mruby/mruby

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

5601 stars · 850 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

mruby is a lightweight implementation of the Ruby programming language, ISO-standard compliant and Ruby 4.x syntax compatible, written in C. It can be embedded and linked into applications, and ships with an interpreter (mruby), an interactive shell (mirb), and a bytecode compiler (mrbc).

Use cases

• embed a scripting language in a C/C++ application
• run Ruby scripts on embedded devices
• compile Ruby programs to bytecode
• add user scripting/plugin support to a game or app
• use a lightweight Ruby interpreter instead of full CRuby
• evaluate Ruby expressions interactively in a REPL

When to choose

• you need a small, embeddable Ruby runtime in C
• you target resource-constrained or embedded environments
• you want to compile Ruby to bytecode or C source for distribution

When to avoid

• you need the full Ruby standard library and gems ecosystem
• you need the latest complete Ruby 4.x feature set and compatibility
• you want a managed, memory-safe runtime without C integration work

Facets

library · maturity stable

interpreter compiler programming-language cli programming-languages embedded-systems developer-tools cross-platform c cpp cross-platform embedded cli windows ruby lightweight-runtime embeddable bytecode-compiler mirb mrbgems linux macos

Member repositories

For agents

markdown · JSON · MCP: product_card(name="mruby/mruby")