Go Online Compiler

Write, compile, and run Go code online for free. Use custom standard input and view program output without installing the Go toolchain.

Run the program
Output
Run Go Code Online
This free Go online compiler runs a single source file named main.go in an isolated execution environment. Edit the starter program, provide optional input, and select Run to see standard output and compiler errors.
How to Use the Go Compiler
  1. Write or paste a complete Go program in the code editor.
  2. Add input in the Input tab when the program reads from standard input.
  3. Select Run. Compilation errors, runtime errors, and program output appear in the Output panel.
Go Execution Notes
Use package main and define a main function. The source is compiled before the resulting program is executed.
Programs can read values using fmt.Scan, bufio.Reader, or os.Stdin. Execution time, memory, processes, output size, and network access are limited to keep the shared compiler responsive and secure.
Frequently Asked Questions
Do I need to install Go?
No. Compilation and execution happen remotely, so the editor works from a modern browser on desktop or mobile.
Can I provide input to my program?
Yes. Enter one or more lines in the Input tab before selecting Run. The text is passed to the program through standard input.
Continue learning with the Go tutorials and examples.