JSON Formatter

Format, validate and minify JSON — pretty-print it or collapse it to one line.

Indent

Parsed and formatted in your browser — nothing is uploaded.

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JSON Formatter — frequently asked questions

Is my JSON sent to a server?+

No. It's parsed and formatted entirely in your browser with JSON.parse.

It says invalid JSON — why?+

The message shows where parsing failed. Common causes: trailing commas, single quotes, or unquoted keys — none of which are valid JSON.

Can it handle large files?+

Yes, within your browser's memory. Very large files may be slow to render.

Apakah file saya diunggah ke server?+

Tidak — setiap alat di sini memproses file Anda sepenuhnya di perangkat Anda, dan tidak ada yang diunggah ke server. Satu-satunya pengecualian adalah alat AI, yang mengirim teks yang diekstrak (bukan file) ke Claude untuk melakukan tugasnya.

Apakah ada batas ukuran file?+

Kami tidak menerapkan batas buatan, tetapi karena pemrosesan terjadi di browser Anda, file yang sangat besar (500+ MB atau 1.000+ halaman) dibatasi oleh memori perangkat Anda, bukan oleh kami.