Dagger

Last updated April 6, 2026 at 6:39 AM UTC

Dagger provides a platform for modern test orchestration that enables developers and engineering teams to automate building, testing, and deploying code with repeatable results across local machines, CI servers, and cloud environments. It includes a runtime, a system API, and SDKs for eight languages, an interactive REPL, and built-in observability with tracing, logs, and metrics. Tests run in containers, host dependencies are explicit, artifacts are built just-in-time, and caching is fine-grained to speed up workflows. It supports a local-first approach and is designed for repeatable, observable pipelines.