JiffyKit
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JSON formatter

Pretty-print or minify JSON and see exactly where it breaks.

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Pretty-print or minify JSON and find out exactly where invalid JSON breaks, with the line number and the cursor placed at the problem. Data stays in your browser, which matters when the JSON contains keys or customer records.

How it works

  1. Paste the JSON.
  2. Click Format or Minify.
  3. Copy the result.

Questions about json formatter

Does it fix invalid JSON?
No. It tells you where the problem is so you can fix it.