vioscale
Comparison

CircleCI vs GitHub Actions

No clear leader: GitHub Actions (71.7) and CircleCI (69.9) 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 →GitHub Actions full profile →
Machine formatsJSONMarkdownGraphQLor send Accept: application/json
CircleCI70
GitHub Actions72
Score
Vioscale score
CircleCI70 / 100medium · 73%updating
GitHub Actions72 / 100medium · 74%updating
Pricing
Free tier
CircleCI✓
GitHub Actions✓
Model
CircleCIfreemium
GitHub Actionsfreemium
Price level
CircleCIlow
GitHub Actionslow
Transparent
CircleCI–
GitHub Actions✓
Integrations
Count
CircleCI15
GitHub Actions17
Security
Disclosure policy
CircleCI✓
GitHub Actions✓
Fedramp
CircleCI✓
GitHub Actions–
Gdpr
CircleCI✓
GitHub Actions✓
Iso27001
CircleCI✓
GitHub Actions✓
Pci
CircleCI✓
GitHub Actions–
Soc2
CircleCI✓
GitHub Actions✓
Reliability
Status page
CircleCI✓
GitHub Actions✓
Adoption
Stackoverflow questions
CircleCI8,600
GitHub Actions42,000
Market
Availability
Content
Faq
CircleCI8 items
GitHub Actions7 items
Hosting
Model
CircleCIcloud
GitHub Actionscloud

Capabilities

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

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

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

GitHub Actions

GitHub Actions enables developers to automatically build, test, and deploy code from their repositories. It supports parallel matrix builds across multiple environments, integrates with thousands of community-contributed actions, and can be extended with custom workflows written in declarative YAML.

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 ↗

GitHub Actions

from $4/moSubscriptionFree tier30-day trial

Free tier available. Paid plans from $4/user/month.

  • FreeFree
    • Unlimited public/private repositories
    • Dependabot security and version updates
    • 2,000 CI/CD minutes/month
    • 500MB Packages storage
    • Issues & Projects
    • +1 more
  • Team$4/user/month
    • Everything in Free
    • GitHub Codespaces access
    • Repository rules and branch protection
    • Multiple reviewers in pull requests
    • Draft pull requests
    • +7 more
  • EnterpriseContact sales
    • Everything in Team
    • Advanced security and compliance features
    • Flexible deployment options
as of verify ↗

Platform & deployment

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

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

Integrations

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

In common (2)
  • AWS
  • Docker

CircleCI

15 total - 13 not shared
  • AWS ECS
  • AWS ECR
  • AWS EKS
  • AWS S3
  • AWS Lambda
  • GitHub
  • Heroku
  • Netlify
  • OpenID Connect
  • Vault
  • GCP
  • Stripe
  • MCP
Independently observed

GitHub Actions

17 total - 15 not shared
  • Jira
  • npm
  • GitHub Packages
  • GitHub Pages
  • CodeQL
  • Slack
  • Azure
  • Google Cloud
  • Kubernetes
  • TruffleHog
  • Prowler
  • Gosec
  • Super-Linter
  • Claude
  • OpenCommit
Independently observed

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