JSON Formatter & Validator
Formata, minifica e valida JSON na hora
Como funciona
- 1Cola seu JSON
Solta qualquer JSON no input - até um bem messy ou minificado funciona.
- 2Escolha format ou minify
Pretty-print com 2 ou 4 espaços, ou colapsa pra uma linha só pra embutir.
- 3Copia ou baixa
Copia o JSON formatado pra área de transferência ou baixa como .json.
Sobre JSON Formatter & Validator
JSON formatter, beautifier e validator grátis online. Cola qualquer JSON e recebe na hora um output pretty-printed com indent de 2 ou 4 espaços, minifica pra uma linha só ou pega erros de sintaxe. Roda inteiro no seu browser - seus dados nunca saem do seu dispositivo. JSON Formatter & Validator no 712 Tools roda inteiro dentro do seu browser via APIs nativas de JavaScript - nenhum server vê seus dados. Isso significa resultado na hora, privacidade total e nenhum limite de upload.
Seja pra uma sessão de debug, uma checagem rápida ou um incidente em produção, essa ferramenta é grátis e sem limite de uso. Sem watermarks, sem sign-up e sem ads dentro da ferramenta.
Perguntas frequentes
Meu JSON é enviado pra algum server?
Não. Todo o parsing e a formatação acontecem no seu browser com o JSON parser nativo. Zero requests pro backend.
O que o validator pega?
Vírgulas faltando, keys sem aspas, trailing commas, brackets desbalanceados e qualquer JSON inválido pelo RFC 8259.
Aguenta arquivos grandes?
Sim, até o limite de memória do browser. Files acima de ~50 MB podem deixar o pretty-print lento, mas a validação continua rápida.
Suporta JSON5 ou JSONC?
Ainda não. Só JSON estrito (sem comments, sem trailing commas, keys entre aspas duplas).
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