Turn a one-line response into something you can inspect
Useful when you need to confirm fields, nested objects, arrays, and unexpected values quickly.
Readable structure is usually the fastest way to spot field-level mistakes in API data.
Paste JSON to beautify, minify, validate, escape, or unescape it instantly. Everything runs locally in your browser.
Comienza a formatear JSON
Ingresa JSON a la izquierda o usa Importar para cargar desde un archivo.
A reliable formatter workflow is simple: paste the raw payload, choose whether you need readable or compact output, review parse errors if any, then copy, download, or continue into repair, table editing, or schema generation.
From one-line payload to readable structure
A lot of real payloads come from logs, APIs, and queues as a single unreadable line. The formatter turns that into something you can inspect in seconds.
Use pretty output for review and debugging. Switch to minified output only when you need compact transport or storage.
These are the common cases where formatting pays off immediately during real development work.
Useful when you need to confirm fields, nested objects, arrays, and unexpected values quickly.
Readable structure is usually the fastest way to spot field-level mistakes in API data.
Stable key order makes diffs cleaner and reduces noise when reviewing configuration changes.
Sorting is useful when your real goal is comparison rather than human-friendly business ordering.
Logs and message systems often store JSON inside strings. Unescape it first, then keep working on the actual structure.
If the payload is full of backslashes, unescaping is usually the first useful step.
Tutorial Step
Paso 1 – Pega o importa tu JSON en el formateador en línea
Start with the original payload. You do not need to clean up spacing or line breaks first.
Tutorial Step
Paso 2 – Elige las opciones de formateo
Readable JSON and compact JSON solve different problems. Pick the mode that matches what you need next.
Tutorial Step
Paso 3 – Revisa el resultado y cualquier error de validación
The output area is both a result view and a fast feedback loop. Valid JSON renders immediately; invalid JSON shows an actionable error.
Tutorial Step
Paso 4 – Copia o descarga para tu API, respuestas o registros
Once the JSON is clean, use it as the working copy for the next step instead of repeating the cleanup elsewhere.
A common formatter workflow
Paste the raw payload into the formatter and expand it into readable JSON first.
If the parser fails, jump to the error or move the payload into Repair.
Once the structure is valid, choose beautified, minified, escaped, or unescaped output based on the next task.
Apply the output back to input if the cleaned result should become your new working copy.
Continue into the table editor, compare tool, or schema generator when formatting is no longer the bottleneck.
Putting the formatter at the front of the workflow usually saves time later because every downstream tool receives cleaner JSON.
Consejos rápidos para principiantes
Verifica la sintaxis del JSON y localiza errores rápidamente antes de formatear o enviar datos a APIs.
Corrige automáticamente problemas comunes de JSON como comillas faltantes, comas finales y corchetes/llaves desbalanceados.
Convert clean JSON into a spreadsheet with nested-field flattening and live preview.
Compare two JSON payloads side by side and highlight additions, deletions, and edits.
Edita datos JSON visualmente en una interfaz tipo hoja de cálculo con actualizaciones en tiempo real.
Genera definiciones de JSON Schema a partir de tu JSON para validación y documentación.
El formateo de JSON mejora la legibilidad de tus datos al añadir indentación, saltos de línea y espaciado adecuados.
Sí. Puedes elegir 2 espacios, 4 espacios o una salida compacta (minificada).
No. El formateo solo cambia la presentación; la estructura y los valores se mantienen igual.
Sí. El formateador maneja JSON grandes de forma eficiente, aunque archivos muy grandes pueden tardar un momento en procesarse.
Formatting focuses on readability, while validation focuses on syntax correctness. This page does both in one flow.
No. Formatting, validation, escaping, and unescaping all run locally in your browser.