Offline engine (processed locally)JSON v1.0.0 Spec

JSON Format

v1.0.0

Format, beautify, and indent your minified or messy JSON with a single click. This free online JSON formatter makes your data readable, validates syntax, and highlights errors. Perfect for debugging APIs, configuration files, and log entries. Works entirely in your browser—no registration required.

Live sync—ms

JSONInput (JSON)Invalid

lines: 1chars: 28Size: 28 BUTF-8

JSONOutput (JSON)

Auto-generated

Converted output will appear here

lines: 0chars: 0Size: 0 BUTF-8

Size change: -100.00%TOML compliant: v1.0.0

Tool guide

Accurate conversion

Input is processed by this tool’s dedicated converter.

Local processing

Your input is processed in your browser and is not uploaded.

Ready-to-use output

Copy the result or save it as a file.