AWS CodeBuild vs Semaphore
AWS CodeBuild
aws.amazon.com
Semaphore
semaphore.ioSide by side
| Figure | AWS CodeBuild | Semaphore |
|---|---|---|
| Price from | $0.01/mo | $0.01/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 7 | 12 |
| Spec score · Continuous Integration Software | 9.4 (#2) | 8.3 (#18) |
| Spec score · Mobile CI/CD Software | 9.4 (#1) | 8.3 (#11) |
| Spec score · Game Build Automation Software | 9.5 (#2) | 8.2 (#19) |
| Encryption | Artifacts, caches, logs and test-report data are encrypted at rest with AWS-managed or customer-managed KMS keys, while transport uses TLS and Signature Version 4. | Semaphore says data is encrypted in transit with 256-bit encryption and at rest with AES-256. |
Plans
AWS CodeBuild
- AWS CodeBuild pay-as-you-goFree
- AWS Free Tier (on-demand EC2)Free
- Lambda ARM 1GBFree
- general1.medium$0.01 a month
- general1.small$0.01 a month
- general1.large$0.02 a month
- Reserved x86-64 g1.small$129.60 a month
Semaphore
- Free usage creditsFree
- Self-HostedFree
- Ubuntu ARM 2vCPUFree
- Ubuntu ARM 4vCPU$0.01 a month
- Ubuntu ARM 8vCPU$0.01 a month
- Ubuntu x64 2vCPU$0.01 a month
- Ubuntu x64 4vCPU$0.02 a month
- macOS 4vCPU$0.09 a month
- MacOS 4vCPU$0.09 a month
- Basic Support$50 a month
In their own words
AWS CodeBuild
AWS CodeBuild is a paid, cloud-hosted continuous integration service for compiling, testing, and packaging code from build scripts. It provisions and scales build capacity automatically, so projects do not require users to manage build servers. Preconfigured environments cover Java, Python, Node.js, Ruby, Go, Android, .NET Core for Linux, and Docker; teams can also supply Docker-based environments. A YAML build specification defines commands for each build phase and other settings. Builds can start from CodeCommit, GitHub, GitHub Enterprise, Bitbucket, Amazon S3, or CodePipeline, and can work with Jenkins. Artifacts can be stored in S3 or sent to an artifact repository. IAM provides access controls, while KMS keys encrypt artifacts. Build timing, status, commit ID, metrics, and logs are available through the service and CloudWatch, with SNS event notifications. A free plan provides stated monthly allowances; paid usage starts at 0.01 USD and can add charges for data transfer and related AWS services.
Semaphore
Semaphore is an AI-native CI/CD platform for building, testing, releasing, and deploying code. Teams organize automated development tasks into workflows containing one or more pipelines. Its visual Workflow Builder represents pipelines, creates YAML configuration, and displays performance feedback. Repositories can connect from GitHub, GitLab, or Bitbucket. Teams can use hosted jobs or run self-hosted agents on Linux, macOS, or Windows; those agents can autoscale with Kubernetes or AWS. Semaphore is open source under Apache 2.0 and can be self-hosted. The default concurrency is 20 jobs, with higher limits available on request. Artifact use is free up to 20 GB monthly egress and 100 GB monthly storage; additional usage is charged separately. A free plan includes account, project, and Git integration assistance, while advanced CI troubleshooting is offered through paid support. Listed paid support begins with Basic Support at $50 a month. Semaphore says data is encrypted in transit and at rest, and that it holds SOC 2 Type 2 and ISO 27001:2022 certifications. Pricing includes free usage credits and per-minute compute charges.