fiber/docs/guide/faster-fiber.md

id	title	sidebar_position
faster-fiber	⚡ Make Fiber Faster	7

Custom JSON Encoder/Decoder

Since Fiber v2.32.0, we have adopted encoding/json as the default JSON library for its stability and reliability. However, the standard library can be slower than some third-party alternatives. If you find the performance of encoding/json unsatisfactory, we suggest considering these libraries:

• goccy/go-json
• bytedance/sonic
• segmentio/encoding
• minio/simdjson-go

package main

import "github.com/gofiber/fiber/v3"
import "github.com/goccy/go-json"

func main() {
    app := fiber.New(fiber.Config{
        JSONEncoder: json.Marshal,
        JSONDecoder: json.Unmarshal,
    })

    # ...
}

References

• Set custom JSON encoder for client
• Set custom JSON decoder for client
• Set custom JSON encoder for application
• Set custom JSON decoder for application