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Rustlings vs Exercism: catalog facts
Rustlings	Exercism
Free Free and open source.	Free Free to use.
Windows, macOS, Linux, Command line	Web
Learn by fixing real compiler errors Runner gives immediate feedback as you edit	Exercises in dozens of programming languages Optional feedback from mentors
Requires a Rust toolchain installed first Exercises are short and do not build larger projects	Mentor availability can vary by language Focused on practice exercises rather than full courses
Downloadable app	Web application
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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