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Cloud Native Buildpacks Pack

buildpacks.io

Free plan WindowsmacOSLinuxSelf-hosted
Visit buildpacks.io
Spec score 8.1 #11 of 34 in Container Build Tools

What it is

Cloud Native Buildpacks Pack is a free command-line tool for building applications with buildpacks and rebasing the resulting application images. It is maintained by the Cloud Native Buildpacks project and is also available as a Go library. Buildpacks turn application source code into container images that can run on any cloud. Listed capabilities include caching, automatic source detection, modular buildpacks, support for multiple languages and processes, minimal images, reproducible builds and reuse of community buildpacks. Pack supports multi-architecture builds and multiple build-cache backends, and the project lists build-time software bills of materials in CycloneDX, SPDX and Syft JSON formats. The CLI runs on Linux, macOS and Windows; installation options include package managers, container images, scripts and manual installation. Builds need a containerized environment and a daemon such as Docker or Podman, and some setups may need the local Docker socket mounted. The project documents CircleCI, GitLab Auto DevOps and Tekton integrations, as well as kpack for Kubernetes-native builds and image updates. Pack is Apache-2.0 licensed.

Spec sheet

Purpose
Pack is a CLI tool maintained by the Cloud Native Buildpacks project to support the use of buildpacks.Read 2 Oct 2026 · buildpacks.io
Integrations
The project documents a CircleCI orb for running pack commands, GitLab Auto DevOps use of pack, and a Tekton reference task for builds.Read 2 Oct 2026 · buildpacks.io
Support
The project identifies CNCF Slack #buildpacks and its mailing list as contact channels for the team.Read 2 Oct 2026 · buildpacks.io
License
The project is described as an Apache-2.0 licensed project.Read 2 Oct 2026 · buildpacks.io
Build and rebase
Pack can build applications using buildpacks and rebase application images created with buildpacks.Read 2 Oct 2026 · buildpacks.io
Build output
Cloud Native Buildpacks transform application source code into container images that can run on any cloud.Read 2 Oct 2026 · buildpacks.io
Docker socket
The installation docs say some container environments may require mounting the local Docker daemon socket.Read 2 Oct 2026 · buildpacks.io
Features
Listed features include caching, source auto-detection, modular buildpacks, multiple languages and processes, minimal images, rebasing, reproducibility and reuse of community buildpacks.Read 2 Oct 2026 · buildpacks.io
Install options
The CLI is listed for Linux, macOS and Windows, with package-manager, container-image, script and manual installation options.Read 2 Oct 2026 · buildpacks.io
Kubernetes
The docs describe kpack as a Kubernetes-native platform that uses unprivileged Kubernetes primitives for buildpack builds and image updates.Read 2 Oct 2026 · buildpacks.io
Library
Pack is available both as a command-line interface and as a Go library.Read 2 Oct 2026 · buildpacks.io
Runtime requirement
Buildpacks run in a containerized environment, and Pack uses a daemon such as Docker or Podman to create build containers.Read 2 Oct 2026 · buildpacks.io
SBOM
The project lists build-time software bills of materials in CycloneDX, SPDX and Syft JSON formats.Read 2 Oct 2026 · buildpacks.io
Security and maturity
The project reports CNCF graduation on 11 August 2026 following a third-party security audit, an OpenSSF Best Practices badge and adoption of the CNCF Code of Conduct.Read 2 Oct 2026 · buildpacks.io

Plans and prices

Pack Free No paid plans listed; free CLI and Go library Read 2 Oct 2026 · buildpacks.io

Every Cloud Native Buildpacks Pack plan and price →

Strong points and limits

Strong points

  • Free CLI and Go library.
  • Builds and rebases application images.
  • Supports multi-architecture builds and multiple cache backends.
  • Lists three build-time SBOM formats.
  • Linux, macOS and Windows installation options.

Limits

  • Builds require a containerized environment and daemon.
  • Some setups may require mounting the Docker socket.
  • No paid plans are listed.

Who it suits

Pack suits developers and teams building container images from application source with buildpacks, including those who want CLI or Go library access. Its documented integrations and Kubernetes-related kpack option may suit teams working with those environments.

Verdict

Pack combines build, rebase and reporting capabilities in a free tool, with both command-line and Go library access. Its containerized build requirement and daemon setup are important deployment considerations.

Where Specifiction places it

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