Perl 5.38.2

Online Perl Compiler & Editor

Name: myCompiler Perl
Author: myCompiler

myCompiler is a free online Perl compiler, editor and code runner that lets you write, run, and share Perl code directly in your browser. It works as your Perl playground, sandbox, fiddle, cloud compiler, and online REPL. No downloads, no installation needed. Just open the editor and start coding with syntax highlighting, autocomplete, and instant output.

Start coding in Perl How it works

27+ languages Used by 1M+ developers Free forever

main.pl

use strict;
use warnings;

my @words = ("hello", "world", "perl");
my @upper = map { uc $_ } @words;

print "Words: @upper\n";
print "Count: " . scalar(@words) . "\n";

Output

Words: HELLO WORLD PERL Count: 3

How to run Perl code online

Three steps to go from idea to running Perl code in this online playground. No account required.

Write your code

Open the Perl editor and start writing. The smart editor gives you syntax highlighting, autocomplete, and error detection as you type.

Click Run

Hit the Run button or press +Enter to run your Perl code on secure, sandboxed cloud servers.

See results

Output appears instantly in the integrated terminal. Errors and exceptions show up with clear, helpful messages.

Everything you need to code in Perl

A complete online Perl IDE and coding playground in your browser. Write, run, and share code without any setup.

Zero setup required

Start coding in seconds with this browser-based Perl interpreter. No downloads, no installations, no environment configuration. Open your browser, go to myCompiler, and start writing Perl code immediately.

Works on any device with a web browser. Desktop, laptop, tablet, phone, Chromebook. There is nothing to install and nothing to configure.

Feature-rich code editor

Write Perl with a professional-grade code editor built into your browser. Syntax highlighting colors your code for readability, making keywords, strings, and functions easy to distinguish at a glance.

Intelligent autocomplete suggests methods and properties as you type, and real-time error detection catches mistakes before you run your code.

Multi-file projects

Create and manage multiple files in a single project. Use the file sidebar to organize your code into modules, then import them across files just like in a desktop IDE.

Build modular applications with proper project structure. Each file is editable, and you can switch between them instantly.

Run code instantly

Click the Run button or press +Enter to execute your Perl code instantly. This online code runner displays output immediately in the integrated terminal panel. Your code runs on secure, sandboxed cloud servers and results appear in seconds.

Error messages and tracebacks are displayed clearly, making it easy to find and fix issues. The terminal supports ANSI colors for rich output formatting.

Ready to try it? Write and run your first Perl program in seconds.

Open Perl editor

Perl on myCompiler

myCompiler runs Perl 5.38.2, always up to date with the latest stable release. You get a full browser-based IDE with syntax highlighting, intelligent code completion, multi-file project support, a built-in terminal for real-time output, and standard input (stdin) for interactive programs. Write, compile, run, and debug Perl code on any device. Desktop, laptop, tablet, phone, Chromebook. Zero downloads, zero configuration, and no sign-up required. Save your programs with a unique URL and share them with anyone. You can also embed a working Perl editor on your own website.

Use this online Perl playground as a quick code executor for testing snippets, a coding sandbox for learning, or a cloud compiler for coding interview preparation. The editor includes dark mode for comfortable coding, keyboard shortcuts for faster workflows, and clear error messages with line numbers so you can debug quickly. Students use it for homework and practice. Teachers use it to share working examples. Developers use it to prototype ideas. myCompiler is beginner-friendly, fast, and completely free. It works in any modern web browser.

Start coding in Perl

Perl code examples

Common Perl patterns you can try in the online compiler. Each example is ready to run.

