encoding/hex
Encodingimport "encoding/hex"Implements hexadecimal encoding and decoding.
Example
package main
import (
"encoding/hex"
"fmt"
)
func main() {
h := hex.EncodeToString([]byte("Hello"))
fmt.Println(h) // 48656c6c6f
}Key Types & Functions
EncodeToStringDecodeStringEncodeDecodeDumperAbout encoding/hex
The encoding/hex package (imported as encoding/hex) belongs to the Encoding category of Go packages. Implements hexadecimal encoding and decoding.
Go's standard library is one of the language's greatest strengths, providing production-ready implementations for networking, cryptography, encoding, I/O, and more. The encoding/hex package follows Go's philosophy of simplicity and composability — small, focused packages that combine through interfaces like io.Reader and io.Writer.
When using encoding/hex in production, follow Go best practices: handle errors explicitly, use context for cancellation and timeouts, prefer composition over inheritance, and write table-driven tests. The Go documentation at pkg.go.dev provides comprehensive API references and examples for every exported type and function.