Go 1.19.13

Online Go Compiler & Editor

Name: myCompiler Go
Author: myCompiler

myCompiler is a free online Go compiler, editor and code runner that lets you write, run, and share Go code directly in your browser. It works as your Go 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 Go How it works

27+ languages Used by 1M+ developers Free forever

main.go

package main

import "fmt"

func main() {
    names := []string{"Alice", "Bob", "Charlie"}
    for i, name := range names {
        fmt.Printf("%d. Hello, %s!\n", i+1, name)
    }
}

Output

1. Hello, Alice! 2. Hello, Bob! 3. Hello, Charlie!

How to run Go code online

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

Write your code

Open the Go 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 Go 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 Go

A complete online Go 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 Go interpreter. No downloads, no installations, no environment configuration. Open your browser, go to myCompiler, and start writing Go 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 Go 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 Go 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 Go program in seconds.

Open Go editor

Go on myCompiler

myCompiler runs Go 1.19.13, 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 Go 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 Go editor on your own website.

Use this online Go 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 Go

Go code examples

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

Hello World in Go

main.go

package main
import "fmt"
func main() {
    fmt.Println("Hello, World!")
}

Variables and Data Types in Go

main.go

package main
import "fmt"
func main() {
    name := "Alice"
    age := 30
    height := 5.6
    fmt.Printf("%s is %d years old\n", name, age)
    fmt.Printf("Height: %.1f\n", height)
}

If-Else Conditionals in Go

main.go

package main
import "fmt"
func main() {
    x := 10
    if x > 0 {
        fmt.Println("Positive")
    } else if x == 0 {
        fmt.Println("Zero")
    } else {
        fmt.Println("Negative")
    }
}

For and While Loops in Go

main.go

package main
import "fmt"
func main() {
    for i := 0; i < 5; i++ {
        fmt.Printf("Count: %d\n", i)
    }
    fruits := []string{"apple", "banana", "cherry"}
    for _, fruit := range fruits {
        fmt.Println(fruit)
    }
}

Functions in Go

main.go

package main
import "fmt"
func greet(name string, greeting ...string) string {
    g := "Hello"
    if len(greeting) > 0 { g = greeting[0] }
    return fmt.Sprintf("%s, %s!", g, name)
}
func main() {
    fmt.Println(greet("Alice"))
    fmt.Println(greet("Bob", "Hi"))
}

Arrays and Collections in Go

main.go

package main
import "fmt"
func main() {
    fruits := []string{"apple", "banana", "cherry"}
    fruits = append(fruits, "date")
    fmt.Println(fruits[1])
    person := map[string]interface{}{"name": "Alice", "age": 30}
    fmt.Println(person["name"])
}

Structs and Methods in Go

main.go

package main
import "fmt"
type Dog struct {
    Name  string
    Breed string
}
func (d Dog) Bark() string {
    return fmt.Sprintf("%s says Woof!", d.Name)
}
func main() {
    dog := Dog{Name: "Rex", Breed: "Labrador"}
    fmt.Println(dog.Bark())
}

Error Handling in Go

main.go

package main
import (
    "fmt"
    "strconv"
)
func main() {
    val, err := strconv.Atoi("not a number")
    if err != nil {
        fmt.Printf("Error: %v\n", err)
    } else {
        fmt.Println(val)
    }
}

File I/O in Go

main.go

package main
import (
    "fmt"
    "os"
)
func main() {
    os.WriteFile("output.txt", []byte("Hello, File!"), 0644)
    content, _ := os.ReadFile("output.txt")
    fmt.Println(string(content))
}

Goroutines in Go

main.go

package main
import (
    "fmt"
    "sync"
)
func main() {
    var wg sync.WaitGroup
    for i := 0; i < 3; i++ {
        wg.Add(1)
        go func(n int) {
            defer wg.Done()
            fmt.Printf("Goroutine %d\n", n)
        }(i)
    }
    wg.Wait()
}

Try these examples in the editor

How to take input in Go online

myCompiler supports standard input (stdin) for Go programs. Use Go'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.go stdin supported

package main

import (
    "bufio"
    "fmt"
    "os"
    "strconv"
    "strings"
)

func main() {
    reader := bufio.NewReader(os.Stdin)
    name, _ := reader.ReadString('\n')
    name = strings.TrimSpace(name)
    ageStr, _ := reader.ReadString('\n')
    age, _ := strconv.Atoi(strings.TrimSpace(ageStr))

    fmt.Printf("Hello %s!\n", name)
    fmt.Printf("You'll be %d next year.\n", age+1)
}

stdin

Alice
25

Output

Hello Alice!
You'll be 26 next year.

