JSON Viewer Editor Formatter

Open a JSON file, read it clearly, and repair it when it is broken. No sign-in. No upload. The file stays on your phone, and everything works offline. OPEN ANY JSON • Tap a .json file anywhere on your device and it opens here • Paste from the clipboard — JSON is detected for you • Load straight from a URL, or open a .har network capture • Minified and multi-megabyte files open without a blank screen READ IT CLEARLY • Tree view — expand and collapse, so a large file makes sense at a glance • Formatted view with colour-coded syntax and line numbers • Table and grid views for arrays of records • Search across keys, values and text • Breadcrumbs show exactly where you are in a deep structure • Adjustable font size, dark and light themes REPAIR BROKEN JSON • Fixes trailing commas, single quotes, unquoted keys and missing brackets • Lists exactly which repairs were made, so nothing changes silently • Validation points at the line and column that failed FORMAT AND EDIT • Prettify or minify in one tap • Edit in place with validation as you type • Add, rename, duplicate and delete nodes • Sort keys alphabetically • Jump to any line CONVERT AND EXPORT • Excel, CSV, PDF, XML, YAML and Markdown • Copy as CSV, XML, key-value pairs or Base64 • Save to your device or share anywhere ALSO INSIDE • JSONPath queries • Compare two JSON documents side by side • Templates to start from • Favourites and recent files • A built-in API client for quick requests WHO IT IS FOR Developers checking an API response on the move. QA engineers reading a payload from a bug report. Anyone handed a .json file with no idea what is inside it. PRIVACY Files are processed entirely on your device. Nothing is uploaded, and no account is required.