RESTK for macOS
A native API client built with SwiftUI. Designed for the Mac, with the performance and polish you expect from a first-class macOS application.
Requires macOS 15.6 (Sequoia) or later. Built for Apple Silicon (M1 or later).
Built with SwiftUI, Not Electron
RESTK is a true native Mac app. It uses SwiftUI for the interface and Swift for the networking layer, delivering performance that web-wrapped tools cannot match.

Instant Startup
RESTK launches fast. No loading spinners, no waiting for a browser engine to boot.
Low Memory Footprint
Uses a fraction of the memory compared to Electron-based tools. Your Mac stays fast even with large collections.
Native Look & Feel
Built with SwiftUI, RESTK follows Apple Human Interface Guidelines. It feels like it belongs on your Mac.
Retina & Dynamic Type
Pixel-perfect rendering on Retina displays with full Dynamic Type support for accessibility.
Made for the Mac
Deep macOS integration that takes full advantage of the platform.
Keychain Integration
API keys, tokens, and passwords are stored securely in the macOS Keychain, protected by your system credentials and Touch ID.
Touch ID Support
Lock sensitive collections or environments behind Touch ID. Unlock them with a fingerprint when you need them.
Full Keyboard Navigation
Navigate collections, switch environments, and send requests entirely from the keyboard. Supports macOS system shortcuts.
Offline-First Storage
All data is stored locally on your Mac. Works on airplanes, in coffee shops, and anywhere without Wi-Fi.
App Sandbox & Notarization
RESTK is sandboxed and notarized by Apple. It follows macOS security best practices to keep your system safe.
Dark Mode & Accent Colors
Automatically adapts to your system appearance and accent color. Light mode, dark mode, and everything in between.
System Requirements
Ready to try RESTK on your Mac?
Download for free and start testing APIs with a truly native experience.