ZeroServer.tools

curl to Swift

Convert curl commands to Swift URLSession and URLRequest code. Supports GET, POST, PUT, DELETE with headers, request body, and authentication.

curl command

Swift (URLSession)

import Foundation

let url = URL(string: "https://api.example.com/users")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue("Bearer token123", forHTTPHeaderField: "Authorization")
request.httpBody = Data("{\"name\":\"Alice\",\"email\":\"alice@example.com\"}".utf8)

let task = URLSession.shared.dataTask(with: request) { data, response, error in
    if let error = error {
        print("Error: \(error)")
        return
    }
    if let data = data {
        print(String(data: data, encoding: .utf8) ?? "")
    }
}
task.resume()

About curl to Swift conversion

Swift's URLSession is the native HTTP client for iOS and macOS apps. This converter maps curl flags to Swift code:-H becomessetValue(_:forHTTPHeaderField:), and -d becomeshttpBody. The output uses URLSession.shared.dataTask with a completion handler — the standard pattern for Swift networking.

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