vioscale
Comparison

CircleCI vs Semaphore

No clear leader: CircleCI (69.9) and Semaphore (68.4) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

CircleCI full profile →Semaphore full profile →
Machine formatsJSONMarkdownGraphQLor send Accept: application/json
CircleCI70
Semaphore68
Score
Vioscale score
CircleCI70 / 100medium · 73%
Semaphore68 / 100medium · 71%
Pricing
Free tier
CircleCI✓
Semaphore✓
Model
CircleCIfreemium
Semaphorefreemium
Price level
CircleCIlow
Semaphorelow
Transparent
CircleCI–
Semaphore✓
Integrations
Count
CircleCI15
Semaphore1
Security
Disclosure policy
CircleCI✓
Semaphore–
Fedramp
CircleCI✓
Semaphore–
Gdpr
CircleCI✓
Semaphore–
Iso27001
CircleCI✓
Semaphore✓
Pci
CircleCI✓
Semaphore✓
Soc2
CircleCI✓
Semaphore✓
Reliability
Status page
CircleCI✓
Semaphore✓
Adoption
Stackoverflow questions
CircleCI8,600
Semaphore–
Market
Availability
Content
Faq
CircleCI8 items
Semaphore–
Hosting
Model
CircleCIcloud
Semaphore–

Capabilities

Feature-by-feature on the axes that matter for ci/cd tools. “-” means undocumented, not absent.

Deployment
Hosting
CircleCICloud + self-hosted
Semaphore-
Self-hosted runners
CircleCI✓
Semaphore✓
Core
Config-as-code pipelines
CircleCI✓
Semaphore✓
Matrix / parallel builds
CircleCI-
Semaphore✓
Build
Container-native builds
CircleCI✓
Semaphore✓
Performance
Build caching
CircleCI✓
Semaphore-
Security
Secrets management
CircleCI✓
Semaphore-
Delivery
Deployment environments & approvals
CircleCI✓
Semaphore-
Ecosystem
Reusable actions / marketplace
CircleCI✓
Semaphore-

What each one is

The product in its own terms, so the numbers below have context.

CircleCI

CircleCI is a CI/CD platform that automates code testing, validation, and deployment across various environments and platforms. It executes builds in isolated containers, integrates with version control systems, and provides intelligence to help development teams ship quality software faster.

Independently observed

Semaphore

An all-in-one continuous integration and delivery system that enables teams to automate testing and deployment workflows. It supports containerized and cloud-native architectures and can be deployed as a managed cloud service or self-hosted.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

CircleCI

HybridFree tier

Free tier available. Usage-based credit system with prepaid discounts. Pricing scales based on active users and build volume.

  • FreeFree
as of verify ↗

Semaphore

from $0.00/moUsage-basedFree tier

Pay-per-minute metered compute: $0.0025/min (self-hosted) to $0.09/min (MacOS). Includes 20 concurrent jobs, $15/month free credits, 9.6 GB cache, and free support. Optional modular support and success services.

  • Compute - Ubuntu ARM$0.003–$0.012/min depending on vCPU
  • Compute - Ubuntu x64$0.0075–$0.015/min depending on vCPU
  • Compute - MacOS$0.09/min
  • Compute - Self-Hosted$0.0025/min
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
CircleCI✓
Semaphore✓
macOS
CircleCI✓
Semaphore✗
Windows
CircleCI✓
Semaphore✗
Linux
CircleCI✓
Semaphore✗
CLI
CircleCI✓
Semaphore✗
Deployment
Cloud / SaaS
CircleCI✓
Semaphore✓
Self-hosted
CircleCI✓
Semaphore✓
On-premise
CircleCI✓
Semaphore✗
Hybrid
CircleCI✓
Semaphore✗

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

CircleCI

15 total
  • AWS
  • AWS ECS
  • AWS ECR
  • AWS EKS
  • AWS S3
  • AWS Lambda
  • GitHub
  • Docker
  • Heroku
  • Netlify
  • OpenID Connect
  • Vault
  • GCP
  • Stripe
  • MCP
Independently observed

Semaphore

1 total
  • Flowdock
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.