Live on App StoreStructly
JSON formatting that's actually beautiful — Safari extension for macOS and iOS.
Drop into any tab where the response is raw JSON; Structly renders it with proper syntax highlighting, collapsible nodes, and a search bar that actually finds keys.
What you get
Syntax-highlighted output
Type-aware coloring for strings, numbers, booleans, null, and keys. The default theme reads cleanly in both light and dark mode.
Search keys + values
Cmd-F or the on-page search bar finds any key or value in collapsed nodes too. Matched paths auto-expand.
Collapsible structure
Click any node to fold it. Cmd-click to collapse all siblings. Built for navigating responses with hundreds of nested objects.
Local-only
The extension runs in the page sandbox. Nothing about the JSON you view leaves your browser. No analytics, no telemetry.
macOS + iOS
Same code, same experience on every Apple device. iPhone Safari, iPad Safari, macOS Safari — Structly works the same everywhere.
Fast on huge files
Tested against multi-megabyte API responses. Renders incrementally so the page stays interactive even on 50k-line JSON.
Privacy by default
No analytics. No third-party SDKs. No tracking. Apple-ecosystem services only — App Store, iCloud, StoreKit, Apple Intelligence where applicable.