How is this different from json-formatter or json-minifier?

This tool combines formatting, validation, an interactive tree view, JSONPath extraction, and schema inference in one place.

What does 'compact arrays' do?

Short arrays (≤ 4 primitive elements, fitting on one line under 60 chars) are kept on a single line instead of being expanded vertically.

How do I get a JSONPath for a field?

Click any key in the tree view and its JSONPath (e.g. $.users[0].name) is copied to the clipboard and shown in the path bar.

What is schema inference?

The tool scans every field in your JSON and reports its data type. For arrays it also reports the types of elements, helping you understand data shape at a glance.

Is my data sent to a server?

No. All processing happens in your browser. Your JSON never leaves your device.

Developer 無料サインアップ不要

JSON Beautifier & Validator Pro

Format, validate, and explore JSON with syntax highlighting, JSONPath browser, tree collapse, and schema inference.

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このツールについて

A full-featured JSON workbench that goes well beyond basic formatting. Beautify with 2-space, 4-space, or tab indentation. Sort keys alphabetically, strip null values, and compact short arrays onto a single line. Syntax-highlighted output uses distinct colors for strings, numbers, booleans, and nulls. The interactive tree view lets you collapse and expand nested objects and arrays. Click any key to copy its JSONPath expression. Schema inference analyzes your JSON and reports the inferred type for every field — string, number, boolean, null, array, or object — with array element type summaries.

使い方

1 Paste or type your JSON into the editor on the left.
2 Choose indentation (2 spaces, 4 spaces, or tab) and toggle sort-keys, remove-nulls, compact-arrays.
3 Click Format to see the beautified output with syntax highlighting.
4 Switch to Tree View to browse, collapse, and expand nested nodes.
5 Click any key in the tree to copy its JSONPath.
6 Open the Schema tab to see inferred types for every field.

このツールについて

使い方

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