# JSON Tree — View & Format JSON Object

> Lightweight JSON tree viewer with export and lazy loading. (iPhone/iPad app by 金攀 虞.)

- Source: https://appshunter.io/ios/app/json-tree/id6702017445 (this page in markdown: same URL + `.md`)
- Developer: [金攀 虞](https://appshunter.io/developer/1674729630)
- Category: Developer Tools, Utilities
- Price: $2.99 (on sale, was $3.99)
- Age rating: 4+
- Requires: iOS 15.6 · 1 MB
- Languages: Russian, Bulgarian, Hindi, Slovenian, Vietnamese, Latin, American English, Arabic, Hungarian, Dutch and 26 more
- Released: 2024-09-24
- Data updated: 2026-08-23
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/json-tree/id6702017445/reviews.md

## What is JSON Tree?

A lightweight JSON tree structure previewer with no other dependencies.

- Supports exporting type declarations for languages ​​such as Java, TS, and Go
- Instantly collapse and expand tree nodes for precise data exploration
- Blazing fast performance: 100% native code, zero external libraries
- Effortless handling of large files via **Lazy Loading**
- Smart copying of full JSON objects, regardless of node collapse state
- Seamless system integration: Supports drag & drop, Shared files, and "Open with" from context menus
- Enhanced file access: Directly supports "file:///" location paths
- Clear data overview: Displays array length/count for quick assessment
- Full customization: Includes multiple dark/light theme options and custom font sizing

## Key features

- JSON tree structure preview
- Export type declarations (Java, TS, Go)
- Collapse and expand nodes
- Lazy loading for large files
- Smart copying of JSON objects
- Drag and drop support
- Customizable themes and font sizes

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/json-tree/id6702017445/reviews.md

### 1/5 — seems to crash with larger JSON responses

*2024-12-24*

Unfortunately it seems to crash for me with larger JSON payloads (which was what i was working with when i installed this), such as json data from the ABS' stats API

data[dot]api[dot]abs.gov[dot]au/rest/data/ABS,C21_T17_SA2,1.0.0/all?startPeriod=2021&dimensionAtObservation=AllDimensions&format=jsondata

I'm sure the safari widget is great when it works i just haven't had the opportunity to see that. Unfortunately i have to leave a rating to leave a rescue, i'll happily update my review the moment this issue is corrected.

**Developer response:** Thank you for your feedback. This problem has been fixed in the new version 1.0.5.

## Frequently asked questions about JSON Tree

### What is JSON Tree?

JSON Tree is a lightweight application designed for viewing and formatting JSON data. It allows users to preview JSON structures, export type declarations, and efficiently handle large files.

### What platforms does JSON Tree support?

JSON Tree is available for macOS, iPhone, iPad, and iPod touch, offering broad compatibility for Apple users.

### How does JSON Tree handle large JSON files?

JSON Tree utilizes a feature called 'Lazy Loading' to efficiently manage and display large JSON files without performance degradation.

### Can I export data types from JSON Tree?

Yes, JSON Tree supports exporting type declarations for popular programming languages such as Java, TypeScript, and Go, streamlining development workflows.

### Does JSON Tree have ads?

No, JSON Tree is an ad-free application, providing an uninterrupted user experience.

### What is the price of JSON Tree?

JSON Tree is a paid application, available for a one-time purchase of $2.99.

### How often is JSON Tree updated?

The latest version of JSON Tree is 1.2.4, last updated on March 19, 2026. While this indicates a recent update, future update frequency is not specified.

### What is the age rating for JSON Tree?

JSON Tree has an age rating of 4+, making it suitable for a wide range of users.

## Version history (last 5 releases)

### 1.2.4 — 2026-03-19

Features

- Added compatibility handling for sandbox CSP mode
- The "Copy Language Type" button is now optional

### 1.2.3 — 2026-02-02

Features

- Supports 37 languages

### 1.2.2 — 2026-01-22

Bug Fixes

- Fixed the issue of garbled characters when displaying special fonts
- The option label colors are incorrect

### 1.2.1 — 2026-01-13

Thank you to user "f" for the very helpful suggestion.

Bug Fixes

- The button theme is incorrect in light/dark mode

Features

- Supports hold down ⌥ or ⌘ to expand all child nodes

### 1.2.0 — 2026-01-12

Bug Fixes

- Copy type error at root node
- The copy button is not displayed correctly when hovering
- The default theme background color is incorrect

Features

- Supports exporting type declarations for languages ​​such as Java, TS, and Go
- Add value/type copy functionality to each object node

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All apps by 金攀 虞: https://appshunter.io/developer/1674729630

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*