Go (Golang) Formatter & Validator

What is Go (Golang) Formatting?

It is the process of arranging Go source code in a clean and consistent way so it is easy to read and understand. It ensures proper indentation, uniform spacing, and consistent line breaks throughout the code. Well-formatted Go code follows standard style guidelines, making it easier for developers to review, debug, and maintain..

Go (Golang) Validation

Go validation checks whether your Go code is correct and error-free before running it. It catches syntax mistakes or structural problems that would stop the program from compiling and running properly..

Common Errors

Common Go errors usually occur when code is not written or structured correctly. These errors include syntax mistakes, improper formatting, unused variables or imports, incorrect function definitions, and misplaced brackets..

Well-Formed Go (Golang)

Well-formed Go code is code that follows correct syntax rules and standard Go formatting practices. It is properly structured, easy for other developers to read, and written in a consistent Go style.

How To Use Go Formatter & Validator

📝 Step 1: Enter Go Code

Paste your Go code in the input area. Supports complete Go programs, functions, or snippets.

⚙️ Step 2: Choose Formatting Style

Select 'gofmt' for standard formatting or 'goimports' to also organize imports.

🔧 Step 3: Format or Validate

Click "Format Code" to beautify with proper indentation. Click "Validate Code" to check for syntax errors.

📋 Step 4: Copy or Download

Use the "Copy" button to copy formatted code to clipboard, or "Download" to save as .go file.

💡 Pro Tips

Use the Sample button to load an example program
Validation checks: missing imports, incorrect syntax, unused variables, bracket mismatches
Formatting follows official gofmt standards (tabs for indentation)
Works with complete packages and multiple files

🔍 Example

// Before formatting:
package main

import "fmt"

func main() {
  x:=5
  if x>3 {
    fmt.Println("Hello")
  }
}

// After formatting:
package main

import "fmt"

func main() {
    x := 5
    if x > 3 {
        fmt.Println("Hello")
    }
}

Frequently Asked Questions

What Go formatting standards are supported? ▼

We support official Go formatting standards as defined by `gofmt` and `goimports`. This includes proper indentation with tabs, spacing around operators, and consistent brace placement. `goimports` additionally organizes and adds missing imports.

Does it validate all Go syntax? ▼

The validator checks for common syntax errors including: missing packages, incorrect import statements, unused variables, mismatched braces, incorrect function declarations, type mismatches, and basic semantic rules. It's designed for standard Go code validation.

What formatting options are available? ▼

You can choose between `gofmt` (standard formatting) and `goimports` (formatting + import management). Both add proper indentation, spacing around operators, line breaks, and consistent brace placement following Go idioms.

Can I format multiple Go files? ▼

Yes! The tool handles multiple structs, functions, and even complete packages. Each element is formatted independently while maintaining overall code readability and Go standards.

Is my Go code secure? ▼

Absolutely. All processing happens in your browser. Your Go code is never sent to our servers. It's completely client-side for privacy and security, just like the SQL formatter.

What are common Go errors it detects? ▼

Common errors include: unused imports or variables, missing packages, incorrect function signatures, mismatched types, improper error handling, missing return statements, and incorrect struct field definitions.

Does it work with Go modules? ▼

Yes, the formatter supports code that uses Go modules. It recognizes module paths in imports and maintains proper import grouping. The validator checks for basic module-related syntax.

How accurate is the validation? ▼

The validator catches most syntax errors and common Go idioms. However, it may not catch package-level errors or issues with external dependencies. It's excellent for quick syntax checking and formatting.

Input Go Code

📌 About Go Formatting

Results