JSON View : Editor & Formatter

Garoono

About this app

JSON View is a fast, clean JSON viewer and editor for Android. Open, view, edit, format, and validate JSON files — all offline, no account required, no ads.

Whether you're a developer debugging an API response, a data analyst inspecting config files, a student learning JSON syntax, or someone who just received a .json file and needs to read it — JSON View handles it in seconds.


TREE VIEW — EXPLORE JSON VISUALLY

Navigate complex, deeply nested JSON with a collapsible tree view. Each node shows the key name, value type, and child count at a glance. Tap to expand or collapse any object or array. Color-coded types make it easy to spot strings, numbers, booleans, and null values without reading every line.

Auto-expands the first two levels when you open a file — so you see structure immediately, not a wall of collapsed nodes.


TEXT VIEW — READ & EDIT WITH SYNTAX HIGHLIGHTING

Switch to a full syntax-highlighted text view with line numbers. Every key, string, number, boolean, and bracket is color-coded for quick scanning. Edit your JSON directly in the text editor — fix typos, update values, restructure data.

Unlike other JSON editors on Android, JSON View gives you both a tree view AND a real text editing mode with syntax highlighting. Most competitors only offer one or the other.


FORMAT & BEAUTIFY

Beautify messy, minified JSON into a clean, readable structure with one tap. Choose your indentation — 2 spaces, 4 spaces, or tabs. Minify bloated JSON into compact single-line output for APIs or configs. Sort keys alphabetically to organize your data.


VALIDATE BEFORE YOU SAVE

Real-time JSON validation catches syntax errors before you save. See exactly which line and column has the problem — no more guessing. JSON View validates your file every time you save, so you never accidentally corrupt a file (a common complaint with other JSON apps).

Auto-fix common mistakes like trailing commas, missing quotes, and extra brackets.


OPEN JSON FROM ANYWHERE

Pick a .json file from your device storage using the built-in file browser. Paste JSON directly from your clipboard — no file needed. Load JSON from any URL (paste an API endpoint and see the response). Receive JSON shared from other apps. Start from scratch with a blank file or use starter templates (API Mock, package.json, Config Map).

JSON View registers as a default .json file handler — tap any JSON file on your device and choose "Open with JSON View."


SAVE, SHARE & EXPORT

Save changes back to the original file — not just a copy to Downloads. Save as a new .json file anywhere on your device. Export to XML or PDF for sharing with non-technical colleagues. Share formatted JSON as text to any messaging or note-taking app. Copy the entire file to your clipboard with one tap.


CONVERT BETWEEN FORMATS

Convert JSON to XML and XML to JSON with a single tap. Useful when you need to switch between data formats for different systems, APIs, or team members.

Transform key casing — convert between camelCase, snake_case, and PascalCase across all keys in your file.


DESIGNED FOR REAL USE

Material 3 interface — modern, clean, and fast. Dark mode and light mode with system-aware auto-switching. Works completely offline — no internet connection needed. No account, no sign-up, no login. No data collection — your JSON files never leave your device. Opens 100KB+ files in under a second. Handles deeply nested structures without slowing down.


COMING SOON

AI-powered JSON explanation — paste any JSON and get a plain English summary of its structure and data. AI auto-fix for broken JSON. JSONPath query engine — search JSON with expressions like "$.users[?(@.age>30)]". JSON Schema validation — validate data against a schema document. Multi-tab editor for comparing files side by side.


Built by Garoono — indie developers who ship useful tools for real people.

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Website: garoono.in