> For the complete documentation index, see [llms.txt](https://developer.harness.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.harness.io/continuous-integration/3.0/new-to-harness-ci.md).

# New to Harness CI?

- [Harness Continuous Integration overview](https://developer.harness.io/continuous-integration/3.0/new-to-harness-ci/overview.md): Harness CI simplifies the code development and testing process.
- [Key Concepts](https://developer.harness.io/continuous-integration/3.0/new-to-harness-ci/key-concepts.md): Basic terminology and concepts related to CI pipelines
- [Get Started with Harness CI](https://developer.harness.io/continuous-integration/3.0/new-to-harness-ci/onboarding-guide.md): A self-service onboarding guide for Harness CI.