Developer

JSON Formatter

Format, validate and view JSON as a readable tree.

Paste JSON to check and format it.

How to use
  1. 1Paste your JSON into the box.
  2. 2See instantly if it's valid, and where the error is if it's not.
  3. 3Format or minify it, explore it as a tree, then copy or download.
FAQ
Is my data sent to a server?
No. Everything happens in your browser, so it's safe to use with private data.
What does minify do?
It removes all spaces and line breaks, making the JSON as small as possible.
How big can the JSON be?
Several megabytes work fine. Very large files depend on your device's memory.