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JSON Assistant

JSON Assistant is a fast, privacy-first JSON viewer and formatter for iOS and macOS

Developer Tools App Store
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Developer Toolscategory
Jun 2026updated

About JSON Assistant

JSON Assistant is a fast, privacy-first JSON viewer and formatter for iOS and macOS.
Paste JSON, drop a file, or open from Share Sheet—then pretty-print, explore the tree, and save your snippets.
The UI uses a warm, high-contrast sepia theme that’s easy on the eyes without sacrificing legibility.

Great for
• Webhooks & API payloads.
• Server logs and debug output
• Inspecting large objects from the clipboard or files

Details
• Pretty-print and compact toggles
• Date/time stamps on saved entries
• Keyboard shortcuts
• Works offline; no account required

Privacy
All parsing happens on device. We do not collect your data.

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Get JSON Assistant

JSON Assistant is a fast, privacy-first JSON viewer and formatter for iOS and macOS

Download on the App Store