How to use it
Paste JSON, then choose Format or Minify. Syntax errors are shown below the output. Number spelling and object key order are preserved. Duplicate keys are preserved; this is a syntax validator, not a JSON Schema validator.
Readable JSON.
In one click.
Format, validate or minify JSON locally. Preserve number values and key order, then copy or download the result.
● Text stays on your deviceReady.
Private by design
Your input and output stay in this browser. No account, upload or server processing is required.