CLPM

Free plan LinuxMacWindows

What CLPM is

CLPM is a free, BSD-2-licensed package manager for Common Lisp projects on Linux, macOS, and Windows. It manages projects globally or per project, with dependency resolution, lockfiles, and support for Quicklisp, CLPI, and ASDF package formats. Its standalone core downloads and unpacks releases, resolves dependencies, and creates project-specific environments. A portable Common Lisp client works with ASDF and can locate and install missing systems during interactive development. CLPM can install multiple versions of one package at the same time. Bundles lock systems to chosen versions for repeatable development, deployment, and testing, while allowing upper version limits and unreleased source-control versions. Supported sources include Quicklisp, CLPI, and QL-CLPI, with repository references for GitHub, GitLab, or arbitrary Git URLs. Native HTTPS supports protected package transfers. Release downloads include SHA512 checksums and a GPG-signed checksum file. The maker describes CLPM as beta quality and warns it may break or accidentally eat files.

Who it suits

CLPM suits Common Lisp developers who need dependency resolution, lockfiles, or separate project environments across Linux, macOS, and Windows. It also fits users working with supported implementations such as SBCL or CCL.

What it does well

Free and BSD-2 licensed
Supports Linux, macOS, and Windows
Resolves dependencies and supports lockfiles
Installs multiple package versions simultaneously
Supports GitHub, GitLab, and Git sources

What to know first

Maker describes it as beta quality
May break or accidentally eat files
No free trial is listed

Plans

Plan	Billed and limits	Price
CLPM	BSD-2 licensed; beta quality	Free

As clpm.common-lisp.dev lists them, read 12 Oct 2026. The maker's own page has the final word.

Verdict

CLPM combines dependency resolution, lockfiles, multiple package versions, and several Common Lisp sources in one tool. Its beta warning means users should consider that stated risk before relying on it for important work.

Facts from CLPM's own pages

ASDF client: A portable Common Lisp client interfaces with ASDF and can find and install missing systems during interactive development. · clpm.common-lisp.dev, 12 Oct 2026
Core functions: Its standalone core downloads and unpacks releases, resolves dependencies, and manages project-specific environments. · clpm.common-lisp.dev, 12 Oct 2026
Dependency resolution: Yes · clpm.common-lisp.dev, 22 Sept 2026
Dependency versions: CLPM supports installing multiple versions of the same package simultaneously. · clpm.common-lisp.dev, 12 Oct 2026
Download verification: The installation page provides SHA512 checksums and a GPG-signed checksum file for the listed release downloads. · clpm.common-lisp.dev, 12 Oct 2026
Intended users: The project describes binary downloads as convenient for quick installation and source distributions as suited to hackers or users seeking a different feature set. · clpm.common-lisp.dev, 12 Oct 2026
License and maturity: CLPM is BSD-2 licensed and the maker warns it is beta quality, may break, and may accidentally eat files. · clpm.common-lisp.dev, 12 Oct 2026
Lockfile support: Yes · clpm.common-lisp.dev, 22 Sept 2026
Package formats: Quicklisp,CLPI,ASDF · clpm.common-lisp.dev, 22 Sept 2026
Platforms: Prebuilt binaries are listed for 64-bit Windows, macOS, and Linux, including ARM64 builds for macOS and Linux. · clpm.common-lisp.dev, 12 Oct 2026
Purpose: CLPM manages Common Lisp projects in global and project-specific contexts. · clpm.common-lisp.dev, 12 Oct 2026
Repeatable environments: Bundles lock systems at specific versions and support repeatable development, deployment, and testing environments. · clpm.common-lisp.dev, 12 Oct 2026
Repository integrations: Bundle directives can refer to repositories hosted on GitHub, GitLab, or arbitrary Git URLs. · clpm.common-lisp.dev, 12 Oct 2026
Sources: CLPM supports Quicklisp, CLPI, and QL-CLPI source types, and is designed to support multiple sources including internal projects. · clpm.common-lisp.dev, 12 Oct 2026
Support: The maker directs users to email [email protected] for help or issue reports and provides a development mailing list. · clpm.common-lisp.dev, 12 Oct 2026
Supported platforms: macOS,Linux,Windows; Common Lisp implementations including SBCL and CCL · clpm.common-lisp.dev, 22 Sept 2026
Transport security: The project says CLPM natively supports HTTPS, which can help ensure packages have not been tampered with in transit. · clpm.common-lisp.dev, 12 Oct 2026
Version constraints: Bundles allow upper bounds on dependency versions and can specify unreleased versions from source control. · clpm.common-lisp.dev, 12 Oct 2026

Where CLPM stands on Freedom251

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