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

Start coding now

Getting started with Go online

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

If you're new to Go, use this online Go 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 Go 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 Go compiler instead of installing one locally?

Feature	myCompiler	Local IDE
Setup time	Instant	Minutes to hours
Installation	None required	Go + 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 Go?

Go (also called Golang) is a statically typed, compiled programming language designed at Google by Robert Griesemer, Rob Pike, and Ken Thompson. Released as open source in 2009, Go was built to address the challenges of large-scale software development, fast compilation, straightforward dependency management, and built-in concurrency support.

Go's design prioritizes simplicity and clarity. It has a minimal feature set compared to languages like C++ or Java, no inheritance, no generics until 1.18, no exceptions, which results in highly readable, maintainable code. Go compiles to a single statically linked binary, making deployment straightforward.

What is Go used for?

Go is used for cloud infrastructure and DevOps tools, Docker, Kubernetes, Terraform, and Prometheus are all written in Go. It powers microservices at companies like Uber, Dropbox, and Twitch, web APIs and servers with high throughput, command-line tools, and network programming. Its performance and concurrency model make it ideal for systems that handle thousands of simultaneous requests.

Go for beginners

Go is an excellent second language for developers who know Python or JavaScript and want to learn systems programming and concurrency. Its simple syntax, strong standard library, and fast compile times reduce friction. Go's strict compiler catches errors early, unused imports and unused variables are compile errors. Use myCompiler's online Go compiler to practice goroutines, channels, and Go's unique approach to interfaces.

Go vs other languages

Compared to Rust, Go is significantly easier to learn and write, while Rust offers finer memory control and better performance for systems-level code. Compared to Java, Go has a simpler syntax, faster startup times, and a leaner runtime, but Java has a more mature ecosystem. Compared to Python, Go is much faster and more explicit, making it better for performance-critical services, while Python remains easier for scripting and data science.

Why use an online Go compiler?

An online Go compiler, also called a Go playground or Golang sandbox, lets you compile and run Go code directly in your browser without installing the Go toolchain. It is ideal for learning Go's concurrency model, experimenting with goroutines and channels, testing interface implementations, and sharing code examples without any local environment.

myCompiler's online Go IDE uses the official Go compiler and supports the full standard library including fmt, net/http, sync, encoding/json, and more. Run concurrent programs with goroutines, save your code, and share it via URL, all free.

Why is Go so popular?

Go's popularity has surged because it fills a gap between high-level languages like Python and low-level languages like C. It is fast, simple, and built for concurrency, three attributes perfectly suited for cloud-native development. The rise of Docker and Kubernetes (both written in Go) brought Go to the attention of the entire infrastructure industry. Go consistently ranks in the top 10 on TIOBE and is one of the highest-paying languages on Stack Overflow's survey.

Go career opportunities

Go developers are in high demand for backend engineer, DevOps/SRE engineer, cloud infrastructure engineer, and platform engineer roles. Companies like Google, Cloudflare, Uber, and HashiCorp rely heavily on Go. As cloud-native development continues to grow, Go expertise is increasingly valuable and commands premium salaries.

Try Go 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 Go compiler on your website

Add an interactive Go compiler to your website, blog, or learning platform. Readers can write and run Go 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 Go compiler, editor and code runner

HTML

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

Why developers choose myCompiler

A full-featured online IDE for Go 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 Go compiler, playground, and code runner.

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

myCompiler keeps its Go 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. You can use goroutines, channels, and all of Go's concurrency primitives on myCompiler. Write concurrent programs and see the output of multiple goroutines in the terminal.

Simply open the Go 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 Go 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 Go 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 Go 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 Go code?

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

Start coding in Go

Free · No sign-up required · Go 1.19.13