Quicklisp
The facts below are what the maker publishes about Quicklisp, checked and dated. Our editors have not written about it yet.
Plans and prices
From Quicklisp's own pricing page, checked 12 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Quicklisp | Free | Common Lisp library manager · provided as-is without warranty |
The facts
Each one read from Quicklisp's own pages, with the date it was checked.
What it does
- Adding projects
- The FAQ says people can request a public library be added by creating a GitHub request or emailing the maker.checked 12 Oct 2026
- Automatic dependencies
- Quicklisp automatically downloads supporting software needed to load a system.checked 12 Oct 2026
- Dependency resolution
- Yeschecked 22 Sep 2026
- Find libraries
- Users can search available systems by substring with `ql:system-apropos`.checked 12 Oct 2026
- Historical library sets
- The site describes returning to a previous set of libraries as useful when a project depends on the library universe from a particular point in time.checked 12 Oct 2026
- Install and load
- After installation, users can load a system with `ql:quickload`, which automatically downloads supporting software it needs.checked 12 Oct 2026
- Integrity verification
- The installer download has a detached PGP signature that users can verify against the Quicklisp release signing key; the site also publishes a SHA-256 hash.checked 12 Oct 2026
- Library catalog
- The site says Quicklisp works with over 1,500 libraries.checked 12 Oct 2026
- License and warranty
- The site provides MIT-style license terms and says Quicklisp is provided as-is without warranty.checked 12 Oct 2026
- Local projects
- `ql:quickload` can load local systems outside Quicklisp and automatically load dependencies available through Quicklisp.checked 12 Oct 2026
- Offline installation
- Yeschecked 22 Sep 2026
- Package formats
- Common Lisp systems/libraries and source archiveschecked 22 Sep 2026
- Private distributions
- The FAQ says users can make private repositories of Quicklisp software called dists, but that this is not documented there.checked 12 Oct 2026
- Proxy limitation
- The FAQ says proxy support is limited to plain HTTP and does not support proxy authentication.checked 12 Oct 2026
- Proxy limits
- The FAQ says proxy use is supported, but only plain HTTP is supported directly and proxy authentication is not yet supported.checked 12 Oct 2026
- Purpose
- Quicklisp is a library manager for Common Lisp that downloads, installs, and loads libraries.checked 12 Oct 2026
- Remove libraries
- `ql:uninstall` deletes a system’s archive, unpacked source, and associated Quicklisp metadata, and clears ASDF’s system cache.checked 12 Oct 2026
- Search
- The system-apropos command searches for available systems by a text substring.checked 12 Oct 2026
- Security
- The installer has a detached PGP signature, and the site provides a release signing key fingerprint for verification.checked 12 Oct 2026
- Support
- The site directs questions to Zach Beane by email, the Quicklisp discussion group mailing list, or the #quicklisp IRC channel.checked 12 Oct 2026
- Supported implementations
- The site lists ABCL, Allegro CL, Clasp, Clozure CL, CLISP, CMUCL, ECL, LispWorks, MKCL, SBCL, and Scieneer CL.checked 12 Oct 2026
- Supported Lisp implementations
- The site lists ABCL, Allegro CL, Clasp, Clozure CL, CLISP, CMUCL, ECL, LispWorks, MKCL, SBCL, and Scieneer CL.checked 12 Oct 2026
Where it runs
- Platforms
- The site lists Linux, Mac OS X, and Windows support.checked 12 Oct 2026
- Supported platforms
- Linux,Mac OS X,Windowschecked 22 Sep 2026
