AWS service that compiles source code, runs tests, and produces software packages. Like having a dedicated worker that takes raw materials and creates finished products.
CodeBuild automatically compiles Java applications and runs unit tests whenever new code is committed.
All are managed CI build services that run build steps (compile, test, package) on ephemeral workers. AWS CodeBuild is typically used as a build stage inside AWS CI/CD (often with CodePipeline), while Azure Pipelines, Cloud Build, and OCI DevOps Build Pipelines provide similar build execution with provider-specific integrations, runners, and pricing models.