JSON Brace: Viewer & Formatter
Sergei Rebrov Developer Tools iPhoneiPadiPod touchMac
JSON Brace: Viewer & Formatter is a free Developer Tools app for iPhone and iPad by Sergei Rebrov. Requires iOS 16.6. Updated September 8, 2026.
- Price
- Free
- on the App Store
- Size
- 2 MB
- Age 4+
- Updated
- Sep 8
- 2026 · v3.1.0
Screenshots
About JSON Brace: Viewer & Formatter
JSON Brace turns raw JSON into a clean, readable tree – in a native app on your iPhone, iPad, and Mac, and right inside Safari. APIs, logs, configs, exports – JSON is everywhere, but reading it raw is painful. JSON Brace formats it instantly into a collapsible tree you can explore, search, and copy from. THE APP • Open any JSON and explore it as an interactive tree • Collapse and expand nodes to focus on what matters • Fast search with match highlighting • Copy values or the whole document in one tap • RAW mode when you need the original text • Quick Look on the Mac: press Space on a JSON file in Finder for an instant preview in your theme THE SAFARI EXTENSION • Automatically detects and formats JSON on web pages • Perfect for checking API responses right in the browser • Same viewer, same themes, same shortcuts – no extra setup MADE TO LOOK GOOD • 19 carefully tuned themes: Solarized, Dracula, Nord, GitHub, Monokai, One Dark, Tokyo Night, Gruvbox, Catppuccin, Rosé Pine, and more • Light, dark, and system appearance • The whole app follows your theme, not just the tree BUILT FOR EVERYONE • Full VoiceOver support • Complete keyboard navigation • Adjustable text size and Dynamic Type • High Contrast theme and type markers that don't rely on color alone FREE AND PRO The core viewer is free: formatting, tree navigation, search, and copying. JSON Brace Pro unlocks the full theme collection, inline previews, expansion depth control, saving to a file, and copying any subtree, key, or path. Pro is a one-time purchase – no subscription – and supports Family Sharing. PRIVATE BY DESIGN Everything happens on your device. No servers, no accounts, no tracking, no analytics. Your data never leaves your iPhone, iPad, or Mac. Download JSON Brace and never squint at raw JSON again.
What’s new
Version 3.1.0 · Updated September 8, 2026
- New scroll bars: the vertical bar is always visible and never hidden behind the sticky ancestors panel, a horizontal one appears for wide documents. - Files open without a white flash. - Large files no longer freeze the app while opening. - Fixed the sticky panel after Collapse All, wrapping of deep lines when narrowing the window.
App privacy
The developer, Sergei Rebrov, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to JSON Brace: Viewer & Formatter
Looking for apps like JSON Brace: Viewer & Formatter? Here are 6 similar apps on the App Store. The highest rated is JSONSpruce (5.0/5), and all 6 are free to download.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| JSON Brace: Viewer & Formatter | – | Free | September 8, 2026 | |
| JSONSpruce | 5.0 / 5 (1) | Free | Jun 23, 2025 | Compare |
| Curly: JSON Viewer & Formatter | 5.0 / 5 (1) | Free | Jan 21, 2026 | Compare |
| JSON Prettify | 5.0 / 5 (2) | Free | Nov 26, 2024 | Compare |
| JSON Utilities | – | Free | Dec 1, 2024 | Compare |
| Smart JSON & XML Editor | 5.0 / 5 (1) | Free | Oct 21, 2026 | Compare |
| JSON Tools - View Edit | 3.0 / 5 (2) | Free | Aug 11, 2026 | Compare |