Decoy – A native Mac app for mocking HTTP endpoints locally

Name: Decoy – A native Mac app for mocking HTTP endpoints locally
Availability: InStock
Author: mosselman

by mosselman·Feb 26, 2026·7 points·4 comments

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AI Analysis

●●SolidSlickSolve My ProblemCozy

Native SwiftUI mock server beats Docker setup, but RequestBin, Mockoon, and Prism already own this.

Strengths

•True native macOS app with instant startup, zero external dependencies, SwiftUI polish.
•Thoughtful UX details: parameterized paths, snapshots, auto-CORS, file responses, syntax highlighting.
•Request persistence to SQLite and instant live reload without restart.

Weaknesses

•Crowded category: Mockoon (free, open-source, cross-platform), Prism (richer OpenAPI support), RequestBin (hosted alternative) all do this.
•macOS-only limits appeal compared to cross-platform competitors; €24.99 price friction when free tools exist.

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