json

README

TinyJSON

A lightweight JSON wrapper for Go that optimizes WebAssembly binary size. It automatically switches between the standard encoding/json for backends and the browser's native JSON API (via syscall/js) for WASM builds.

Usage

package main

import (
    "github.com/tinywasm/json"
)

func main() {
    tj := tinyjson.New()

    // Encode data to JSON
    data := map[string]string{"message": "Hello, World!"}
    jsonBytes, err := tj.Encode(data)
    if err != nil {
        panic(err)
    }
    println(string(jsonBytes)) // {"message":"Hello, World!"}

    // Decode JSON back to data
    var result map[string]string
    err = tj.Decode(jsonBytes, &result)
    if err != nil {
        panic(err)
    }
    println(result) // map[message:Hello, World!]
}

Benchmarks

Binary size comparison using TinyGo and Gzip compression:

Implementation	Binary Size (WASM + Gzip)
TinyJSON	27.2 KB
encoding/json (stdlib)	119 KB

For build instructions and detailed benchmarking information, see benchmarks/README.md.

Screenshots

TinyJSON (27.2 KB):

Standard Library JSON (119 KB):

---

Contributing

License

See LICENSE for details.

Documentation

Index

• type TinyJSON
  • func New() *TinyJSON
  • func (t *TinyJSON) Decode(data []byte, v any) error
  • func (t *TinyJSON) Encode(data any) ([]byte, error)

Types

type TinyJSON

type TinyJSON struct {
	// contains filtered or unexported fields
}

func New

func New() *TinyJSON

func (*TinyJSON) Decode

func (t *TinyJSON) Decode(data []byte, v any) error

func (*TinyJSON) Encode

func (t *TinyJSON) Encode(data any) ([]byte, error)