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Format, minify, and validate JSON instantly in your browser — no server needed.
A lightweight, pure-frontend JSON utility. Paste any JSON to pretty-print it with configurable indentation, minify it to a single line, or validate its syntax. Results can be copied to your clipboard with one click.
Visual gradient editor — pick colors, adjust stops, choose direction, and copy the CSS with one click.
Encode and decode URLs and individual components — supports full URL, component, and query-param modes.
Generate beautiful color schemes from any base color — complementary, analogous, triadic, and more.
JSON Formatter & Validator is a free online tool available on BuildHub. Format, minify, and validate JSON instantly in your browser — no server needed.
This tool is designed for developers, engineers, and technical professionals who want to speed up their daily coding tasks. It runs entirely in your browser — no downloads, no sign-ups, and no data sent to external servers.
Whether you're working on a quick personal project or a professional deliverable, JSON Formatter & Validator helps you get results faster with zero friction.
Yes, 100% free with no hidden costs. You don't need to create an account or provide payment information. Just open the tool and start using it.
Absolutely. JSON Formatter & Validator processes everything directly in your browser. Your input data is never uploaded to our servers or stored anywhere.
Yes. The tool is fully responsive and works on smartphones, tablets, and desktop browsers. No app installation required.