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Vim vs Lem: catalog facts
Vim	Lem
Free Free under the Vim licence, which is GPL-compatible charityware and asks for a donation to…	Free Free and open source.
Windows, macOS, Linux, Command line	macOS, Linux, Command line
Already installed on nearly every server you will ever log into Decades of plugins, and configuration knowledge that does not expire	Extensible in Common Lisp while running Emacs-like and Vim-like modes
The learning curve is the standard example of a steep learning curve Language server and completion support needs plugins that Neovim handles better	Extending it requires learning Common Lisp GUI is in transition from SDL2 to a webview version
Downloadable app	Downloadable app
Open source	Open source
License: Vim	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.