Hello World in Perl

main.pl

print "Hello, World!\n";

Variables and Data Types in Perl

main.pl

use strict;
use warnings;

my $name = "Alice";
my $age = 30;
my $pi = 3.14;
print "$name is $age years old\n";

If-Else Conditionals in Perl

main.pl

use strict;
use warnings;

my $x = 10;
if ($x > 0) {
    print "Positive\n";
} elsif ($x == 0) {
    print "Zero\n";
} else {
    print "Negative\n";
}

For and While Loops in Perl

main.pl

use strict;
use warnings;

for my $i (1..5) {
    print "Count: $i\n";
}

my @fruits = ("apple", "banana", "cherry");
foreach my $fruit (@fruits) {
    print "$fruit\n";
}

Functions in Perl

main.pl

use strict;
use warnings;

sub greet {
    my ($name, $greeting) = @_;
    $greeting //= "Hello";
    return "$greeting, $name!";
}

print greet("Alice") . "\n";
print greet("Bob", "Hi") . "\n";

Arrays and Collections in Perl

main.pl

use strict;
use warnings;

my @fruits = ("apple", "banana", "cherry");
push @fruits, "date";
print "$fruits[1]\n";

my %person = (name => "Alice", age => 30);
print "$person{name}\n";

Object-Oriented Perl

main.pl

package Dog;
sub new {
    my ($class, %args) = @_;
    return bless { name => $args{name}, breed => $args{breed} }, $class;
}
sub bark { return $_[0]->{name} . " says Woof!"; }

package main;
my $dog = Dog->new(name => "Rex", breed => "Labrador");
print $dog->bark() . "\n";

Error Handling in Perl

main.pl

use strict;
use warnings;

eval {
    die "Something went wrong";
};
if ($@) {
    print "Caught: $@";
}

open(my $fh, "<", "nonexistent.txt")
    or print "Cannot open file: $!\n";

File I/O in Perl

main.pl

use strict;
use warnings;

# Write to file
open(my $out, ">", "output.txt") or die "Cannot write: $!";
print $out "Hello, File!\n";
close($out);

# Read from file
open(my $in, "<", "output.txt") or die "Cannot read: $!";
while (my $line = <$in>) {
    print $line;
}
close($in);

Regular Expressions in Perl

main.pl

use strict;
use warnings;

my $text = "Hello, World! Phone: 123-456-7890";

# Match
if ($text =~ /(\d{3}-\d{3}-\d{4})/) {
    print "Phone: $1\n";
}

# Substitute
(my $clean = $text) =~ s/\d/-/g;
print "$clean\n";

# Split
my @words = split(/\s+/, "one two three");
print join(", ", @words) . "\n";

Try these examples in the editor

How to take input in Perl online

myCompiler supports standard input (stdin) for Perl programs. Use Perl's standard input functions to read user input. Enter your input data in the stdin panel before running your program.

This works for both single-line and multi-line input. You can read strings and convert to numbers using the language's built-in I/O functions.

Try it yourself

main.pl stdin supported

my $name = <STDIN>;
chomp $name;
my $age = <STDIN>;
chomp $age;

print "Hello $name!\n";
print "You'll be " . ($age + 1) . " next year.\n";

stdin

Alice
25

Output

Hello Alice!
You'll be 26 next year.

No setup, no sign-up. Start writing Perl code right now.

Start coding now

Getting started with Perl online

You can start writing and running Perl code right now without installing anything. Type your code, and click Run. This free Perl code runner executes your program instantly and displays the output in the terminal panel below the editor. Open the Perl online editor, type your code, and click Run.

If you're new to Perl, use this online Perl playground to start with the basics like variables, data types, conditionals, and loops. The code examples above cover all the fundamentals you need to get started. Each example can be copied into the sandbox and run immediately. No setup, no configuration.

As you progress, try creating multi-file projects, using libraries, and sharing your programs with others via URL. Sign up for a free account to save your work and build a personal library of programs. myCompiler works as a full online Perl IDE right in your browser.

Who uses myCompiler

Whether you're learning to code, preparing for interviews, or prototyping ideas, myCompiler is built for you.

Students & Learners

Practice exercises, complete homework assignments, and experiment with code without installing anything on school or personal computers.

Teachers & Educators

Share code examples with students via unique URLs. Embed the compiler in course materials so students can run examples directly in the browser.

Interview Candidates

Practice coding interview problems, test algorithms, and verify solutions quickly during preparation for technical interviews.

Professional Developers

Quickly prototype ideas, test code snippets, or try out a library without setting up a local environment. Great for quick experiments.

