Paste compact or uneven JSON to validate its syntax and indent nested data using two spaces, four spaces, or tabs. Errors appear beside the input.
The formatter uses JavaScript's JSON parser. Duplicate object keys collapse to the last value, and numbers beyond JavaScript's safe precision may change. Do not treat formatting as a lossless archive of the original text.
Parsing and formatting run in your browser. Instruo does not need to upload API responses, configuration, or other pasted data.