JSON Formatter Online

✓ Formateador, validador y minificador JSON gratis en línea

Instantly format, validate, and minify JSON — 100% in your browser, no data sent to servers.

✨ Instant Formatting — Paste raw or minified JSON and see it beautifully indented in real time — no button clicks needed.
🔍 Syntax Validation — Errors are caught immediately with clear messages pointing to the exact line and position of the problem.
🗜️ One-Click Minify — Strip whitespace and compress JSON to the smallest possible size for API payloads or storage.
🔒 Privacy First — Everything runs locally in your browser using the native JSON engine. Your data is never uploaded anywhere.

Guía completa, cómo usarlo y preguntas frecuentes →

⚠️ Se requiere JavaScript Esta herramienta funciona por completo en tu navegador y necesita JavaScript. Activa JavaScript o abre esta página en un navegador moderno compatible para usar todas las funciones.

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