FuryJSON
JSON Viewer & Editor with tree and text views, syntax highlighting, and offline-first privacy.
Key features
- Tree view: browse JSON as a collapsible, editable node tree — expand/collapse, inspect and edit values inline.
- Text view: raw JSON editor with syntax highlighting, undo/redo, and quick pretty-print (Format JSON).
- Two-way sync: edits in tree or text mode stay in sync so you can work the way you prefer.
- Find & filter: browser-style Find-in-Page (match count, prev/next) and realtime tree filtering.
- Open large files: optimized to handle large JSON documents from local storage.
- Share & export: share formatted JSON via Android share sheet. CSV export available as a Premium feature.
- Expression evaluator (Premium): run JSONata-style expressions (powered by the bundled Knata engine) to query and transform documents.
- Adaptive UI: two-pane layout for tablets and landscape, edge-to-edge layout, and full dark/light theme support.
- Offline & private: files are read from your device and are not uploaded unless you explicitly share or export them.
