JSON Formatter & Validator
Pretty-print, validate, and minify JSON instantly in your browser. Use this free online JSON formatter and validator to fix syntax errors and format payloads.
Raw JSON
Presets:
Initializing editor...
Initializing editor...
Status: Valid JSON
0 chars
Frequently Asked Questions
How do I validate JSON?
Paste your JSON into the editor. The validator analyzes structure in real time, flags syntax errors with exact line locations, and highlights formatting issues.
What's the difference between formatted and minified JSON?
Formatted JSON uses indentation and newlines for human readability. Minified JSON strips all whitespace to minimize payload size for network transfers and production APIs.