JSON Compare
Paste two JSON documents into the panes and compare a deterministic, sorted representation side by side. Everything runs locally in a native SwiftUI app, so private payloads never leave your Mac.
Install with Homebrew · View source on GitHub
Side-by-side diff
Added and removed lines stay aligned in two readable panes.
Order-insensitive
Object keys are sorted before comparison so key order does not create noise.
Format & validate
JSON is parsed and pretty-printed, with clear errors for invalid input.
Keyboard friendly
Compare, edit, clear, and navigate with native controls and shortcuts.
Native performance
Built in SwiftUI. Opens instantly, idles cheaply.
No cloud
Your payloads never leave the app. No telemetry.