Content Creators & Bloggers

Embed interactive examples in blog posts, tutorials, and documentation so readers can run code without leaving the page.

Teams & Collaborators

Share code snippets with colleagues via URLs. Others can view, run, and fork your code to build on your work.

myCompiler vs. local IDE

Why use an online Perl compiler instead of installing one locally?

Feature	myCompiler	Local IDE
Setup time	Instant	Minutes to hours
Installation	None required	Perl + IDE required
Device support	Any browser	Desktop only
Sharing code	One-click URL	Manual (file, git, etc.)
Languages	27+ in one place	One at a time
Cost	Free forever	Free to $$$
Works on Chromebook	Yes	Limited

What is Perl?

Perl is a high-level, general-purpose programming language created by Larry Wall and first released in 1987. Perl was originally designed for text processing and report generation on Unix systems. Its motto, _"There's more than one way to do it"_, reflects its philosophy of flexibility and expressiveness. Perl's regex engine is one of the most powerful in any language and influenced the design of regular expressions in Python, Java, .NET, and PHP.

Perl's syntax borrows from C, AWK, sed, and Unix shell, making it feel natural to Unix administrators. It features powerful string handling, a rich CPAN module repository (over 200,000 modules), and capabilities for file I/O, process management, networking, and database access. Perl 5 remains widely deployed in legacy systems, while Raku (formerly Perl 6) is a separate language with a redesigned type system.

What is Perl used for?

Perl is used for text processing and log analysis, extracting and transforming data from log files and reports, bioinformatics (BioPerl is a major toolkit), system administration scripts, CGI web programming (though now largely historical), network programming, and data extraction and transformation (ETL). CPAN's breadth makes Perl capable of almost any scripting task.

Perl for beginners

Perl has a reputation for being cryptic, its special variables ($_, @_), context sensitivity, and write-only code style can be challenging. However, for someone working in Unix system administration or bioinformatics, Perl's power for text processing is unmatched. Use myCompiler's online Perl compiler to learn Perl's regex capabilities, string manipulation, and array/hash data structures without installing Perl locally.

Perl vs other languages

Compared to Python, Perl has more powerful built-in regex but Python has cleaner syntax and a larger modern ecosystem. Compared to AWK and sed, Perl subsumes their capabilities in a full programming language. Compared to Ruby, both were influenced by Perl, but Ruby has a cleaner syntax and the Rails ecosystem, while Perl has deeper legacy in systems administration and bioinformatics.

Why use an online Perl compiler?

An online Perl compiler, also called a Perl sandbox or Perl runner, lets you run Perl scripts directly in your browser without installing Perl locally. This is ideal for learning Perl's regular expression syntax, practicing text processing and string manipulation, testing one-liners, and experimenting with Perl's array and hash operations without any local setup.

myCompiler's online Perl IDE runs Perl 5 with the standard library. You can use all of Perl's built-in functions, regular expressions, file I/O, and modules from the standard distribution. Provide stdin input for text processing scripts, save and share your programs via URL, all free.

Why is Perl so popular?

Perl's popularity peaked in the early 2000s when it dominated CGI web programming and system administration. While Python and Ruby took much of its mindshare in subsequent years, Perl remains deeply embedded in bioinformatics, legacy enterprise systems, and Unix administration. CPAN's massive repository of tested modules for every conceivable task means Perl can be the fastest way to solve certain problems. Perl 5 continues to receive maintenance updates, and its installed base across servers worldwide is enormous.

Perl career opportunities

Perl skills are valued for bioinformatics developer, system administrator, DevOps engineer (especially in legacy environments), and data processing engineer roles. The bioinformatics field in particular still has strong Perl usage through BioPerl. Legacy Perl systems at enterprises and ISPs also create ongoing maintenance demand.

Try Perl online Free · No sign-up needed

Keyboard shortcuts

Code faster with these keyboard shortcuts in the myCompiler editor.

Run code

+ Enter

Save program

+ S

Toggle comment

+ /

Indent line

Tab

Unindent line

Shift + Tab

Undo

+ Z

Select next occurrence

+ D

Find & replace

+ H

Embed the Perl compiler on your website

Add an interactive Perl compiler to your website, blog, or learning platform. Readers can write and run Perl code directly on your page without leaving it.

