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Swift code runner
SwiftMate lets you run compact Swift programs from iPhone or iPad. Write or import a snippet, tap Run, and read stdout, stderr, exit status, duration, and compiler diagnostics in the console. The code executes through SwiftMate's configured HTTPS runner rather than directly on the device.
The run button is the value moment in SwiftMate. It turns the current editor contents into a real compiler request and returns the result to a console attached to the file you are editing.
Use the runner for algorithms, Codable examples, collection transformations, Foundation experiments, interview questions, and other compact programs that do not need a full app project or Apple UI runtime.
SwiftMate stores files locally during editing, but iPhone and iPad do not provide the same unrestricted compile-and-run environment as a Mac development toolchain. SwiftMate therefore sends Run and AST requests over HTTPS to its configured Swift backend.
An internet connection and backend availability are required. Available Swift versions, frameworks, package access, time limits, output limits, and quotas can differ from Xcode and can change with current runner capabilities.
Treat the runner like any hosted developer tool: keep secrets, private keys, credentials, and confidential production code out of submitted snippets.
A failed run is still useful when the diagnostic explains a missing type, malformed expression, unavailable API, or syntax error. Fix one issue, run again, and compare the new output instead of guessing from the editor alone.
For deeper syntax questions, AST inspection can show how the compiler parses the code. That is different from running a complete iOS app and does not provide a SwiftUI preview or Simulator.
SwiftMate is a Swift code editor and hosted runner for iPhone and iPad. Use it to write short Swift programs, organize files, run snippets, read console output and compiler diagnostics, and inspect code structure without opening a Mac for every small experiment. Learn more about SwiftMate.
Yes. Write or import a Swift snippet, tap Run, and SwiftMate sends the code over HTTPS to its configured Swift runner. The result returns to the in-app console with output, exit status, duration, and diagnostics when available. Learn more about running Swift code.
Files stay local while you edit and organize them. When you choose Run or AST, the source and optional input must be sent to the runner backend for compilation or inspection. Source code and console contents are excluded from product analytics and crash-report parameters. Learn more in the SwiftMate FAQ.
No. SwiftMate is built for snippets, exercises, algorithms, and fast experiments. It does not build or sign complete iOS apps, run an iOS Simulator, show live SwiftUI previews, archive projects, or submit apps to App Store Connect. Compare SwiftMate and Swift Playgrounds.
Yes. SwiftMate supports iPad with a wider editor layout, file navigation, completion suggestions, console output, and the same core snippet workflow available on iPhone. Learn more about SwiftMate on iPad.
Premium can unlock broader run access, image-to-code import, custom snippets, pro editor fonts, additional Swift versions, and AST inspection. Exact products, prices, quotas, and availability can vary, so check the current App Store offer before purchasing. Learn more in the SwiftMate FAQ.