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Quick Answer

Our free online Ruby editor lets you write and run Ruby code directly in your browser. Features full standard library support, syntax highlighting, and instant execution with no installation required.

How It Works

Write your Ruby code in the editor

Click Run to execute your script

View output and errors in the console

Share or download your code

Key Facts

Run Ruby code instantly in your browser
Full Ruby standard library support
Syntax highlighting and error messages
Object-oriented programming support
No Ruby installation required
Share code snippets via URL

Frequently Asked Questions

Which Ruby version is supported?

We support Ruby 3.x with full access to the standard library including Array, Hash, String methods, and built-in classes.

Can I use Ruby gems?

The standard library is available. For external gems, you would need a local Ruby installation with Bundler.

Is Rails supported?

This is a Ruby code runner, not a full Rails environment. For Rails development, use a local setup or cloud IDE.

Can I test Ruby classes and modules?

Yes, you can define and test classes, modules, mixins, and all Ruby OOP features in the editor.