Perfect for technical tutorials, coding courses, documentation, and educational content. Save a program on myCompiler and use the embed link to add it to any webpage.

Embedded Perl compiler, editor and code runner

HTML

<iframe
src="https://www.mycompiler.io
    /embed/perl"
width="100%"
height="400"
frameborder="0">
</iframe>

Why developers choose myCompiler

A full-featured online IDE for Perl and 27+ other programming languages.

27+ Languages

Python, JavaScript, Java, C++, Rust, Go, TypeScript, C#, and many more. All compilers and interpreters in one place. Switch languages instantly.

Dark & Light Mode

Switch between light and dark themes with one click. Code comfortably in any lighting condition, day or night.

Mobile Friendly

Fully responsive editor optimized for phones, tablets, and Chromebooks. Code on any device with a web browser. No app download needed.

Save & Share Code

Save programs to your account, share via unique URLs, and let others view, fork, and run your code. Great for collaboration and code reviews.

Tags & Organization

Organize your saved programs with tags and find them quickly with search and filters. Build a personal library of code snippets and solutions.

No Account Required

Start writing and running code immediately. No sign-up, no email, no credit card. Create a free account later only if you want to save your work.

Explore more programming languages

myCompiler supports 27+ languages. Switch between them anytime. All free, all in one place.

View all 27+ languages

Frequently asked questions

Common questions about using the online Perl compiler, playground, and code runner.

Yes! myCompiler is completely free for all supported languages including Perl. There are no subscriptions, no premium tiers, and no hidden costs. Every feature is available at no charge.

myCompiler keeps its Perl environment up to date. You can see the exact version on the language details section of this page. We regularly update all language runtimes to their latest stable versions.

Yes. Perl has world-class regular expression support built into the language. You can use pattern matching, substitution, and all regex features including lookahead, lookbehind, and named captures on myCompiler.

Simply open the Perl editor, write or paste your code, and click the Run button. Your code will be executed on our servers and the output will appear in the terminal panel within seconds.

Yes. Click Save to store your program. You will receive a unique URL that you can share with anyone. Recipients can view, fork, and run your code.

Yes. myCompiler supports multi-file projects. You can create, rename, and delete files in the sidebar. This lets you organize your Perl code just like in a local IDE.

Yes. All code runs in isolated containers on our servers. Each execution gets its own sandboxed environment that is destroyed after completion. Your code cannot affect other users or our infrastructure.

Yes. myCompiler has a responsive design optimized for phones and tablets. You can write and run Perl code on the go. The mobile interface uses tabs for switching between the editor, output, and file panels.

Yes. Click the Input tab in the bottom panel, type or paste your input data, then click Run. Your program will read from the input you provided.

Execution is fast. Code runs on our optimized cloud infrastructure and output typically appears within seconds. Execution time depends on the complexity of your program.

Yes. myCompiler provides an embed feature. You can copy an iframe snippet and paste it into your website, blog, or documentation. Visitors can edit and run code directly on your page.

myCompiler supports common editor shortcuts including Run (Ctrl/Cmd+Enter), Save (Ctrl/Cmd+S), Find (Ctrl/Cmd+F), and more. See the keyboard shortcuts section on this page for the full list.

No. myCompiler requires an internet connection because code is compiled and executed on our cloud servers. The editor itself loads in your browser, but running code requires connectivity.

myCompiler offers a fast, free, zero-setup environment with a modern code editor, multi-file support, dark mode, and instant sharing. It is ideal for learning, prototyping, interviews, and sharing code examples.

Yes. myCompiler is great for practicing algorithms and coding problems. You can write Perl code, provide custom input, and test your solutions instantly. Save your work and come back to it anytime.

Use print statements or console output to trace your program's behavior. myCompiler shows all standard output and error messages in the terminal panel. Error messages include line numbers to help you locate issues.

Ready to write Perl code?

Open the free Perl playground and start coding immediately. No downloads, no account required.

Start coding in Perl

Free · No sign-up required · Perl 5.38.2