Four Popular Go Web Frameworks: Gin, Beego, Echo, and Iris – Overview and Code Samples

Gin

Gin is a lightweight, high‑performance web framework for Go that offers fast routing and extensive middleware support. The following example creates a minimal Gin application that defines a root route returning a JSON response.

package main

import "github.com/gin-gonic/gin"

func main() {
    r := gin.Default()
    r.GET("/", func(c *gin.Context) {
        c.JSON(200, gin.H{"message": "Hello, World!"})
    })
    r.Run(":8080")
}

The example demonstrates basic routing, JSON data binding, and server startup.

Beego

Beego is a high‑performance MVC web framework that includes an ORM and many built‑in features. The code below defines a controller that returns JSON data and registers it with Beego's router.

package main

import (
    "github.com/astaxie/beego"
)

type MainController struct {
    beego.Controller
}

func (c *MainController) Get() {
    c.Data["json"] = map[string]string{"message": "Hello, Beego!"}
    c.ServeJSON()
}

func main() {
    beego.Router("/", &MainController{})
    beego.Run()
}

This snippet shows controller definition, JSON response handling, and routing registration.

Echo

Echo is a minimalist framework designed for building RESTful APIs. The following program creates an Echo instance, defines a GET route, and returns a plain‑text response.

package main

import (
    "net/http"
    "github.com/labstack/echo"
)

func main() {
    e := echo.New()
    e.GET("/", func(c echo.Context) error {
        return c.String(http.StatusOK, "Hello, Echo!")
    })
    e.Start(":8080")
}

The example highlights route registration and simple string response handling.

Iris

Iris is a high‑performance web framework that provides a rich set of utilities. The code sample creates an Iris application, registers a root route, and returns a JSON payload.

package main

import (
    "github.com/kataras/iris"
)

func main() {
    app := iris.New()
    app.Get("/", func(ctx iris.Context) {
        ctx.JSON(iris.Map{"message": "Hello, Iris!"})
    })
    app.Run(iris.Addr(":8080"))
}

This snippet illustrates route definition, JSON rendering, and server launch.

All four frameworks share common capabilities such as routing, request handling, and response generation, but they differ in design philosophy, middleware architecture, and additional features like MVC support (Beego) or ultra‑lightweight routing (Echo). By reviewing the code examples and feature summaries, developers can choose the framework that best matches their project requirements.