LOCAL TOOL / JSON-DATA

JSON Pretty Print

Paste JSON or drop a .json file. Syntax errors include the parser location when available.

Paste, type, or drag & drop a text file 44 chars · 1 lines · 44 B
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Runs locally in this browserPreview updates after 320 ms · No content, filenames, or secrets are sent or saved.
About this utility

How to use JSON Pretty Print

Format JSON with readable indentation and an optional stable key order.

What to provide

Paste JSON or drop a .json file. Syntax errors include the parser location when available.

  1. Paste, type, or drag and drop a supported text file into the input area.
  2. Choose the options that match your intended result.
  3. Select “Run tool” or press Ctrl/Command + Enter, then copy, download, or move the result back into the first input for another pass.

What the result means

Valid JSON formatted with the selected indentation.

Privacy and safety

This utility is loaded as browser code and processes your input only in this tab. OmniCastConverter has no upload endpoint and never stores your content, filenames, tokens, or secrets. Generated markup and code are shown as inert text and are never executed.

Limitations

  • JSON comments, trailing commas, NaN, and Infinity are rejected.

Try the included example

Select “Load example” at any time to restore this tested sample.

{"active":true,"user":{"name":"Ada","id":7}}