Tidy JSON

Opens raw JSON in a fast, searchable, collapsible viewer. Works offline, collects nothing.

Raw JSON in a browser tab is hard to read. Tidy JSON turns it into something you can actually work with, the moment the page loads. Read it - Collapsible tree with colored strings, numbers, booleans and nulls - Item counts, line count and file size at a glance - Formatted view with line numbers, or the untouched raw text Find it - Search keys and values, with highlights, a result count and next/previous - Expand all, collapse all, or jump to a level - Copy any value with one click, or copy its path like `$.items[3].name` Fix it - If the JSON is broken, you get the exact line and column, a snippet with a caret, and the original text with the bad character marked Fast on big files - Only what you open is drawn. Long lists are grouped in hundreds, so multi-megabyte responses stay smooth Comfortable - Light and dark that follow your system, plus a toggle - Keyboard shortcuts (press ?), clear focus outlines, respects reduced motion Private by design - Works entirely on your device. No network requests, no analytics, no accounts - Only stores your theme choice, on this device (not synced to your account)