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OOmniToolbox

Tool workspace

Prettify JSON Formatter

Format, minify, validate, sort keys, copy, and download JSON in a clean browser-based editor.

Account required

Sign in to use Prettify JSON Formatter.

OmniToolbox is free to use right now, but processing tools require an account so usage stays protected and abuse-resistant.

Validate and format JSON

Prettify JSON parses input, reports syntax errors, and formats valid JSON with readable indentation or minified output for API payloads and config files.

Sort keys and export

Optional recursive key sorting makes JSON easier to compare, while copy and download actions help move the formatted output into code, docs, or debugging tools.