Raku Online Compiler / Interpreter
Write and run Raku code online directly from your browser with our free Online Raku Compiler / Interpreter. Test modern Raku syntax, text processing, regular expressions, grammars, functions, and scripting logic without installing Rakudo or configuring a local Raku environment.
How to Use This Raku Compiler
- Write or paste your Raku code
Enter your program in the Code Editor. You can test variables, functions, loops, arrays, hashes, regexes, grammars, classes, and other Raku features supported by the execution environment. - Click the Run button
Select Run to execute your Raku program. If your code contains a syntax or runtime error, review the returned feedback, correct the relevant line, and run it again. - Check the Output screen
Your program result appears in the Output panel. Use the available controls to copy, download, or delete the output before testing another Raku script.
Key Features
- Free Online Raku Compiler / Interpreter: Write and execute Raku programs directly from a modern web browser.
- Zero Installation: No need to install Rakudo or configure a local Raku environment for supported programs.
- Instant Execution: Click Run and quickly view program output or interpreter feedback.
- Text Processing: Experiment with strings, pattern matching, substitutions, and data-processing logic.
- Regex and Grammar Support: Practice Raku’s powerful regex and grammar features for structured text parsing.
- Modern Language Features: Work with functions, classes, signatures, junctions, collections, and other supported Raku concepts.
- Dark and Light Mode: Switch the Code Editor theme for comfortable coding in different environments.
- Output Controls: Copy, download, or clear generated output directly from the Output panel.
1. How do I print output in Raku using say or put?
Raku commonly uses say to print a value followed by a newline.
You can also use put:
For variables:
Enter the code in the Code Editor, click Run, and view the result in the Output screen.
2. Do I need to install Rakudo on my computer to use this compiler?
No. You can use this Online Raku Compiler / Interpreter directly from your browser without installing Rakudo locally for supported programs.
A local Raku setup may still be preferable for larger projects, package management, advanced debugging, external modules, or programs that require direct filesystem and operating-system access.
3. Is Raku the same as Perl 5?
No. Raku was originally developed under the name Perl 6, but it is now a separate programming language with its own syntax, features, ecosystem, and development path.
For example, Raku supports typed parameters and signatures:
Developers familiar with Perl may notice some similarities, but Perl 5 and Raku code are not directly interchangeable.
4. Can I test Raku regexes and grammars in this online editor?
Yes. Regexes and grammars are important Raku features and can be tested when supported by the configured runtime.
A simple regex example:
You can also define reusable grammar rules:
This makes the compiler useful for programmers and students who want to experiment with Raku scripting, text processing, regexes, grammars, and modern language features without setting up a local environment.