Dagger is the programmable CI/CD engine from the original Docker founders, letting teams define pipelines in Go, TypeScript, Python, or Java and run them identically everywhere.
Source: GitHub · fetched 2026-04-17
Dagger launched in 2022, founded by Solomon Hykes (original creator of Docker) and the Docker co-founder team. It is Apache 2.0 licensed and reframes CI/CD as a programmable container runtime—pipelines are written in general-purpose languages (Go, TypeScript, Python, Java, PHP) using the Dagger SDK, which compiles them to a DAG of containerized operations executed by a local or remote engine.
The pitch is that pipelines become portable: the same Dagger code runs on a developer laptop, GitHub Actions, GitLab, Jenkins, or CircleCI without modification, and every step is cached at the content-addressed layer. The commercial product, Dagger Cloud, adds distributed caching, run visualization, and team-level telemetry on top of the open engine.
Dagger is newer than the other CI tools in this list and adoption is still building. Public adopters and case studies include Replicate, Vercel, GitPod, and several fintech engineering teams who picked it specifically for the "write pipelines in real code" property. It shows up most in engineering orgs already comfortable with containerization and polyglot codebases.
Dagger users are DevEx and platform engineers who build and maintain CI pipelines, backend engineers who want to unit-test their build logic, and release engineers who need reproducibility across environments. These personas buy CI/CD runners, container registries, SBOM and supply-chain tools, secret managers, and observability products.
According to the Dagger README: “Dagger is a platform for automating software delivery.” (source)
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Dagger is used in production at GitLab, NVIDIA, Speakeasy, and cloud-native engineering teams building portable CI pipelines that run the same locally and in CI.
Dagger, Inc., founded by Solomon Hykes (Docker co-creator), Sam Alba, and Andrea Luzzardi. The project is Apache 2.0 licensed and hosted at github.com/dagger/dagger.
GitHub Actions, CircleCI, and GitLab CI (hosted CI), Earthly (Makefile-inspired portable builds), and Bazel (hermetic build system). Dagger distinguishes itself by running pipelines as code in Go, Python, TypeScript, or PHP inside containers.
Dagger has 320 contributors (GitHub, 2026/04). It is one of the more actively contributed open-source projects in its category, with contributions from both individual developers and corporate engineering teams.
Yes. Dagger is production-ready: it has 15.7k GitHub stars, 320 contributors (GitHub, 2026/04), and is last released Apr 2026. It is used in production at large-scale organizations and has a mature release cadence.
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