Comparison

Bazel vs CircleCI

On the evidence we track, CircleCI leads this comparison with a composite score of 76/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Bazel62
★CircleCI76
Score
vioscaleAI score
Bazel62 / 100low · 42%
CircleCI76 / 100medium · 74%
Pricing
Free tier
Bazel✓
CircleCI✓
Model
CircleCIfreemium
Price level
Bazelfree
CircleCImid
Starting price
Bazel–
CircleCI$15
Transparent
Bazel✓
CircleCI✓
Integrations
Count
Bazel–
CircleCI15
Security
Disclosure policy
Bazel✓
CircleCI✓
Fedramp
Bazel–
CircleCI✓
Gdpr
Bazel–
CircleCI✓
Iso27001
Bazel–
CircleCI✓
Pci
Bazel–
CircleCI✓
Scorecard
Bazel5.7
CircleCI–
Soc2
Bazel–
CircleCI✓
Reliability
Status page
Bazel–
CircleCI✓
Adoption
Dependent repos
Bazel3
CircleCI–
Github stars
Bazel25,942
CircleCI–
Stackoverflow questions
Bazel–
CircleCI8,600
Activity
Commits last 30d
Bazel100
CircleCI–
Release
Cadence days
Bazel4
CircleCI–
History
CircleCI–
License
Spdx
CircleCI–
Language
Primary
BazelJava
CircleCI–
Market
Availability
Content
Faq
Bazel5 items
CircleCI8 items
Hosting
Model
Bazel–
CircleCIcloud

Capabilities

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

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

What each one is

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

Bazel

An open-source build and test system designed to efficiently compile and test projects written in multiple programming languages while supporting builds for different target platforms. It uses intelligent caching and parallel execution to speed up builds and scales to handle large codebases across multiple repositories.

Independently observed

CircleCI

Leader

A continuous integration and deployment service that automates software testing, building, and deployment across multiple compute environments, with intelligent workflow orchestration and parallel execution capabilities.

Independently observed

Pricing

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

Bazel

Open sourceFree tier
as of verify ↗

CircleCI

Leader
from $15/moUsage-basedFree tier

Free plan with 30k monthly credits. Performance plan starts at $15/month with usage-based pricing for additional credits.

  • FreeFree
    • 30,000 free credits/month
    • Docker, Windows, Linux, Arm, macOS environments
    • Self-hosted runners
    • Docker layer caching
    • Deploys
    • +3 more
  • Performance$15/month + $0.60 per 1,000 additional credits
    • 30,000 free credits/month included
    • All compute environments including GPU
    • Docker layer caching
    • Deploys
    • Single sign-on (SSO)
    • +4 more
as of verify ↗

Platform & deployment

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

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

Integrations

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

Bazel

Not documented yet.

CircleCI

Leader
18 total
  • AWS
  • AWS ECS
  • AWS ECR
  • AWS EKS
  • AWS S3
  • AWS Lambda
  • GitHub
  • Docker
  • Heroku
  • Netlify
  • OpenID Connect
  • Vault
  • GCP
  • Stripe
  • MCP
  • Firebase Distribution
  • Fastlane
  • Rollbar
Independently observed
Still deciding?

Bazel or CircleCI: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

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