CodeBuild Pricing Calculator - EC2, Lambda, Docker & Sandbox

EC2 builds are charged per minute (rounded up to the nearest minute) and offer more compute options including Windows and GPU. Lambda builds are charged per second with sub-second billing, making them ideal for short, infrequent builds. Lambda also offers lower minimum costs for quick builds.

CodeBuild offers 100 build minutes per month with general1.small or arm1.small EC2 compute, and 6,000 build seconds per monthwith lambda.arm.1GB or lambda.x86-64.1GB. Unlike most AWS free tiers, this doesn't expire after 12 months - it's available to both new and existing customers indefinitely.

Docker Image Server provides a persistent Docker daemonthat maintains a shared layer cache across builds. AWS benchmarks show it can reduce Docker image build times by up to 98%. Use it when you have frequent Docker builds that share common base images or layers. Note: It doesn't qualify for free tier.

Sandbox provides an interactive development environmentfor debugging and testing buildspecs. It's billed per second from when you start the sandbox until you terminate it. Ideal for troubleshooting build issues without repeatedly triggering full builds. Note: Sandbox doesn't qualify for free tier.

ARM (Graviton) builds are ~32% cheaper than x86 for EC2 builds and 50% cheaper for Lambda builds. If your build tools and dependencies support ARM, switching architectures is one of the easiest ways to reduce CI/CD costs with no code changes required.

The EC2 free tier (100 build minutes/month) only applies to general1.small or arm1.small compute types. The Lambda free tier (6,000 build seconds/month) only applies to 1GB memory configurations. Other sizes are not eligible for free tier.