ZeroServer.tools

curl to Kotlin

Convert curl commands to Kotlin OkHttp code. Supports headers, POST data, auth, cookies, and common flags.

curl command

Kotlin (OkHttp)

import okhttp3.MediaType.Companion.toMediaType
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.RequestBody.Companion.toRequestBody

fun main() {
    val client = OkHttpClient()

    val mediaType = "application/json; charset=utf-8".toMediaType()
    val requestBody = "{\"name\":\"Alice\",\"email\":\"alice@example.com\"}".toRequestBody(mediaType)

    val request = Request.Builder()
        .url("https://api.example.com/users")
        .addHeader("Content-Type", "application/json")
        .addHeader("Authorization", "Bearer token123")
        .post(requestBody)
        .build()

    client.newCall(request).execute().use { response ->
        println(response.code)
        println(response.body?.string())
    }
}

How curl to Kotlin conversion works

OkHttp is the most popular HTTP client for Kotlin and Android. This converter maps curl flags to OkHttp builder calls:-H becomes.addHeader(),-d becomes.toRequestBody(), and-u becomes a Basic auth header.

Private & free — this tool runs entirely in your browser.