Dagger vs TeamCity
A side-by-side comparison of two self-hosted ci/cd & build options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Dagger | TeamCity |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Category | CI/CD & Build | CI/CD & Build |
| License | Apache-2.0 | Proprietary |
| Language | Go | Java |
| Setup difficulty | Medium | Medium |
| Min. RAM | 1,024 MB | 4,096 MB |
| Deployment | docker, binary | docker, bare-metal |
| GitHub stars | ★ 16,294 | — |
| First released | 2022 | 2006 |
| Replaces | GitHub Actions, CircleCI | Jenkins, CircleCI |
What are Dagger and TeamCity?
Dagger
Dagger is an open-source CI/CD engine that lets developers define pipelines as code in their preferred language and run them anywhere with a containerized engine. It can be self-hosted to power portable build pipelines.
- Pipelines as code
- Runs anywhere with containers
- Multi-language SDKs
- Built-in caching
TeamCity
TeamCity is a build management and continuous integration server from JetBrains. The Professional edition is free for self-hosting smaller teams and supports many build runners and VCS systems.
- Smart build configuration
- Build chains and dependencies
- Rich VCS integration
- Detailed test reporting
Dagger vs TeamCity: key differences
Dagger is written in Go, while TeamCity is built with Java. Licensing differs — Apache-2.0 for Dagger versus Proprietary for TeamCity. Dagger is the lighter option, starting around 1,024 MB of RAM against 4,096 MB for TeamCity. TeamCity is the more established project (first released 2006), while Dagger arrived in 2022.
Why pick each one
Choose Dagger if…
- Pipelines as real code
- Runs identically anywhere
- Container-level caching
Watch out for
- New concepts to learn
- Container runtime required
Choose TeamCity if…
- Released under the Proprietary license
- First-class Docker support for quick deployment
- Written in Java
Frequently asked questions
Is Dagger or TeamCity better?
Neither is universally better. Dagger has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Dagger and TeamCity free and open-source?
Yes. Dagger is licensed under Apache-2.0 and TeamCity under Proprietary. Both can be self-hosted at no software cost.
Can I run Dagger and TeamCity with Docker?
Dagger: yes. TeamCity: yes.
Which is lighter on resources, Dagger or TeamCity?
Dagger has the smaller minimum footprint at 1,024 MB of RAM, compared to about 4,096 MB for TeamCity. Real-world usage depends on library size, user count, and enabled features.