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JFmt

Free browser-local JSON formatter, validator & converter

Free

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JFmt website

About

JFmt is a free online JSON formatter, validator and viewer that runs entirely in your browser — no upload, no sign-up. Format, validate, repair, query (JSONPath), diff, and convert JSON.

Features

  • Format/validate/repair JSON
  • JSONPath & diff
  • Convert JSON↔CSV/XML/YAML

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