JSON Performance in Go

Use encoding/json for standard compatibility, json-iterator for a 2-3x speed boost with minimal setup, or sonic for maximum performance if you can accept its assembly-based implementation. For most high-throughput services, sonic offers the best latency, while json-iterator remains the safest drop-in replacement for encoding/json.

import "github.com/bytedance/sonic"

// Drop-in replacement for encoding/json
var data = []byte(`{"key": "value"}`)
var result map[string]interface{}
err := sonic.Unmarshal(data, &result)

These are three different tools for converting Go data into JSON text and back. The standard encoding/json is safe but slow, like a reliable but slow postal service. json-iterator is a faster version that works almost exactly the same way. sonic is the fastest option, using advanced computer tricks to process data at near-light speed, but it requires a slightly more modern setup.