Run your code to see output here.
Browser-based compiler and playground for Ruby — Progsity IDE.
Ruby blends readable syntax with powerful metaprogramming—popularized by Rails but still beloved for scripting and DevOps. This Ruby playground runs your scripts with MRI-style behavior so you can practice enumerables, blocks, and string ergonomics in the browser.
Output goes to stdout; errors show as stack traces in stderr. It is a friendly environment to try Enumerable methods and small CLI-style logic.
Sign in to save snippets you reuse when teaching or blogging about Ruby idioms.
Yes. Execution is free; snippet storage follows account limits.
A modern MRI-compatible runtime in the sandbox. Print RUBY_VERSION to verify.
Phase 1 focuses on the standard library—no arbitrary gem installs.
Yes after sign-in.
Ruby is interpreted; you still get quick feedback loops like an online playground.
Tap “Try this” to load sample code into the editor above.
3.times { |i| puts "step #{i}" }nums = [1, 2, 3, 4, 5]
puts nums.select { |x| x.even? }.inspecth = { a: 1, b: 2 }
puts h.merge(c: 3).inspectname = "learner"
puts "Hello, #{name.upcase}!"Run your code to see output here.