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SparkJSONPrettify JSON Online
Prettify JSON Online
Prettify minified JSON in one click with validation included.
Free SparkJSON tool — runs 100% in your browser. No signup, no upload, no paywall. This page opens in format / beautify mode.
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Pretty-print without the noise
Same intent as beautify — SparkJSON Format covers both.
- Indent control — 2 spaces, 4 spaces, or tabs.
Frequently asked questions
Prettify vs beautify?
Same intent. Use Format on SparkJSON for both.