Streamline build, test, and ship with Dagger, a tool for founders and dev teams, backed by 16k+ GitHub stars.
16,067 stars906 forksGoQuality 9/10Updated 7/15/2026100% free ยท open source
What it does
Dagger is a automation engine that streamlines build, test, and deployment of any codebase, running locally, in CI, or directly in the cloud.
Install / run
go install dagger.io/dagger/cmd/dagger@latest
When to use it
โขWhen you need to automate repetitive development tasks across multiple environments
โขWhen you want to integrate automated testing and deployment into your CI/CD pipeline
โขWhen you need to manage complex workflows across different teams and projects
Quick start
1Create a new Dagger configuration file named `dagger.json` in your project root
2Define a `plan` in `dagger.json` to specify the build, test, and deployment steps for your project
3Run `dagger do` to execute the plan and automate the build, test, and deployment process
4Use `dagger login` to authenticate with the Dagger cloud and enable remote execution
5Configure your CI/CD pipeline to run `dagger do` on each code commit
Ready-to-paste prompt
dagger do myproject/build -p myproject/test -p myproject/deploy
Heads up: Dagger requires Go 1.18 or later to be installed on your system, and you need to set the `DAGGER_LOG_LEVEL` environment variable to control the verbosity of the output
Saves to your device
Topics
agents
caching
ci-cd
containers
continuous-deployment
continuous-integration
devops
docker
graphql
workflows
What's inside โ free to inspect
No purchase needed
Read the entire source before you build โ unlike paid marketplaces that hide it behind a buy button.