delivery platform |
|---|---|
| Repository integrations | GitHub, Bitbucket, GitLab |
| API | Public API; HTTPS requests and JSON |
| CLI | Semaphore CLI |
| Cloud deployment | Managed SaaS |
| Self-managed deployment | Community and Enterprise open-source editions |
| Hosted execution environments | Linux and macOS; Windows available on self-hosted agents |
| Free usage | $15 monthly credits per organization |
| Artifact allowance | Up to 100 GB monthly storage and 20 GB monthly egress |
| Open-source license | Apache 2.0 for the core platform |
Verified installation, hosting, administration, or environment details that can affect implementation.
| Hosted deployment | Semaphore Cloud is a managed CI/CD service with usage-based compute pricing. Source ↗ |
|---|---|
| Self-managed deployment | Semaphore Community Edition and Enterprise Edition are open-source editions that can be installed on customer infrastructure. Source ↗ |
| Hybrid execution | Cloud organizations can combine Semaphore-provided machines with self-hosted agents. Source ↗ |
Documented portability, standards, export, or switching considerations. No switching-cost score is shown unless the evidence supports one.
Semaphore publishes migration guides for users moving from CI providers including Jenkins and CircleCI.
Evidence source ↗The 1.6 upgrade does not migrate stored artifacts, job logs, or cache entries; the upgrade guide calls out this data change.
Evidence source ↗A proprietary editorial score based on product capabilities, usability, value, performance, support and user sentiment evidence.
Official documentation verifies hosted and self-managed CI, repository integrations, APIs, and usage-based pricing. Public review pages show positive aggregate ratings, while some reviewer comments mention navigation, queueing, and advanced configuration.
Methodology v1.0. The assessment weighs feature coverage (25%), ease of use (15%), value for money (20%), performance (15%), support (10%) and user sentiment (15%), using researched product evidence and verified review evidence where available. It is a TechZella editorial assessment, not a direct user-review average.
Key claims are linked to the sources used to verify them. This evidence record is separate from third-party user ratings.
TechZella evaluates software using documented product capabilities, pricing information, usability and value considerations, independent user evidence where available, and competitive context. The assessment is an editorial review, not a hands-on test unless one is explicitly identified. Our editorial assessment is based on 6 documented sources.
The company's open-source transition paper states the hosted service launched in 2012.
View source ↗Verified 2026-11-08The official pricing page lists $15 in monthly free credits and usage-based compute prices.
View source ↗Verified 2026-11-08The project documentation identifies these three repository providers and links to connection instructions.
View source ↗Verified 2026-11-08The API reference describes authenticated HTTPS requests, JSON data, API tokens, and available resources.
View source ↗Verified 2026-11-08The release announcement states both features shipped in Community and Enterprise open-source editions.
View source ↗Verified 2026-11-08The public G2 product review page reports that rating and review count.
View source ↗Verified 2026-11-08Answers below are based on Semaphore’s official pricing and documentation pages.
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