JSON Formatter

Paste messy JSON and get readable, indented output, or minify it to a single line for request bodies and configuration files. Errors are located by line and column.

Processed locally, never uploadedNo sign-upFree

Key features

  • Format, minify and validate with custom indentation
  • Line and column hints plus the offending line
  • Text stays in your browser and is never uploaded

How to use

  • Open the page and start; no account required.
  • Enter text or choose a file, then press Ctrl / ⌘ + Enter to run.
  • Copy or download the result; everything runs locally in your browser.

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