JSON Formatter
Format, validate and minify JSON — pretty-print it or collapse it to one line.
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.
Je, mnapakia faili zangu kwenye seva?+
Hapana — kila zana hapa inachakata faili zako kikamilifu kwenye kifaa chako, na hakuna kinachopakiwa kwenye seva. Tofauti pekee ni zana za AI, ambazo hutuma maandishi yaliyotolewa (si faili) kwa Claude ili kufanya kazi yake.
Je, kuna kikomo cha ukubwa wa faili?+
Hatuweki kikomo cha bandia, lakini kwa kuwa uchakataji hufanyika kwenye kivinjari chako, faili kubwa sana (zaidi ya 500MB au kurasa 1,000+) hupunguzwa na kumbukumbu ya kifaa chako, si sisi.
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