Buildkite
CI/CD pipelines that run on your own infrastructure at any scale.
What is Buildkite?
Buildkite is a CI/CD platform for building, testing, and deploying software, distinguished by a hybrid architecture where the control plane is hosted but build agents run on infrastructure you control, whether that's your own servers, Mac hardware, GPUs, or Kubernetes. Pipelines support dynamic steps, conditional logic, and wait/block steps for approval gates. Beyond core pipelines, Buildkite offers a Test Engine for flaky test detection and analytics, package registries for supply-chain security, and a Mobile Delivery Cloud tuned for iOS and Android release workflows. It's used by large-scale engineering teams; Buildkite cites Uber running 100,000 concurrent agents and cutting monorepo build times in half.
SpecificationsAI-estimated
Key Features of Buildkite
Use Cases for Buildkite
Large monorepo CI
Run parallelized builds and tests across a large codebase using self-hosted agents at scale.
Flaky test management
Use Test Engine to detect, quarantine, and analyze flaky tests across CI runs.
Mobile app delivery
Build, sign, and distribute iOS and Android apps through the Mobile Delivery Cloud.
Migrating off Jenkins
Move existing self-managed CI workflows to a hosted control plane while keeping agents in your own infrastructure.
Pros & Cons of Buildkite
Pros
- Hybrid model keeps source code and secrets on your own infrastructure
- Scales to very high concurrency for large monorepos
- Test Engine adds flaky-test detection beyond basic CI
- Flexible agent types including Mac, GPU, and Kubernetes
Cons
- Requires managing and maintaining your own build agents
- Pro tier pricing is per active user, which can add up for larger teams
- Enterprise features require a custom sales conversation
Frequently Asked Questions
Does Buildkite host my build agents?
No, Buildkite hosts the control plane but build agents run on your own infrastructure, such as your servers, Mac hardware, or Kubernetes cluster.
Is there a free Buildkite plan?
Yes, the Personal plan is free forever with 3 concurrent jobs and 1 user.
What is Buildkite Test Engine?
It's a testing feature that detects flaky tests, splits test suites intelligently, and provides analytics across testing frameworks.
Can Buildkite run on Kubernetes?
Yes, Buildkite supports Kubernetes agents alongside Linux, Mac, and GPU agents.
Pricing Overview
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