seniorRuby
What is the difference between Ruby interpreters (CRuby, JRuby, TruffleRuby)?
Updated May 17, 2026
Short answer
CRuby is C-based, JRuby runs on JVM, and TruffleRuby uses GraalVM for JIT optimization.
Deep explanation
CRuby is the reference implementation using C and MRI VM. JRuby runs Ruby on the JVM, leveraging Java concurrency. TruffleRuby uses GraalVM to JIT compile Ruby into optimized machine code, often outperforming CRuby in long-running workloads.
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