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OCaml vs Gleam: catalog facts
OCaml	Gleam
Free Free and open source.	Free Free and open source, supported by sponsors.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
Strong type system that catches errors early Native compiler plus interactive toplevel	Static types on the Erlang VM Compiler, build tool, formatter and package manager in one
Smaller library ecosystem than mainstream languages Functional style takes time to learn	Younger language with a smaller community than Erlang or Elixir
Downloadable app	Downloadable app
Open source	Open source
License: LGPL-2.1	License: Apache-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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