Online Swift Compiler
main
// Online Swift compiler to run Swift code in the browser.
// Write Swift code in this online editor and see instant output.
class Greeter {
func greet() {
print("Hello, Tutorsbot!")
}
}
let g = Greeter()
g.greet()
Swift is Apple's modern, safe, and fast programming language. Run Swift online — get hands-on with optionals, closures, structs, and iOS/macOS development concepts.
Free Online Swift Compiler — Swift in Your Browser
Run Swift online without installing Xcode or the Swift toolchain on macOS. This playground executes your code in a sandboxed cloud environment with the Foundation library available, so you can prototype an async/await function, test a property wrapper, or rehearse a Swift interview question — all from any device with a browser. The editor uses the same professional code editor used by millions of developers, so syntax highlighting matches your local experience.
Swift Playground for iOS and macOS Developers
Common use cases: prototype an async function using `Task` and `await`, test a SwiftUI-style data model property wrapper (`@Published`, `@State`, `@Binding`) before adding it to your iOS app, rehearse a Swift-specific interview question (value vs reference types, optionals, protocol-oriented programming) in front of a hiring panel, or share a runnable snippet with a teammate. The compiler reports both Swift compile errors with formatted notes and the runtime output. For a guided path beyond playground experimentation, see Tutorsbot's Swift Training and iOS Development Training programmes.
Modern Swift Features Supported
Swift with the full language: property wrappers, result builders (the foundation of SwiftUI's DSL), key-path expressions, opaque types (`some`), `@dynamicMemberLookup`, `@dynamicCallable`, and protocol-oriented programming. The standard library is fully available: `Swift.Collection`, `Swift.Sequence`, `Foundation`. iOS-only UI frameworks (UIKit, SwiftUI) are not available — this playground targets the cross-platform Swift toolchain.
Is the Online Swift Compiler Free?
Yes — 100% free for evaluation, learning, and interview preparation. No account, no captcha, no per-day limit. For production features (multi-file Swift Package Manager projects, persistent repls, scheduled jobs), see Tutorsbot's iOS Development Training or enterprise plans.
What the Swift Playground Runs
The compiler runs Swift with the standard library bundled. Optionals, generics, closures, tuples, pattern matching (including `if case` and `guard case`), enums with associated values, property wrappers (`@State`, `@Binding`, `@EnvironmentObject` syntax is parsed but not interpreted), and protocol-oriented programming all work. Result builders (the DSL feature behind SwiftUI) are syntactically accepted. What is NOT supported: SwiftUI, UIKit, AppKit, Foundation networking (URLSession runs but cannot reach the public internet from the sandbox), Combine, and Swift Package Manager dependencies. Multi-file projects are not supported; concatenate into a single file.
Why use the Swift online compiler?
- Swift — property wrappers, opaque types, result builders
- Standard library: collections, strings, numerics, Foundation
- Compile errors with line/column mapping in the Output panel
- Persistent workspace with autosave to localStorage
Frequently Asked Questions
- Is the Swift online compiler free?
- Yes — Tutorsbot's Swift compiler is completely free. No account required, no installation, and no usage limits.
- Do I need to install Swift?
- No. The Swift compiler runs entirely in your browser. No runtime, no SDK, no PATH configuration. Open the page and start coding.
- Is my Swift code saved between sessions?
- Yes — your code autosaves to your browser's local storage so you can resume where you left off. You can also generate a shareable URL.
- Can I share Swift code with others?
- Yes. Click the Share button to copy a URL that encodes your script. Anyone with the link can open and run it instantly — no account required on their end.
- Is the Swift compiler safe to use?
- Absolutely. Every program runs in an isolated sandbox. Your local system is never exposed to the executed code, and nothing is persisted after the execution window.