Compare software

RustC3
Free

Free and open source.

 Free

Free and open source; the compiler and standard library use LGPL-3.0 and MIT licences.

Windows, macOS, Linux, Command line Windows, Linux, Web, Command line
  • Memory and thread safety checked at compile time
  • No garbage collector, suited to performance-critical and embedded work
  • Syntax close to C, with a C-to-C3 guide
  • Optionals, generics and compile-time reflection
  • Ownership model takes time to learn
  • Compile times can be long on large projects
  • Pre-1.0 language that may still change
  • Smaller ecosystem than C or C++
Downloadable app Downloadable app, Web application
Open source Open source
License: MIT OR Apache-2.0 License: LGPL-3.0-or-later, MIT
No account needed No account needed
Works offline Works offline

Checked September 23, 2026

Checked October 2, 2026

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